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SOLR-13434: OpenTracing support for Solr (#685)

This commit is contained in:
Cao Manh Dat 2019-06-04 20:04:11 +01:00 committed by GitHub
parent bd3cc0b6a1
commit 301ea0e462
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67 changed files with 2918 additions and 24 deletions
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10
dev-tools/idea/.idea/libraries/Solr_jaeger_tracer_configurator_library.xml Normal file
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@ -0,0 +1,10 @@
<component name="libraryTable">
<library name="Solr jaeger tracer configurator library">
<CLASSES>
<root url="file://$PROJECT_DIR$/solr/contrib/jaegertracer-configurator/lib" />
</CLASSES>
<JAVADOC />
<SOURCES />
<jarDirectory url="file://$PROJECT_DIR$/solr/contrib/jaegertracer-configurator/lib" recursive="false" />
</library>
</component>

1
dev-tools/idea/.idea/modules.xml
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@ -59,6 +59,7 @@
<module group="Solr/Contrib" filepath="$PROJECT_DIR$/solr/contrib/langid/langid.iml" />
<module group="Solr/Contrib" filepath="$PROJECT_DIR$/solr/contrib/ltr/ltr.iml" />
<module group="Solr/Contrib" filepath="$PROJECT_DIR$/solr/contrib/prometheus-exporter/prometheus-exporter.iml" />
<module group="Solr/Contrib" filepath="$PROJECT_DIR$/solr/contrib/jaegertracer-configurator/jaegertracer-configurator.iml" />
<module group="Solr/Contrib" filepath="$PROJECT_DIR$/solr/contrib/velocity/velocity.iml" />
</modules>
</component>

37
dev-tools/idea/solr/contrib/jaegertracer-configurator/jaegertracer-configurator.iml Normal file
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@ -0,0 +1,37 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="false">
<output url="file://$MODULE_DIR$/../../../idea-build/solr/contrib/jaegertracer-configurator/classes/java" />
<output-test url="file://$MODULE_DIR$/../../../idea-build/solr/contrib/jaegertracer-configurator/classes/test" />
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src/test" isTestSource="true" />
<sourceFolder url="file://$MODULE_DIR$/src/test-files" type="java-test-resource" />
<sourceFolder url="file://$MODULE_DIR$/src/java" isTestSource="false" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" scope="TEST" name="JUnit" level="project" />
<orderEntry type="library" name="Solr core library" level="project" />
<orderEntry type="library" name="Solrj library" level="project" />
<orderEntry type="module-library" scope="TEST">
<library>
<CLASSES>
<root url="file://$MODULE_DIR$/lib" />
</CLASSES>
<JAVADOC />
<SOURCES />
<jarDirectory url="file://$MODULE_DIR$/lib" recursive="false" />
</library>
</orderEntry>
<orderEntry type="module" scope="TEST" module-name="lucene-test-framework" />
<orderEntry type="module" scope="TEST" module-name="solr-test-framework" />
<orderEntry type="library" name="Solr core library" level="project" />
<orderEntry type="library" name="Solrj library" level="project" />
<orderEntry type="library" name="Solr jaeger tracer configurator library" level="project" />
<orderEntry type="module" module-name="lucene-core" />
<orderEntry type="module" module-name="solr-core" />
<orderEntry type="module" module-name="solrj" />
<orderEntry type="module" module-name="analysis-common" />
</component>
</module>

1
dev-tools/idea/solr/test-framework/solr-test-framework.iml
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@ -16,6 +16,7 @@
<orderEntry type="library" name="Solr core library" level="project" />
<orderEntry type="library" name="Solr example library" level="project" />
<orderEntry type="library" name="Solrj library" level="project" />
<orderEntry type="library" name="Solr test framework library" level="project" />
<orderEntry type="module" module-name="lucene-test-framework" />
<orderEntry type="module" module-name="analysis-common" />
<orderEntry type="module" module-name="solrj" />

80
dev-tools/maven/solr/contrib/jaegertracer-configurator/pom.xml.template Normal file
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@ -0,0 +1,80 @@
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.solr</groupId>
<artifactId>solr-parent</artifactId>
<version>@version@</version>
<relativePath>../../pom.xml</relativePath>
</parent>
<groupId>org.apache.solr</groupId>
<artifactId>solr-jaegertracer-configurator</artifactId>
<packaging>jar</packaging>
<name>Apache Solr Jaeger Tracer Configurator Package</name>
<description>
Apache Solr Jaeger Tracer Configurator Package
</description>
<properties>
<module-directory>solr/contrib/jaegertracer-configurator</module-directory>
<relative-top-level>../../../..</relative-top-level>
<module-path>${relative-top-level}/${module-directory}</module-path>
</properties>
<scm>
<connection>scm:git:${vc-anonymous-base-url}</connection>
<developerConnection>scm:git:${vc-dev-base-url}</developerConnection>
<url>${vc-browse-base-url};f=${module-directory}</url>
</scm>
<dependencies>
<dependency>
<!-- lucene-test-framework dependency must be declared before lucene-core -->
<!-- This dependency cannot be put into solr-parent, because local -->
<!-- dependencies are always ordered before inherited dependencies. -->
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-test-framework</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-test-framework</artifactId>
<scope>test</scope>
</dependency>
@solr-jaegertracer-configurator.internal.dependencies@
@solr-jaegertracer-configurator.external.dependencies@
@solr-jaegertracer-configurator.internal.test.dependencies@
@solr-jaegertracer-configurator.external.test.dependencies@
</dependencies>
<build>
<sourceDirectory>${module-path}/src/java</sourceDirectory>
<testSourceDirectory>${module-path}/src/test</testSourceDirectory>
<testResources>
<testResource>
<directory>${module-path}/src/test-files</directory>
</testResource>
<testResource>
<directory>${top-level}/dev-tools/maven/solr</directory>
<includes>
<include>maven.testlogging.properties</include>
</includes>
</testResource>
</testResources>
</build>
</project>

1
dev-tools/maven/solr/contrib/pom.xml.template
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@ -37,6 +37,7 @@
<module>dataimporthandler</module>
<module>dataimporthandler-extras</module>
<module>extraction</module>
<module>jaegertracer-configurator</module>
<module>langid</module>
<module>ltr</module>
<module>prometheus-exporter</module>

13
lucene/ivy-versions.properties
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@ -66,9 +66,19 @@ io.dropwizard.metrics.version = 4.0.5
/io.dropwizard.metrics/metrics-jmx = ${io.dropwizard.metrics.version}
/io.dropwizard.metrics/metrics-jvm = ${io.dropwizard.metrics.version}
io.jaegertracing.version = 0.35.5
/io.jaegertracing/jaeger-core = ${io.jaegertracing.version}
/io.jaegertracing/jaeger-thrift = ${io.jaegertracing.version}
io.netty.netty-all.version = 4.0.52.Final
/io.netty/netty-all = ${io.netty.netty-all.version}
io.opentracing.version = 0.33.0
/io.opentracing/opentracing-api = ${io.opentracing.version}
/io.opentracing/opentracing-mock = ${io.opentracing.version}
/io.opentracing/opentracing-noop = ${io.opentracing.version}
/io.opentracing/opentracing-util = ${io.opentracing.version}
io.prometheus.version = 0.2.0
/io.prometheus/simpleclient = ${io.prometheus.version}
/io.prometheus/simpleclient_common = ${io.prometheus.version}
@ -182,6 +192,9 @@ org.apache.poi.version = 4.0.0
/org.apache.poi/poi-ooxml-schemas = ${org.apache.poi.version}
/org.apache.poi/poi-scratchpad = ${org.apache.poi.version}
org.apache.thrift.version = 0.12.0
/org.apache.thrift/libthrift = ${org.apache.thrift.version}
org.apache.tika.version = 1.19.1
/org.apache.tika/tika-core = ${org.apache.tika.version}
/org.apache.tika/tika-java7 = ${org.apache.tika.version}

32
solr/contrib/jaegertracer-configurator/README.txt Normal file
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@ -0,0 +1,32 @@
Welcome to Apache Solr Jaeger Tracer Configurator
========
Apache Solr Jaeger Tracer Configurator (solr-jaegertracer) provides a way for you to expose Solr's tracing to Jaeger.
# Setup Jaeger Tracer Configurator
Note that all library of solr-jaegertracer must be included in the classpath of all nodes then Jaeger tracer can be setup in `solr.xml` like this:
```
<tracerConfig name="tracerConfig" class="org.apache.solr.jaeger.JaegerTracerConfigurator">
<str name="agentHost">localhost</str>
<int name="agentPort">5775</int>
<bool name="logSpans">true</bool>
<int name="flushInterval">1000</int>
<int name="maxQueueSize">10000</int>
</tracerConfig>
```
List of parameters for JaegerTracerConfigurator include:
|Parameter|Type|Required|Default|Description|
|---------|----|--------|-------|-----------|
|agentHost|string|Yes||The host of Jaeger backend|
|agentPort|int|Yes||The port of Jaeger port|
|logsSpans|bool|No|true|Whether the tracer should also log the spans|
|flushInterval|int|No|5000|The tracer's flush interval (ms)|
|maxQueueSize|int|No|10000|The tracer's maximum queue size|
Other parameters which are not listed above can be configured using System Properties or Environment Variables. The full list are listed at [Jaeger-README](https://github.com/jaegertracing/jaeger-client-java/blob/master/jaeger-core/README.md).
By default the sampling rate is 0.1%, this value can be changed by updating
key `samplePercentage` of cluster properties. I.e: `/admin/collections?action=CLUSTERPROP&name=propertyName&samplePercentage=100`.

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solr/contrib/jaegertracer-configurator/build.xml Normal file
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@ -0,0 +1,34 @@
<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<project name="solr-jaegertracer-configurator" default="default">
<description>
Jaeger tracer configurator for tracing Solr using OpenTracing with Jaeger backend.
</description>
<import file="../contrib-build.xml"/>
<path id="classpath">
<path refid="solr.base.classpath"/>
</path>
<target name="compile-core" depends="solr-contrib-build.compile-core"/>
</project>

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solr/contrib/jaegertracer-configurator/ivy.xml Normal file
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@ -0,0 +1,32 @@
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<ivy-module version="2.0">
<info organisation="org.apache.solr" module="jaegertracer-configurator"/>
<configurations defaultconfmapping="compile->master;test->master">
<conf name="compile" transitive="false"/>
<conf name="test" transitive="false"/>
</configurations>
<dependencies>
<dependency org="io.jaegertracing" name="jaeger-core" rev="${/io.jaegertracing/jaeger-core}" conf="compile"/>
<dependency org="io.jaegertracing" name="jaeger-thrift" rev="${/io.jaegertracing/jaeger-thrift}" conf="compile"/>
<dependency org="org.apache.thrift" name="libthrift" rev="${/org.apache.thrift/libthrift}" conf="compile"/>
<exclude org="*" ext="*" matcher="regexp" type="${ivy.exclude.types}"/>
</dependencies>
</ivy-module>

89
solr/contrib/jaegertracer-configurator/src/java/org/apache/solr/jaeger/JaegerTracerConfigurator.java Normal file
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@ -0,0 +1,89 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.jaeger;
import io.jaegertracing.Configuration;
import io.jaegertracing.internal.samplers.ConstSampler;
import io.opentracing.Tracer;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.core.TracerConfigurator;
public class JaegerTracerConfigurator extends TracerConfigurator {
public static final String AGENT_HOST = "agentHost";
public static final String AGENT_PORT = "agentPort";
public static final String LOG_SPANS = "logSpans";
public static final String FLUSH_INTERVAL = "flushInterval";
public static final String MAX_QUEUE_SIZE = "maxQueueSize";
private volatile Tracer tracer;
@Override
public Tracer getTracer() {
return tracer;
}
@Override
public void init(NamedList args) {
Object host = args.get(AGENT_HOST);
if (!(host instanceof String)) {
throw new IllegalArgumentException("Expected a required string for param '" + AGENT_HOST + "'");
}
Object portArg = args.get(AGENT_PORT);
if (!(portArg instanceof Integer)) {
throw new IllegalArgumentException("Expected a required int for param '" + AGENT_PORT + "'");
}
int port = (Integer) portArg;
Boolean logSpans = args.getBooleanArg(LOG_SPANS);
if (logSpans == null)
logSpans = true;
Object flushIntervalArg = args.get(FLUSH_INTERVAL);
if (flushIntervalArg != null && !(flushIntervalArg instanceof Integer)) {
throw new IllegalArgumentException("Expected a required int for param '" + FLUSH_INTERVAL +"'");
}
int flushInterval = flushIntervalArg == null ? 1000 : (Integer) flushIntervalArg;
Object maxQueueArgs = args.get(MAX_QUEUE_SIZE);
if (maxQueueArgs != null && !(maxQueueArgs instanceof Integer)) {
throw new IllegalArgumentException("Expected a required int for param '" + MAX_QUEUE_SIZE +"'");
}
int maxQueue = maxQueueArgs == null ? 10000 : (Integer) maxQueueArgs;
Configuration.SamplerConfiguration samplerConfig = new Configuration.SamplerConfiguration()
.withType(ConstSampler.TYPE)
.withParam(1);
Configuration.ReporterConfiguration reporterConfig = Configuration.ReporterConfiguration.fromEnv();
Configuration.SenderConfiguration senderConfig = reporterConfig.getSenderConfiguration()
.withAgentHost(host.toString())
.withAgentPort(port);
reporterConfig.withLogSpans(logSpans)
.withFlushInterval(flushInterval)
.withMaxQueueSize(maxQueue)
.withSender(senderConfig);
tracer = new Configuration("solr")
.withSampler(samplerConfig)
.withReporter(reporterConfig)
.getTracer();
}
}

29
solr/contrib/jaegertracer-configurator/src/test-files/solr/collection1/conf/schema.xml Normal file
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@ -0,0 +1,29 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<schema name="minimal" version="1.1">
<fieldType name="string" class="solr.StrField"/>
<fieldType name="int" class="${solr.tests.IntegerFieldType}" docValues="${solr.tests.numeric.dv}" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
<fieldType name="long" class="${solr.tests.LongFieldType}" docValues="${solr.tests.numeric.dv}" precisionStep="0" omitNorms="true" positionIncrementGap="0"/>
<dynamicField name="*" type="string" indexed="true" stored="true"/>
<!-- for versioning -->
<field name="_version_" type="long" indexed="true" stored="true"/>
<field name="_root_" type="string" indexed="true" stored="true" multiValued="false" required="false"/>
<field name="id" type="string" indexed="true" stored="true"/>
<dynamicField name="*_s" type="string" indexed="true" stored="true" />
<uniqueKey>id</uniqueKey>
</schema>

51
solr/contrib/jaegertracer-configurator/src/test-files/solr/collection1/conf/solrconfig.xml Normal file
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@ -0,0 +1,51 @@
<?xml version="1.0" ?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Minimal solrconfig.xml with /select, /admin and /update only -->
<config>
<dataDir>${solr.data.dir:}</dataDir>
<directoryFactory name="DirectoryFactory"
class="${solr.directoryFactory:solr.NRTCachingDirectoryFactory}"/>
<schemaFactory class="ClassicIndexSchemaFactory"/>
<luceneMatchVersion>${tests.luceneMatchVersion:LATEST}</luceneMatchVersion>
<updateHandler class="solr.DirectUpdateHandler2">
<commitWithin>
<softCommit>${solr.commitwithin.softcommit:true}</softCommit>
</commitWithin>
<updateLog class="${solr.ulog:solr.UpdateLog}"></updateLog>
</updateHandler>
<requestHandler name="/select" class="solr.SearchHandler">
<lst name="defaults">
<str name="echoParams">explicit</str>
<str name="indent">true</str>
<str name="df">text</str>
</lst>
</requestHandler>
<indexConfig>
<mergeScheduler class="${solr.mscheduler:org.apache.lucene.index.ConcurrentMergeScheduler}"/>
: </indexConfig>
</config>

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solr/contrib/jaegertracer-configurator/src/test-files/solr/solr.xml Normal file
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@ -0,0 +1,62 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!--
solr.xml mimicking the old default solr.xml
-->
<solr>
<str name="shareSchema">${shareSchema:false}</str>
<str name="configSetBaseDir">${configSetBaseDir:configsets}</str>
<str name="coreRootDirectory">${coreRootDirectory:.}</str>
<str name="collectionsHandler">${collectionsHandler:solr.CollectionsHandler}</str>
<shardHandlerFactory name="shardHandlerFactory" class="HttpShardHandlerFactory">
<str name="urlScheme">${urlScheme:}</str>
<int name="socketTimeout">${socketTimeout:90000}</int>
<int name="connTimeout">${connTimeout:15000}</int>
<str name="shardsWhitelist">${solr.tests.shardsWhitelist:}</str>
</shardHandlerFactory>
<tracerConfig name="tracerConfig" class="org.apache.solr.jaeger.JaegerTracerConfigurator">
<str name="agentHost">localhost</str>
<int name="agentPort">5775</int>
<bool name="logSpans">true</bool>
<int name="flushInterval">1000</int>
<int name="maxQueueSize">10000</int>
</tracerConfig>
<solrcloud>
<str name="host">127.0.0.1</str>
<int name="hostPort">${hostPort:8983}</int>
<str name="hostContext">${hostContext:solr}</str>
<int name="zkClientTimeout">${solr.zkclienttimeout:30000}</int>
<bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool>
<int name="leaderVoteWait">${leaderVoteWait:10000}</int>
<int name="distribUpdateConnTimeout">${distribUpdateConnTimeout:45000}</int>
<int name="distribUpdateSoTimeout">${distribUpdateSoTimeout:340000}</int>
<str name="zkCredentialsProvider">${zkCredentialsProvider:org.apache.solr.common.cloud.DefaultZkCredentialsProvider}</str>
<str name="zkACLProvider">${zkACLProvider:org.apache.solr.common.cloud.DefaultZkACLProvider}</str>
</solrcloud>
<metrics>
<reporter name="default" class="org.apache.solr.metrics.reporters.SolrJmxReporter">
<str name="rootName">solr_${hostPort:8983}</str>
</reporter>
</metrics>
</solr>

124
solr/contrib/jaegertracer-configurator/src/test/org/apache/solr/jaeger/TestJaegerConfigurator.java Normal file
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@ -0,0 +1,124 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.jaeger;
import java.io.Closeable;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.cloud.MiniSolrCloudCluster;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.cloud.ZkStateReader;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.common.util.TimeSource;
import org.apache.solr.util.TimeOut;
import org.apache.solr.util.tracing.GlobalTracer;
import org.junit.Test;
import static org.apache.solr.jaeger.JaegerTracerConfigurator.AGENT_HOST;
import static org.apache.solr.jaeger.JaegerTracerConfigurator.AGENT_PORT;
import static org.apache.solr.jaeger.JaegerTracerConfigurator.FLUSH_INTERVAL;
import static org.apache.solr.jaeger.JaegerTracerConfigurator.LOG_SPANS;
import static org.apache.solr.jaeger.JaegerTracerConfigurator.MAX_QUEUE_SIZE;
public class TestJaegerConfigurator extends SolrTestCaseJ4 {
@Test
public void testInjected() throws Exception{
MiniSolrCloudCluster cluster = new SolrCloudTestCase.Builder(1, createTempDir())
.addConfig("config", TEST_PATH().resolve("collection1").resolve("conf"))
.withSolrXml(getFile("solr/solr.xml").toPath())
.build();
CollectionAdminRequest.setClusterProperty(ZkStateReader.SAMPLE_PERCENTAGE, "100.0")
.process(cluster.getSolrClient());
try {
TimeOut timeOut = new TimeOut(2, TimeUnit.MINUTES, TimeSource.NANO_TIME);
timeOut.waitFor("Waiting for GlobalTracer is registered", () -> GlobalTracer.getTracer() instanceof io.jaegertracing.internal.JaegerTracer);
} finally {
cluster.shutdown();
}
}
//TODO add integration test with Jaeger run on a container
@Test
public void testRequiredParameters() throws IOException {
JaegerTracerConfigurator configurator = new JaegerTracerConfigurator();
NamedList initArgs = new NamedList();
IllegalArgumentException exc = expectThrows(IllegalArgumentException.class, () -> configurator.init(initArgs));
assertTrue(exc.getMessage().contains(AGENT_HOST) || exc.getMessage().contains(AGENT_PORT));
initArgs.add(AGENT_HOST, "localhost");
exc = expectThrows(IllegalArgumentException.class, () -> configurator.init(initArgs));
assertTrue(exc.getMessage().contains(AGENT_PORT));
initArgs.add(AGENT_PORT, 5775);
// no exception should be thrown
configurator.init(initArgs);
((Closeable)configurator.getTracer()).close();
initArgs.add(LOG_SPANS, true);
initArgs.add(FLUSH_INTERVAL, 1000);
initArgs.add(MAX_QUEUE_SIZE, 10000);
configurator.init(initArgs);
((Closeable)configurator.getTracer()).close();
}
@Test
public void testIncorrectFormat() {
JaegerTracerConfigurator configurator = new JaegerTracerConfigurator();
NamedList initArgs = new NamedList();
initArgs.add(AGENT_HOST, 100);
initArgs.add(AGENT_PORT, 5775);
IllegalArgumentException exc = expectThrows(IllegalArgumentException.class, () -> configurator.init(initArgs));
assertTrue(exc.getMessage().contains(AGENT_HOST));
initArgs.clear();
initArgs.add(AGENT_HOST, "localhost");
initArgs.add(AGENT_PORT, "5775");
exc = expectThrows(IllegalArgumentException.class, () -> configurator.init(initArgs));
assertTrue(exc.getMessage().contains(AGENT_PORT));
initArgs.clear();
initArgs.add(AGENT_HOST, "localhost");
initArgs.add(AGENT_PORT, 5775);
initArgs.add(LOG_SPANS, 10);
SolrException solrExc = expectThrows(SolrException.class, () -> configurator.init(initArgs));
assertTrue(solrExc.getMessage().contains(LOG_SPANS));
initArgs.clear();
initArgs.add(AGENT_HOST, "localhost");
initArgs.add(AGENT_PORT, 5775);
initArgs.add(FLUSH_INTERVAL, "10");
exc = expectThrows(IllegalArgumentException.class, () -> configurator.init(initArgs));
assertTrue(exc.getMessage().contains(FLUSH_INTERVAL));
initArgs.clear();
initArgs.add(AGENT_HOST, "localhost");
initArgs.add(AGENT_PORT, 5775);
initArgs.add(MAX_QUEUE_SIZE, "10");
exc = expectThrows(IllegalArgumentException.class, () -> configurator.init(initArgs));
assertTrue(exc.getMessage().contains(MAX_QUEUE_SIZE));
}
}

4
solr/core/ivy.xml
View File

@ -30,6 +30,10 @@
</configurations>
<dependencies>
<dependency org="io.opentracing" name="opentracing-api" rev="${/io.opentracing/opentracing-api}" conf="compile"/>
<dependency org="io.opentracing" name="opentracing-noop" rev="${/io.opentracing/opentracing-noop}" conf="compile"/>
<dependency org="io.opentracing" name="opentracing-util" rev="${/io.opentracing/opentracing-util}" conf="compile"/>
<dependency org="commons-codec" name="commons-codec" rev="${/commons-codec/commons-codec}" conf="compile"/>
<dependency org="commons-io" name="commons-io" rev="${/commons-io/commons-io}" conf="compile"/>
<dependency org="org.apache.commons" name="commons-exec" rev="${/org.apache.commons/commons-exec}" conf="compile"/>

7
solr/core/src/java/org/apache/solr/core/CoreContainer.java
View File

@ -617,8 +617,11 @@ public class CoreContainer {
hostName = cfg.getNodeName();
zkSys.initZooKeeper(this, solrHome, cfg.getCloudConfig());
if(isZooKeeperAware()) pkiAuthenticationPlugin = new PKIAuthenticationPlugin(this, zkSys.getZkController().getNodeName(),
(PublicKeyHandler) containerHandlers.get(PublicKeyHandler.PATH));
if(isZooKeeperAware()) {
pkiAuthenticationPlugin = new PKIAuthenticationPlugin(this, zkSys.getZkController().getNodeName(),
(PublicKeyHandler) containerHandlers.get(PublicKeyHandler.PATH));
TracerConfigurator.loadTracer(loader, cfg.getTracerConfiguratorPluginInfo(), getZkController().getZkStateReader());
}
MDCLoggingContext.setNode(this);

17
solr/core/src/java/org/apache/solr/core/NodeConfig.java
View File

@ -77,6 +77,8 @@ public class NodeConfig {
private final PluginInfo transientCacheConfig;
private final PluginInfo tracerConfig;
private NodeConfig(String nodeName, Path coreRootDirectory, Path solrDataHome, Integer booleanQueryMaxClauseCount,
Path configSetBaseDirectory, String sharedLibDirectory,
PluginInfo shardHandlerFactoryConfig, UpdateShardHandlerConfig updateShardHandlerConfig,
@ -85,7 +87,7 @@ public class NodeConfig {
LogWatcherConfig logWatcherConfig, CloudConfig cloudConfig, Integer coreLoadThreads, int replayUpdatesThreads,
int transientCacheSize, boolean useSchemaCache, String managementPath, SolrResourceLoader loader,
Properties solrProperties, PluginInfo[] backupRepositoryPlugins,
MetricsConfig metricsConfig, PluginInfo transientCacheConfig) {
MetricsConfig metricsConfig, PluginInfo transientCacheConfig, PluginInfo tracerConfig) {
this.nodeName = nodeName;
this.coreRootDirectory = coreRootDirectory;
this.solrDataHome = solrDataHome;
@ -111,6 +113,7 @@ public class NodeConfig {
this.backupRepositoryPlugins = backupRepositoryPlugins;
this.metricsConfig = metricsConfig;
this.transientCacheConfig = transientCacheConfig;
this.tracerConfig = tracerConfig;
if (this.cloudConfig != null && this.getCoreLoadThreadCount(false) < 2) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR,
@ -226,6 +229,10 @@ public class NodeConfig {
public PluginInfo getTransientCachePluginInfo() { return transientCacheConfig; }
public PluginInfo getTracerConfiguratorPluginInfo() {
return tracerConfig;
}
public static class NodeConfigBuilder {
private Path coreRootDirectory;
@ -253,6 +260,7 @@ public class NodeConfig {
private PluginInfo[] backupRepositoryPlugins;
private MetricsConfig metricsConfig;
private PluginInfo transientCacheConfig;
private PluginInfo tracerConfig;
private final SolrResourceLoader loader;
private final String nodeName;
@ -410,12 +418,17 @@ public class NodeConfig {
return this;
}
public NodeConfigBuilder setTracerConfig(PluginInfo tracerConfig) {
this.tracerConfig = tracerConfig;
return this;
}
public NodeConfig build() {
return new NodeConfig(nodeName, coreRootDirectory, solrDataHome, booleanQueryMaxClauseCount,
configSetBaseDirectory, sharedLibDirectory, shardHandlerFactoryConfig,
updateShardHandlerConfig, coreAdminHandlerClass, collectionsAdminHandlerClass, healthCheckHandlerClass, infoHandlerClass, configSetsHandlerClass,
logWatcherConfig, cloudConfig, coreLoadThreads, replayUpdatesThreads, transientCacheSize, useSchemaCache, managementPath, loader, solrProperties,
backupRepositoryPlugins, metricsConfig, transientCacheConfig);
backupRepositoryPlugins, metricsConfig, transientCacheConfig, tracerConfig);
}
}
}

6
solr/core/src/java/org/apache/solr/core/SolrXmlConfig.java
View File

@ -100,6 +100,7 @@ public class SolrXmlConfig {
configBuilder.setUpdateShardHandlerConfig(updateConfig);
configBuilder.setShardHandlerFactoryConfig(getShardHandlerFactoryPluginInfo(config));
configBuilder.setSolrCoreCacheFactoryConfig(getTransientCoreCacheFactoryPluginInfo(config));
configBuilder.setTracerConfig(getTracerPluginInfo(config));
configBuilder.setLogWatcherConfig(loadLogWatcherConfig(config, "solr/logging/*[@name]", "solr/logging/watcher/*[@name]"));
configBuilder.setSolrProperties(loadProperties(config));
if (cloudConfig != null)
@ -553,4 +554,9 @@ public class SolrXmlConfig {
Node node = config.getNode("solr/transientCoreCacheFactory", false);
return (node == null) ? null : new PluginInfo(node, "transientCoreCacheFactory", false, true);
}
private static PluginInfo getTracerPluginInfo(XmlConfigFile config) {
Node node = config.getNode("solr/tracerConfig", false);
return (node == null) ? null : new PluginInfo(node, "tracerConfig", false, true);
}
}

70
solr/core/src/java/org/apache/solr/core/TracerConfigurator.java Normal file
View File

@ -0,0 +1,70 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.core;
import java.lang.invoke.MethodHandles;
import io.opentracing.Tracer;
import io.opentracing.noop.NoopTracerFactory;
import org.apache.solr.common.cloud.ZkStateReader;
import org.apache.solr.util.plugin.NamedListInitializedPlugin;
import org.apache.solr.util.tracing.GlobalTracer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class TracerConfigurator implements NamedListInitializedPlugin {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
public abstract Tracer getTracer();
public static void loadTracer(SolrResourceLoader loader, PluginInfo info, ZkStateReader stateReader) {
if (info == null) {
// in case of a Tracer is registered to OpenTracing through javaagent
if (io.opentracing.util.GlobalTracer.isRegistered()) {
GlobalTracer.setup(io.opentracing.util.GlobalTracer.get());
registerListener(stateReader);
} else {
GlobalTracer.setup(NoopTracerFactory.create());
GlobalTracer.get().setSamplePercentage(0.0);
}
} else {
TracerConfigurator configurator = loader
.newInstance(info.className, TracerConfigurator.class);
configurator.init(info.initArgs);
GlobalTracer.setup(configurator.getTracer());
registerListener(stateReader);
}
}
private static void registerListener(ZkStateReader stateReader) {
stateReader.registerClusterPropertiesListener(properties -> {
if (properties.containsKey(ZkStateReader.SAMPLE_PERCENTAGE)) {
try {
double sampleRate = Double.parseDouble(properties.get(ZkStateReader.SAMPLE_PERCENTAGE).toString());
GlobalTracer.get().setSamplePercentage(sampleRate);
} catch (NumberFormatException e) {
log.error("Unable to set sample rate", e);
}
} else {
GlobalTracer.get().setSamplePercentage(0.1);
}
return false;
});
}
}

11
solr/core/src/java/org/apache/solr/handler/component/HttpShardHandler.java
View File

@ -33,6 +33,10 @@ import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.function.Predicate;
import io.opentracing.Span;
import io.opentracing.Tracer;
import io.opentracing.propagation.Format;
import org.apache.solr.client.solrj.SolrRequest;
import org.apache.solr.client.solrj.SolrResponse;
import org.apache.solr.client.solrj.SolrServerException;
@ -60,6 +64,8 @@ import org.apache.solr.common.util.StrUtils;
import org.apache.solr.core.CoreDescriptor;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.request.SolrRequestInfo;
import org.apache.solr.util.tracing.GlobalTracer;
import org.apache.solr.util.tracing.SolrRequestCarrier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
@ -147,6 +153,8 @@ public class HttpShardHandler extends ShardHandler {
public void submit(final ShardRequest sreq, final String shard, final ModifiableSolrParams params) {
// do this outside of the callable for thread safety reasons
final List<String> urls = getURLs(shard);
final Tracer tracer = GlobalTracer.getTracer();
final Span span = tracer != null? tracer.activeSpan() : null;
Callable<ShardResponse> task = () -> {
@ -165,6 +173,9 @@ public class HttpShardHandler extends ShardHandler {
params.remove(CommonParams.VERSION);
QueryRequest req = makeQueryRequest(sreq, params, shard);
if (tracer != null && span != null) {
tracer.inject(span.context(), Format.Builtin.HTTP_HEADERS, new SolrRequestCarrier(req));
}
req.setMethod(SolrRequest.METHOD.POST);
SolrRequestInfo requestInfo = SolrRequestInfo.getRequestInfo();
if (requestInfo != null) req.setUserPrincipal(requestInfo.getReq().getUserPrincipal());

11
solr/core/src/java/org/apache/solr/logging/MDCLoggingContext.java
View File

@ -26,6 +26,7 @@ import java.util.function.Supplier;
import org.apache.solr.cloud.CloudDescriptor;
import org.apache.solr.cloud.ZkController;
import org.apache.solr.common.StringUtils;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.core.CoreDescriptor;
import org.apache.solr.core.SolrCore;
@ -37,6 +38,7 @@ import org.slf4j.MDC;
* {@link #setCoreDescriptor(CoreContainer, CoreDescriptor)} and then {@link #clear()} in a finally block.
*/
public class MDCLoggingContext {
public static final String TRACE_ID = "trace_id";
// When a thread sets context and finds that the context is already set, we should noop and ignore the finally clear
private static ThreadLocal<Integer> CALL_DEPTH = ThreadLocal.withInitial(new Supplier<Integer>() {
@Override
@ -53,6 +55,14 @@ public class MDCLoggingContext {
}
}
public static void setTracerId(String traceId) {
if (!StringUtils.isEmpty(traceId)) {
MDC.put(TRACE_ID, "t:" + traceId);
} else {
MDC.remove(TRACE_ID);
}
}
public static void setShard(String shard) {
if (shard != null) {
MDC.put(SHARD_ID_PROP, "s:" + shard);
@ -151,6 +161,7 @@ public class MDCLoggingContext {
MDC.remove(REPLICA_PROP);
MDC.remove(SHARD_ID_PROP);
MDC.remove(NODE_NAME_PROP);
MDC.remove(TRACE_ID);
}
public static void reset() {

7
solr/core/src/java/org/apache/solr/servlet/HttpSolrCall.java
View File

@ -38,6 +38,7 @@ import java.util.Random;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import io.opentracing.Span;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.Header;
@ -106,6 +107,7 @@ import org.apache.solr.servlet.cache.Method;
import org.apache.solr.update.processor.DistributingUpdateProcessorFactory;
import org.apache.solr.util.RTimerTree;
import org.apache.solr.util.TimeOut;
import org.apache.solr.util.tracing.GlobalTracer;
import org.apache.zookeeper.KeeperException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -467,6 +469,11 @@ public class HttpSolrCall {
*/
public Action call() throws IOException {
MDCLoggingContext.reset();
Span activeSpan = GlobalTracer.getTracer().activeSpan();
if (activeSpan != null) {
MDCLoggingContext.setTracerId(activeSpan.context().toTraceId());
}
MDCLoggingContext.setNode(cores);
if (cores == null) {

34
solr/core/src/java/org/apache/solr/servlet/SolrDispatchFilter.java
View File

@ -53,6 +53,11 @@ import com.codahale.metrics.jvm.ClassLoadingGaugeSet;
import com.codahale.metrics.jvm.GarbageCollectorMetricSet;
import com.codahale.metrics.jvm.MemoryUsageGaugeSet;
import com.codahale.metrics.jvm.ThreadStatesGaugeSet;
import io.opentracing.Scope;
import io.opentracing.Span;
import io.opentracing.SpanContext;
import io.opentracing.Tracer;
import io.opentracing.tag.Tags;
import org.apache.commons.io.FileCleaningTracker;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.client.HttpClient;
@ -77,6 +82,7 @@ import org.apache.solr.security.AuthenticationPlugin;
import org.apache.solr.security.PKIAuthenticationPlugin;
import org.apache.solr.security.PublicKeyHandler;
import org.apache.solr.util.SolrFileCleaningTracker;
import org.apache.solr.util.tracing.GlobalTracer;
import org.apache.solr.util.StartupLoggingUtils;
import org.apache.solr.util.configuration.SSLConfigurationsFactory;
import org.slf4j.Logger;
@ -335,6 +341,7 @@ public class SolrDispatchFilter extends BaseSolrFilter {
httpClient = null;
cc.shutdown();
}
GlobalTracer.get().close();
}
}
@ -347,7 +354,8 @@ public class SolrDispatchFilter extends BaseSolrFilter {
if (!(_request instanceof HttpServletRequest)) return;
HttpServletRequest request = closeShield((HttpServletRequest)_request, retry);
HttpServletResponse response = closeShield((HttpServletResponse)_response, retry);
Scope scope = null;
Span span = null;
try {
if (cores == null || cores.isShutDown()) {
@ -362,9 +370,9 @@ public class SolrDispatchFilter extends BaseSolrFilter {
}
}
String requestPath = request.getServletPath();
// No need to even create the HttpSolrCall object if this path is excluded.
if (excludePatterns != null) {
String requestPath = request.getServletPath();
String extraPath = request.getPathInfo();
if (extraPath != null) {
// In embedded mode, servlet path is empty - include all post-context path here for testing
@ -379,6 +387,24 @@ public class SolrDispatchFilter extends BaseSolrFilter {
}
}
SpanContext parentSpan = GlobalTracer.get().extract(request);
Tracer tracer = GlobalTracer.getTracer();
Tracer.SpanBuilder spanBuilder = null;
String hostAndPort = request.getServerName() + "_" + request.getServerPort();
if (parentSpan == null) {
spanBuilder = tracer.buildSpan(request.getMethod() + ":" + hostAndPort);
} else {
spanBuilder = tracer.buildSpan(request.getMethod() + ":" + hostAndPort)
.asChildOf(parentSpan);
}
spanBuilder
.withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_SERVER)
.withTag(Tags.HTTP_URL.getKey(), request.getRequestURL().toString());
span = spanBuilder.start();
scope = tracer.scopeManager().activate(span);
AtomicReference<HttpServletRequest> wrappedRequest = new AtomicReference<>();
if (!authenticateRequest(request, response, wrappedRequest)) { // the response and status code have already been sent
return;
@ -416,6 +442,10 @@ public class SolrDispatchFilter extends BaseSolrFilter {
ExecutorUtil.setServerThreadFlag(null);
}
} finally {
if (span != null) span.finish();
if (scope != null) scope.close();
GlobalTracer.get().clearContext();
consumeInputFully(request);
}
}

4
solr/core/src/java/org/apache/solr/servlet/SolrRequestParsers.java
View File

@ -61,6 +61,7 @@ import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.request.SolrQueryRequestBase;
import org.apache.solr.util.RTimerTree;
import org.apache.solr.util.SolrFileCleaningTracker;
import org.apache.solr.util.tracing.GlobalTracer;
import static org.apache.solr.common.params.CommonParams.PATH;
@ -165,6 +166,9 @@ public class SolrRequestParsers
// Pick the parser from the request...
ArrayList<ContentStream> streams = new ArrayList<>(1);
SolrParams params = parser.parseParamsAndFillStreams( req, streams );
if (GlobalTracer.get().tracing()) {
GlobalTracer.get().getTracer().activeSpan().setTag("params", params.toString());
}
SolrQueryRequest sreq = buildRequestFrom(core, params, streams, getRequestTimer(req), req);
// Handlers and login will want to know the path. If it contains a ':'

12
solr/core/src/java/org/apache/solr/update/SolrCmdDistributor.java
View File

@ -33,6 +33,9 @@ import java.util.concurrent.CompletionService;
import java.util.concurrent.ExecutorCompletionService;
import java.util.concurrent.Future;
import io.opentracing.Span;
import io.opentracing.Tracer;
import io.opentracing.propagation.Format;
import org.apache.http.NoHttpResponseException;
import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrServerException;
@ -50,6 +53,8 @@ import org.apache.solr.request.SolrRequestInfo;
import org.apache.solr.update.processor.DistributedUpdateProcessor;
import org.apache.solr.update.processor.DistributedUpdateProcessor.LeaderRequestReplicationTracker;
import org.apache.solr.update.processor.DistributedUpdateProcessor.RollupRequestReplicationTracker;
import org.apache.solr.util.tracing.GlobalTracer;
import org.apache.solr.util.tracing.SolrRequestCarrier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -285,6 +290,13 @@ public class SolrCmdDistributor implements Closeable {
req.uReq.setUserPrincipal(SolrRequestInfo.getRequestInfo().getReq().getUserPrincipal());
}
Tracer tracer = GlobalTracer.getTracer();
Span parentSpan = tracer.activeSpan();
if (parentSpan != null) {
tracer.inject(parentSpan.context(), Format.Builtin.HTTP_HEADERS,
new SolrRequestCarrier(req.uReq));
}
if (req.synchronous) {
blockAndDoRetries();

120
solr/core/src/java/org/apache/solr/util/tracing/GlobalTracer.java Normal file
View File

@ -0,0 +1,120 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.util.tracing;
import javax.servlet.http.HttpServletRequest;
import java.util.Random;
import com.google.common.annotations.VisibleForTesting;
import io.opentracing.SpanContext;
import io.opentracing.Tracer;
import io.opentracing.noop.NoopTracerFactory;
import io.opentracing.propagation.Format;
public class GlobalTracer {
private static final Tracer NOOP_TRACER = NoopTracerFactory.create();
private static final Random RANDOM;
static {
// We try to make things reproducible in the context of our tests by initializing the random instance
// based on the current seed
String seed = System.getProperty("tests.seed");
if (seed == null) {
RANDOM = new Random();
} else {
RANDOM = new Random(seed.hashCode());
}
}
private static volatile GlobalTracer INS = new GlobalTracer(NOOP_TRACER);
public synchronized static void setup(Tracer tracer) {
if (INS != null) {
INS.close();
}
INS = new GlobalTracer(tracer);
}
public static GlobalTracer get() {
return INS;
}
public static Tracer getTracer() {
return INS.tracer();
}
@VisibleForTesting
final Tracer tracer;
private double rate;
private final ThreadLocal<Tracer> threadLocal = new ThreadLocal<>();
public GlobalTracer(Tracer tracer) {
this.tracer = tracer;
}
public synchronized void setSamplePercentage(double rate) {
this.rate = rate / 100.0;
}
@VisibleForTesting
public double getSampleRate() {
return rate;
}
public boolean tracing() {
return threadLocal.get() != null
&& threadLocal.get() != NOOP_TRACER
&& threadLocal.get().activeSpan() != null;
}
public SpanContext extract(HttpServletRequest request) {
SpanContext spanContext = tracer.extract(Format.Builtin.HTTP_HEADERS, new HttpServletCarrier(request));
if (spanContext != null) {
threadLocal.set(tracer);
}
return spanContext;
}
private Tracer tracer() {
Tracer tracer = threadLocal.get();
if (tracer != null)
return tracer;
if (traced()) {
threadLocal.set(this.tracer);
} else {
threadLocal.set(NOOP_TRACER);
}
return threadLocal.get();
}
/**
* Clear tracing context for the current thread
*/
public void clearContext() {
threadLocal.remove();
}
private boolean traced() {
return RANDOM.nextDouble() <= rate;
}
public void close() {
tracer.close();
}
}

93
solr/core/src/java/org/apache/solr/util/tracing/HttpServletCarrier.java Normal file
View File

@ -0,0 +1,93 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.util.tracing;
import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import io.opentracing.propagation.TextMap;
/**
* A Carrier for extract Span context out of request headers
*/
public class HttpServletCarrier implements TextMap {
private Iterator<Map.Entry<String, String>> it;
public HttpServletCarrier(HttpServletRequest request) {
this.it = new Iterator<>() {
Enumeration<String> headerNameIt = request.getHeaderNames();
String headerName = null;
Enumeration<String> headerValue = null;
@Override
public boolean hasNext() {
if (headerValue != null && headerValue.hasMoreElements()) {
return true;
}
return headerNameIt.hasMoreElements();
}
@Override
public Map.Entry<String, String> next() {
if (!hasNext()) {
throw new NoSuchElementException();
}
if (headerValue == null || !headerValue.hasMoreElements()) {
headerName = headerNameIt.nextElement();
headerValue = request.getHeaders(headerName);
}
String key = headerName;
String val = headerValue.nextElement();
return new Map.Entry<>() {
@Override
public String getKey() {
return key;
}
@Override
public String getValue() {
return val;
}
@Override
public String setValue(String value) {
throw new UnsupportedOperationException();
}
};
}
};
}
@Override
public Iterator<Map.Entry<String, String>> iterator() {
return it;
}
@Override
public void put(String key, String value) {
throw new UnsupportedOperationException("HttpServletCarrier should only be used with Tracer.extract()");
}
}

46
solr/core/src/java/org/apache/solr/util/tracing/SolrRequestCarrier.java Normal file
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@ -0,0 +1,46 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.util.tracing;
import java.util.Iterator;
import java.util.Map;
import io.opentracing.propagation.TextMap;
import org.apache.solr.client.solrj.SolrRequest;
/**
* An OpenTracing Carrier for injecting Span context through SolrRequest
*/
public class SolrRequestCarrier implements TextMap {
private final SolrRequest solrRequest;
public SolrRequestCarrier(SolrRequest solrRequest) {
this.solrRequest = solrRequest;
}
@Override
public Iterator<Map.Entry<String, String>> iterator() {
throw new UnsupportedOperationException("carrier is write-only");
}
@Override
public void put(String key, String value) {
solrRequest.addHeader(key, value);
}
}

23
solr/core/src/java/org/apache/solr/util/tracing/package-info.java Normal file
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@ -0,0 +1,23 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Tracing related utilities
*/
package org.apache.solr.util.tracing;

2
solr/core/src/test-files/log4j2.xml
View File

@ -21,7 +21,7 @@
<Console name="STDERR" target="SYSTEM_ERR">
<PatternLayout>
<Pattern>
%maxLen{%-4r %-5p (%t) [%X{node_name} %X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%notEmpty{
%maxLen{%-4r %-5p (%t) [%X{node_name} %X{collection} %X{shard} %X{replica} %X{core} %X{trace_id}] %c{1.} %m%notEmpty{
=>%ex{short}}}{10240}%n
</Pattern>
</PatternLayout>

57
solr/core/src/test-files/solr/solr-tracing.xml Normal file
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@ -0,0 +1,57 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!--
All (relative) paths are relative to the installation path
-->
<solr>
<str name="shareSchema">${shareSchema:false}</str>
<str name="configSetBaseDir">${configSetBaseDir:configsets}</str>
<str name="coreRootDirectory">${coreRootDirectory:.}</str>
<str name="collectionsHandler">${collectionsHandler:solr.CollectionsHandler}</str>
<shardHandlerFactory name="shardHandlerFactory" class="HttpShardHandlerFactory">
<str name="urlScheme">${urlScheme:}</str>
<int name="socketTimeout">${socketTimeout:90000}</int>
<int name="connTimeout">${connTimeout:15000}</int>
<str name="shardsWhitelist">${solr.tests.shardsWhitelist:}</str>
</shardHandlerFactory>
<tracerConfig name="tracerConfig" class="MockTracerConfigurator">
</tracerConfig>
<solrcloud>
<str name="host">127.0.0.1</str>
<int name="hostPort">${hostPort:8983}</int>
<str name="hostContext">${hostContext:solr}</str>
<int name="zkClientTimeout">${solr.zkclienttimeout:30000}</int>
<bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool>
<int name="leaderVoteWait">${leaderVoteWait:10000}</int>
<int name="distribUpdateConnTimeout">${distribUpdateConnTimeout:45000}</int>
<int name="distribUpdateSoTimeout">${distribUpdateSoTimeout:340000}</int>
<str name="zkCredentialsProvider">${zkCredentialsProvider:org.apache.solr.common.cloud.DefaultZkCredentialsProvider}</str>
<str name="zkACLProvider">${zkACLProvider:org.apache.solr.common.cloud.DefaultZkACLProvider}</str>
</solrcloud>
<metrics>
<reporter name="default" class="org.apache.solr.metrics.reporters.SolrJmxReporter">
<str name="rootName">solr_${hostPort:8983}</str>
</reporter>
</metrics>
</solr>

12
solr/core/src/test/org/apache/solr/security/JWTAuthPluginIntegrationTest.java
View File

@ -173,23 +173,23 @@ public class JWTAuthPluginIntegrationTest extends SolrCloudAuthTestCase {
assertPkiAuthMetricsMinimums(4, 4, 0, 0, 0, 0);
Pair<String,Integer> result = post(baseUrl + "/" + COLLECTION + "/update?commit=true", "[{\"id\" : \"1\"}, {\"id\": \"2\"}, {\"id\": \"3\"}]", jwtTestToken);
assertEquals(Integer.valueOf(200), result.second());
assertAuthMetricsMinimums(3, 3, 0, 0, 0, 0);
assertPkiAuthMetricsMinimums(5, 5, 0, 0, 0, 0);
assertAuthMetricsMinimums(4, 4, 0, 0, 0, 0);
assertPkiAuthMetricsMinimums(4, 4, 0, 0, 0, 0);
// First a non distributed query
result = get(baseUrl + "/" + COLLECTION + "/query?q=*:*&distrib=false", jwtTestToken);
assertEquals(Integer.valueOf(200), result.second());
assertAuthMetricsMinimums(4, 4, 0, 0, 0, 0);
assertAuthMetricsMinimums(5, 5, 0, 0, 0, 0);
// Now do a distributed query, using JWTAuth for inter-node
result = get(baseUrl + "/" + COLLECTION + "/query?q=*:*", jwtTestToken);
assertEquals(Integer.valueOf(200), result.second());
assertAuthMetricsMinimums(9, 9, 0, 0, 0, 0);
assertAuthMetricsMinimums(10, 10, 0, 0, 0, 0);
// Delete
assertEquals(200, get(baseUrl + "/admin/collections?action=DELETE&name=" + COLLECTION, jwtTestToken).second().intValue());
assertAuthMetricsMinimums(10, 10, 0, 0, 0, 0);
assertPkiAuthMetricsMinimums(7, 7, 0, 0, 0, 0);
assertAuthMetricsMinimums(11, 11, 0, 0, 0, 0);
assertPkiAuthMetricsMinimums(6, 6, 0, 0, 0, 0);
}
private void getAndFail(String url, String token) {

144
solr/core/src/test/org/apache/solr/util/tracing/TestDistributedTracing.java Normal file
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@ -0,0 +1,144 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.util.tracing;
import java.io.IOException;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.stream.Collectors;
import io.opentracing.mock.MockSpan;
import io.opentracing.mock.MockTracer;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.CloudSolrClient;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.common.cloud.ZkStateReader;
import org.apache.solr.common.util.TimeSource;
import org.apache.solr.util.TimeOut;
import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestDistributedTracing extends SolrCloudTestCase {
private static final String COLLECTION = "collection1";
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
@BeforeClass
public static void beforeTest() throws Exception {
configureCluster(4)
.addConfig("config", TEST_PATH().resolve("configsets").resolve("cloud-minimal").resolve("conf"))
.withSolrXml(TEST_PATH().resolve("solr-tracing.xml"))
.configure();
CollectionAdminRequest.setClusterProperty(ZkStateReader.SAMPLE_PERCENTAGE, "100.0")
.process(cluster.getSolrClient());
waitForSampleRateUpdated(1.0);
CollectionAdminRequest
.createCollection(COLLECTION, "config", 2, 2)
.process(cluster.getSolrClient());
cluster.waitForActiveCollection(COLLECTION, 2, 4);
}
private static void waitForSampleRateUpdated(double rate) throws TimeoutException, InterruptedException {
TimeOut timeOut = new TimeOut(1, TimeUnit.MINUTES, TimeSource.NANO_TIME);
timeOut.waitFor("Waiting for sample rate is updated", () ->
Math.abs(GlobalTracer.get().getSampleRate() - rate) < 0.001
&& GlobalTracer.get().tracer instanceof MockTracer);
}
private List<MockSpan> getFinishedSpans() {
return ((MockTracer)GlobalTracer.get().tracer).finishedSpans();
}
@Test
public void test() throws IOException, SolrServerException, TimeoutException, InterruptedException {
CloudSolrClient cloudClient = cluster.getSolrClient();
List<MockSpan> allSpans = getFinishedSpans();
cloudClient.add(COLLECTION, sdoc("id", "1"));
List<MockSpan> finishedSpans = getRecentSpans(allSpans);
finishedSpans.removeIf(x ->
!x.tags().get("http.url").toString().endsWith("/update"));
assertEquals(2, finishedSpans.size());
assertOneSpanIsChildOfAnother(finishedSpans);
cloudClient.add(COLLECTION, sdoc("id", "2"));
finishedSpans = getRecentSpans(allSpans);
finishedSpans.removeIf(x ->
!x.tags().get("http.url").toString().endsWith("/update"));
assertEquals(2, finishedSpans.size());
assertOneSpanIsChildOfAnother(finishedSpans);
cloudClient.add(COLLECTION, sdoc("id", "3"));
cloudClient.add(COLLECTION, sdoc("id", "4"));
cloudClient.commit(COLLECTION);
getRecentSpans(allSpans);
cloudClient.query(COLLECTION, new SolrQuery("*:*"));
finishedSpans = getRecentSpans(allSpans);
finishedSpans.removeIf(x ->
!x.tags().get("http.url").toString().endsWith("/select"));
// one from client to server, 2 for execute query, 2 for fetching documents
assertEquals(5, finishedSpans.size());
assertEquals(1, finishedSpans.stream().filter(s -> s.parentId() == 0).count());
long parentId = finishedSpans.stream()
.filter(s -> s.parentId() == 0)
.collect(Collectors.toList())
.get(0).context().spanId();
for (MockSpan span: finishedSpans) {
if (span.parentId() != 0 && parentId != span.parentId()) {
fail("All spans must belong to single span, but:"+finishedSpans);
}
}
CollectionAdminRequest.setClusterProperty(ZkStateReader.SAMPLE_PERCENTAGE, "0.0")
.process(cluster.getSolrClient());
waitForSampleRateUpdated(0);
getRecentSpans(allSpans);
cloudClient.add(COLLECTION, sdoc("id", "5"));
finishedSpans = getRecentSpans(allSpans);
assertEquals(0, finishedSpans.size());
}
private void assertOneSpanIsChildOfAnother(List<MockSpan> finishedSpans) {
MockSpan child = finishedSpans.get(0);
MockSpan parent = finishedSpans.get(1);
if (child.parentId() == 0) {
MockSpan temp = parent;
parent = child;
child = temp;
}
assertEquals(child.parentId(), parent.context().spanId());
}
private List<MockSpan> getRecentSpans(List<MockSpan> allSpans) {
List<MockSpan> result = new ArrayList<>(getFinishedSpans());
result.removeAll(allSpans);
allSpans.clear();
allSpans.addAll(getFinishedSpans());
return result;
}
}

68
solr/core/src/test/org/apache/solr/util/tracing/TestHttpServletCarrier.java Normal file
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@ -0,0 +1,68 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.util.tracing;
import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Map;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
import org.apache.commons.collections.IteratorUtils;
import org.apache.solr.SolrTestCaseJ4;
import org.junit.Test;
import org.mockito.stubbing.Answer;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class TestHttpServletCarrier extends SolrTestCaseJ4 {
@Test
public void test() {
SolrTestCaseJ4.assumeWorkingMockito();
HttpServletRequest req = mock(HttpServletRequest.class);
Multimap<String, String> headers = HashMultimap.create();
headers.put("a", "a");
headers.put("a", "b");
headers.put("a", "c");
headers.put("b", "a");
headers.put("b", "b");
headers.put("c", "a");
when(req.getHeaderNames()).thenReturn(IteratorUtils.asEnumeration(headers.keySet().iterator()));
when(req.getHeaders(anyString())).thenAnswer((Answer<Enumeration<String>>) inv -> {
String key = inv.getArgument(0);
return IteratorUtils.asEnumeration(headers.get(key).iterator());
});
HttpServletCarrier servletCarrier = new HttpServletCarrier(req);
Iterator<Map.Entry<String, String>> it = servletCarrier.iterator();
Multimap<String, String> resultBack = HashMultimap.create();
while(it.hasNext()) {
Map.Entry<String, String> entry = it.next();
resultBack.put(entry.getKey(), entry.getValue());
}
assertEquals(headers, resultBack);
}
}

1
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@ -0,0 +1 @@
fc934c7619ca7c626a7ce713646d8c43f8dca8bd

201
solr/licenses/jaeger-core-LICENSE-ASL.txt Normal file
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
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"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
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3. Grant of Patent License. Subject to the terms and conditions of
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or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
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of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
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8. Limitation of Liability. In no event and under no legal theory,
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unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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work stoppage, computer failure or malfunction, or any and all
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on Your own behalf and on Your sole responsibility, not on behalf
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To apply the Apache License to your work, attach the following
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Unless required by applicable law or agreed to in writing, software
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0
solr/licenses/jaeger-core-NOTICE.txt Normal file
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1
solr/licenses/jaeger-thrift-0.35.5.jar.sha1 Normal file
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@ -0,0 +1 @@
dc4066e5b4532121b8e4d69124919376ab123940

201
solr/licenses/jaeger-thrift-LICENSE-ASL.txt Normal file
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

0
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300bfbee03c7afa77301fb0946115e400e28ae04

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

5
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Apache Thrift
Copyright (C) 2006 - 2019, The Apache Software Foundation
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

0
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1
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

0
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1
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@ -0,0 +1 @@
074b9950a587f53fbdb48c3f1f84f1ece8c10592

201
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

0
solr/licenses/opentracing-noop-NOTICE.txt Normal file
View File

1
solr/licenses/opentracing-util-0.33.0.jar.sha1 Normal file
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@ -0,0 +1 @@
132630f17e198a1748f23ce33597efdf4a807fb9

201
solr/licenses/opentracing-util-LICENSE-ASL.txt Normal file
View File

@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

0
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@ -265,7 +265,7 @@ Here is an example for configuring the default `log4j2.xml` which ships in Solr.
filePattern="${sys:solr.log.dir}/solr_metrics.log.%i" >
<PatternLayout>
<Pattern>
%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{node_name} %X{collection} %X{shard} %X{replica} %X{core}] %m%n
%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{node_name} %X{collection} %X{shard} %X{replica} %X{core} %X{trace_id}] %m%n
</Pattern>
</PatternLayout>
<Policies>

4
solr/solr-ref-guide/src/monitoring-solr.adoc
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@ -1,5 +1,5 @@
= Monitoring Solr
:page-children: metrics-reporting, metrics-history, mbean-request-handler, configuring-logging, using-jmx-with-solr, monitoring-solr-with-prometheus-and-grafana, performance-statistics-reference
:page-children: metrics-reporting, metrics-history, mbean-request-handler, configuring-logging, using-jmx-with-solr, monitoring-solr-with-prometheus-and-grafana, performance-statistics-reference, solr-tracing
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
@ -36,4 +36,6 @@ Common administrative tasks include:
<<performance-statistics-reference.adoc#performance-statistics-reference,Performance Statistics Reference>>: Additional information on statistics returned from JMX.
<<solr-tracing.adoc#solr-tracing,Distributed Solr Tracing>>: Describes how to do distributed tracing for Solr requests.

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@ -0,0 +1,87 @@
= Distributed Solr Tracing
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
Solr includes a general tracing framework based on OpenTracing that can be used to trace lifecycle of a request for performance monitoring.
Tracing data can be configured and send to arbitrary backend like Jaeger, Zipkin, Datadog, etc. For now only Jaeger is
supported out of the box.
A sampled distributed tracing query request on Jaeger looks like this:
.Tracing of a solr query
image::images/solr-tracing/query-request-tracing.png[image,width=600]
== Setup Tracer
`TracerConfigurator` is a class used for provide an instance of `io.opentracing.Tracer` based on configuration in `solr.xml`.
Like `JaegerTracerConfigurator` provide JaegerTracer instance to Solr node.
A setup of a `TracerConfigurator` looks like this
```xml
<solr>
<tracerConfig name="tracerConfig" class="org.apache.solr.jaeger.JaegerTracerConfigurator">
<str name="agentHost">localhost</str>
<int name="agentPort">5775</int>
<bool name="logSpans">true</bool>
<int name="flushInterval">1000</int>
<int name="maxQueueSize">10000</int>
</tracerConfig>
</solr>
```
If `<tracerConfig>` part is absent, `TracerConfigurator` will try to pick up the `Tracer` instance was registered in
in `io.opentracing.util.GlobalTracer`. By doing this some backend like DataDog is supported out of the box since
https://docs.datadoghq.com/tracing/setup/java/[datadog-java-agent] use Javaagent to register a `Tracer` in
`io.opentracing.util.GlobalTracer`.
=== Configuring sample rate
By default only 0.1% of requests are sampled, this ensure that tracing activities does not affect performance of a node.
The rate can be changed on the fly (without restarting Solr nodes) by setting new sample rate in cluster property. For example,
below call set sample rate to 100%
```
/admin/collections?action=CLUSTERPROP&name=propertyName&samplePercentage=100
```
== Jaeger Tracer Configurator
Module `contrib/jagertracer-configurator` provides a default implementation for setting up Jaeger Tracer.
Note that all library of jaegertracer-configurator must be included in the classpath of all nodes then Jaeger tracer can be setup in `solr.xml` like this:
```
<tracerConfig name="tracerConfig" class="org.apache.solr.jaeger.JaegerTracerConfigurator">
<str name="agentHost">localhost</str>
<int name="agentPort">5775</int>
<bool name="logSpans">true</bool>
<int name="flushInterval">1000</int>
<int name="maxQueueSize">10000</int>
</tracerConfig>
```
List of parameters for JaegerTracerConfigurator include:
|===
|Parameter|Type|Required|Default|Description
|agentHost|string|Yes||The host of Jaeger backend
|agentPort|int|Yes||The port of Jaeger port
|logsSpans|bool|No|true|Whether the tracer should also log the spans
|flushInterval|int|No|5000|The tracer's flush interval (ms)
|maxQueueSize|int|No|10000|The tracer's maximum queue size
|===
Other parameters which are not listed above can be configured using System Properties or Environment Variables. The full list are listed at https://github.com/jaegertracing/jaeger-client-java/blob/master/jaeger-core/README.md[Jaeger-README].

16
solr/solrj/src/java/org/apache/solr/client/solrj/SolrRequest.java
View File

@ -21,7 +21,10 @@ import java.io.Serializable;
import java.security.Principal;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
@ -63,6 +66,7 @@ public abstract class SolrRequest<T extends SolrResponse> implements Serializabl
private METHOD method = METHOD.GET;
private String path = null;
private Map<String,String> headers;
private ResponseParser responseParser;
private StreamingResponseCallback callback;
@ -237,4 +241,16 @@ public abstract class SolrRequest<T extends SolrResponse> implements Serializabl
public String getBasePath() {
return basePath;
}
public void addHeader(String key, String value) {
if (headers == null) {
headers = new HashMap<>();
}
headers.put(key, value);
}
public Map<String, String> getHeaders() {
if (headers == null) return null;
return Collections.unmodifiableMap(headers);
}
}

23
solr/solrj/src/java/org/apache/solr/client/solrj/impl/Http2SolrClient.java
View File

@ -31,6 +31,7 @@ import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
@ -317,10 +318,9 @@ public class Http2SolrClient extends SolrClient {
.newRequest(basePath + "update"
+ requestParams.toQueryString())
.method(HttpMethod.POST)
.header("User-Agent", HttpSolrClient.AGENT)
.header("Content-Type", contentType)
.header(HttpHeader.CONTENT_TYPE, contentType)
.content(provider);
setListeners(updateRequest, postRequest);
decorateRequest(postRequest, updateRequest);
InputStreamResponseListener responseListener = new InputStreamResponseListener();
postRequest.send(responseListener);
@ -452,16 +452,16 @@ public class Http2SolrClient extends SolrClient {
private Request makeRequest(SolrRequest solrRequest, String collection)
throws SolrServerException, IOException {
Request req = createRequest(solrRequest, collection);
decorateRequest(req, solrRequest);
return req;
}
private void decorateRequest(Request req, SolrRequest solrRequest) {
req.header(HttpHeader.ACCEPT_ENCODING, null);
setListeners(solrRequest, req);
if (solrRequest.getUserPrincipal() != null) {
req.attribute(REQ_PRINCIPAL_KEY, solrRequest.getUserPrincipal());
}
return req;
}
private void setListeners(SolrRequest solrRequest, Request req) {
setBasicAuthHeader(solrRequest, req);
for (HttpListenerFactory factory : listenerFactory) {
HttpListenerFactory.RequestResponseListener listener = factory.get();
@ -469,6 +469,13 @@ public class Http2SolrClient extends SolrClient {
req.onRequestBegin(listener);
req.onComplete(listener);
}
Map<String, String> headers = solrRequest.getHeaders();
if (headers != null) {
for (Map.Entry<String, String> entry : headers.entrySet()) {
req.header(entry.getKey(), entry.getValue());
}
}
}
private Request createRequest(SolrRequest solrRequest, String collection) throws IOException, SolrServerException {

7
solr/solrj/src/java/org/apache/solr/client/solrj/impl/HttpSolrClient.java
View File

@ -32,6 +32,7 @@ import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ExecutorService;
@ -252,6 +253,12 @@ public class HttpSolrClient extends BaseHttpSolrClient {
throws SolrServerException, IOException {
HttpRequestBase method = createMethod(request, collection);
setBasicAuthHeader(request, method);
if (request.getHeaders() != null) {
Map<String, String> headers = request.getHeaders();
for (Map.Entry<String, String> entry : headers.entrySet()) {
method.setHeader(entry.getKey(), entry.getValue());
}
}
return executeMethod(method, request.getUserPrincipal(), processor, isV2ApiRequest(request));
}

2
solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java
View File

@ -133,6 +133,7 @@ public class ZkStateReader implements SolrCloseable {
public final static String CONFIGNAME_PROP="configName";
public static final String LEGACY_CLOUD = "legacyCloud";
public static final String SAMPLE_PERCENTAGE = "samplePercentage";
/**
* @deprecated use {@link org.apache.solr.common.params.CollectionAdminParams#DEFAULTS} instead.
@ -246,6 +247,7 @@ public class ZkStateReader implements SolrCloseable {
CoreAdminParams.BACKUP_LOCATION,
DEFAULT_SHARD_PREFERENCES,
MAX_CORES_PER_NODE,
SAMPLE_PERCENTAGE,
CollectionAdminParams.DEFAULTS)));
/**

2
solr/solrj/src/test-files/log4j2.xml
View File

@ -21,7 +21,7 @@
<Console name="STDERR" target="SYSTEM_ERR">
<PatternLayout>
<Pattern>
%maxLen{%-4r %-5p (%t) [%X{node_name} %X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%notEmpty{
%maxLen{%-4r %-5p (%t) [%X{node_name} %X{collection} %X{shard} %X{replica} %X{core} %X{trace_id}] %c{1.} %m%notEmpty{
=>%ex{short}}}{10240}%n
</Pattern>
</PatternLayout>

1
solr/test-framework/ivy.xml
View File

@ -35,6 +35,7 @@
<dependency org="org.hamcrest" name="hamcrest-core" rev="${/org.hamcrest/hamcrest-core}" conf="compile;junit4-stdalone" />
<dependency org="com.carrotsearch.randomizedtesting" name="junit4-ant" rev="${/com.carrotsearch.randomizedtesting/junit4-ant}" conf="compile;junit4-stdalone" />
<dependency org="com.carrotsearch.randomizedtesting" name="randomizedtesting-runner" rev="${/com.carrotsearch.randomizedtesting/randomizedtesting-runner}" conf="compile;junit4-stdalone" />
<dependency org="io.opentracing" name="opentracing-mock" rev="${/io.opentracing/opentracing-mock}" conf="compile;junit4-stdalone"/>
<exclude org="*" ext="*" matcher="regexp" type="${ivy.exclude.types}"/>
</dependencies>

35
solr/test-framework/src/java/org/apache/solr/core/MockTracerConfigurator.java Normal file
View File

@ -0,0 +1,35 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.core;
import io.opentracing.Tracer;
import io.opentracing.mock.MockTracer;
import org.apache.solr.common.util.NamedList;
public class MockTracerConfigurator extends TracerConfigurator {
@Override
public Tracer getTracer() {
return new MockTracer();
}
@Override
public void init(NamedList args) {
}
}