HADOOP-10949. metrics2 sink plugin for Apache Kafka (Babak Behzad via aw)
This commit is contained in:
parent
2fc2b50534
commit
b59e434116
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@ -56,6 +56,8 @@ Trunk (Unreleased)
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HADOOP-10854. unit tests for the shell scripts (aw)
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HADOOP-10949. metrics2 sink plugin for Apache Kafka (Babak Behzad via aw)
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IMPROVEMENTS
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HADOOP-11203. Allow ditscp to accept bandwitdh in fraction MegaBytes
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@ -45,8 +45,9 @@
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<!-- Version number for xerces used by JDiff -->
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<xerces.jdiff.version>2.11.0</xerces.jdiff.version>
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<hadoop.assemblies.version>${project.version}</hadoop.assemblies.version>
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<kafka.version>0.8.2.1</kafka.version>
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<hadoop.assemblies.version>${project.version}</hadoop.assemblies.version>
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<commons-daemon.version>1.0.13</commons-daemon.version>
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<test.build.dir>${project.build.directory}/test-dir</test.build.dir>
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@ -0,0 +1,129 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. See accompanying LICENSE file.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.apache.hadoop</groupId>
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<artifactId>hadoop-project</artifactId>
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<version>3.0.0-SNAPSHOT</version>
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<relativePath>../../hadoop-project</relativePath>
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</parent>
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<artifactId>hadoop-kafka</artifactId>
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<version>3.0.0-SNAPSHOT</version>
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<name>Apache Hadoop Kafka Library support</name>
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<description>
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This module contains code to support integration with Kafka.
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It also declares the dependencies needed to work with Kafka.
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</description>
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<packaging>jar</packaging>
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<properties>
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<file.encoding>UTF-8</file.encoding>
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<downloadSources>true</downloadSources>
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</properties>
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<profiles>
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<profile>
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<id>tests-off</id>
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<activation>
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<file>
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<missing>src/test/resources/auth-keys.xml</missing>
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</file>
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</activation>
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<properties>
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<maven.test.skip>true</maven.test.skip>
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</properties>
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</profile>
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<profile>
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<id>tests-on</id>
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<activation>
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<file>
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<exists>src/test/resources/auth-keys.xml</exists>
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</file>
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</activation>
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<properties>
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<maven.test.skip>false</maven.test.skip>
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</properties>
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</profile>
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</profiles>
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<build>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>findbugs-maven-plugin</artifactId>
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<configuration>
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<findbugsXmlOutput>true</findbugsXmlOutput>
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<xmlOutput>true</xmlOutput>
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<excludeFilterFile>${basedir}/dev-support/findbugs-exclude.xml
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</excludeFilterFile>
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<effort>Max</effort>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-project-info-reports-plugin</artifactId>
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<configuration>
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<dependencyDetailsEnabled>false</dependencyDetailsEnabled>
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<dependencyLocationsEnabled>false</dependencyLocationsEnabled>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<configuration>
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<forkedProcessTimeoutInSeconds>3600</forkedProcessTimeoutInSeconds>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
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<groupId>org.apache.hadoop</groupId>
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<artifactId>hadoop-common</artifactId>
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<scope>compile</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.hadoop</groupId>
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<artifactId>hadoop-common</artifactId>
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<scope>test</scope>
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<type>test-jar</type>
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</dependency>
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<!-- see ../../hadoop-project/pom.xml for versions -->
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<dependency>
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<groupId>org.apache.kafka</groupId>
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<artifactId>kafka_2.10</artifactId>
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<version>${kafka.version}</version>
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<exclusions>
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<exclusion>
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<groupId>org.xerial.snappy</groupId>
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<artifactId>snappy-java</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,193 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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* <p/>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p/>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.metrics2.sink;
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import com.google.common.base.Strings;
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import org.apache.kafka.clients.producer.Producer;
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import org.apache.kafka.clients.producer.KafkaProducer;
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import org.apache.commons.configuration.SubsetConfiguration;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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import org.apache.hadoop.metrics2.AbstractMetric;
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import org.apache.hadoop.metrics2.MetricsException;
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import org.apache.hadoop.metrics2.MetricsRecord;
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import org.apache.hadoop.metrics2.MetricsSink;
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import org.apache.hadoop.metrics2.MetricsTag;
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import org.apache.kafka.clients.producer.ProducerRecord;
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import org.apache.kafka.clients.producer.RecordMetadata;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.Closeable;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.nio.charset.Charset;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Properties;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.Future;
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/**
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* A metrics sink that writes to a Kafka broker. This requires you to configure
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* a broker_list and a topic in the metrics2 configuration file. The broker_list
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* must contain a comma-separated list of kafka broker host and ports. The topic
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* will contain only one topic.
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*/
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@InterfaceAudience.Public
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@InterfaceStability.Evolving
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public class KafkaSink implements MetricsSink, Closeable {
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private static final Logger LOG = LoggerFactory.getLogger(KafkaSink.class);
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public static final String BROKER_LIST = "broker_list";
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public static final String TOPIC = "topic";
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private String hostname = null;
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private String brokerList = null;
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private String topic = null;
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private Producer<Integer, byte[]> producer = null;
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public void setProducer(Producer<Integer, byte[]> p) {
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this.producer = p;
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}
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@Override
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public void init(SubsetConfiguration conf) {
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// Get Kafka broker configuration.
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Properties props = new Properties();
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brokerList = conf.getString(BROKER_LIST);
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if (LOG.isDebugEnabled()) {
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LOG.debug("Broker list " + brokerList);
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}
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props.put("bootstrap.servers", brokerList);
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if (LOG.isDebugEnabled()) {
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LOG.debug("Kafka brokers: " + brokerList);
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}
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// Get Kafka topic configuration.
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topic = conf.getString(TOPIC);
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if (LOG.isDebugEnabled()) {
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LOG.debug("Kafka topic " + topic);
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}
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if (Strings.isNullOrEmpty(topic)) {
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throw new MetricsException("Kafka topic can not be null");
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}
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// Set the rest of Kafka configuration.
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props.put("key.serializer",
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"org.apache.kafka.common.serialization.ByteArraySerializer");
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props.put("value.serializer",
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"org.apache.kafka.common.serialization.ByteArraySerializer");
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props.put("request.required.acks", "0");
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// Set the hostname once and use it in every message.
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hostname = "null";
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try {
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hostname = InetAddress.getLocalHost().getHostName();
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} catch (Exception e) {
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LOG.warn("Error getting Hostname, going to continue");
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}
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try {
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// Create the producer object.
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producer = new KafkaProducer<Integer, byte[]>(props);
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} catch (Exception e) {
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throw new MetricsException("Error creating Producer, " + brokerList, e);
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}
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}
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@Override
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public void putMetrics(MetricsRecord record) {
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if (producer == null) {
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throw new MetricsException("Producer in KafkaSink is null!");
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}
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// Create the json object.
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StringBuilder jsonLines = new StringBuilder();
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Long timestamp = record.timestamp();
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Date currDate = new Date(timestamp);
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
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SimpleDateFormat timeFormat = new SimpleDateFormat("hh:mm:ss");
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String date = dateFormat.format(currDate);
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String time = timeFormat.format(currDate);
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// Collect datapoints and populate the json object.
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jsonLines.append("{\"hostname\": \"" + hostname);
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jsonLines.append("\", \"timestamp\": " + timestamp);
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jsonLines.append(", \"date\": \"" + date);
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jsonLines.append("\",\"time\": \"" + time);
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jsonLines.append("\",\"name\": \"" + record.name() + "\" ");
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for (MetricsTag tag : record.tags()) {
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jsonLines.append(
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", \"" + tag.name().toString().replaceAll("[\\p{Cc}]", "") + "\": ");
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jsonLines.append(" \"" + tag.value().toString() + "\"");
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}
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for (AbstractMetric metric : record.metrics()) {
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jsonLines.append(", \""
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+ metric.name().toString().replaceAll("[\\p{Cc}]", "") + "\": ");
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jsonLines.append(" \"" + metric.value().toString() + "\"");
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}
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jsonLines.append("}");
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LOG.debug("kafka message: " + jsonLines.toString());
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// Create the record to be sent from the json.
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ProducerRecord<Integer, byte[]> data = new ProducerRecord<Integer, byte[]>(
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topic, jsonLines.toString().getBytes(Charset.forName("UTF-8")));
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// Send the data to the Kafka broker. Here is an example of this data:
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// {"hostname": "...", "timestamp": 1436913651516,
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// "date": "2015-6-14","time": "22:40:51","context": "yarn","name":
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// "QueueMetrics, "running_0": "1", "running_60": "0", "running_300": "0",
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// "running_1440": "0", "AppsSubmitted": "1", "AppsRunning": "1",
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// "AppsPending": "0", "AppsCompleted": "0", "AppsKilled": "0",
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// "AppsFailed": "0", "AllocatedMB": "134656", "AllocatedVCores": "132",
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// "AllocatedContainers": "132", "AggregateContainersAllocated": "132",
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// "AggregateContainersReleased": "0", "AvailableMB": "0",
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// "AvailableVCores": "0", "PendingMB": "275456", "PendingVCores": "269",
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// "PendingContainers": "269", "ReservedMB": "0", "ReservedVCores": "0",
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// "ReservedContainers": "0", "ActiveUsers": "1", "ActiveApplications": "1"}
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Future<RecordMetadata> future = producer.send(data);
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jsonLines.setLength(0);
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try {
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future.get();
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} catch (InterruptedException e) {
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throw new MetricsException("Error sending data", e);
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} catch (ExecutionException e) {
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throw new MetricsException("Error sending data", e);
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}
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}
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@Override
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public void flush() {
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LOG.debug("Kafka seems not to have any flush() mechanism!");
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}
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@Override
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public void close() throws IOException {
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// Close the producer and set it to null.
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try {
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producer.close();
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} catch (RuntimeException e) {
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throw new MetricsException("Error closing producer", e);
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} finally {
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producer = null;
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}
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}
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}
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@ -0,0 +1,184 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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||||
* or more contributor license agreements. See the NOTICE file
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||||
* 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.
|
||||
*/
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package org.apache.hadoop.metrics2.impl;
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import com.google.common.base.Objects;
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import com.google.common.collect.Lists;
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import org.apache.commons.configuration.SubsetConfiguration;
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import org.apache.hadoop.metrics2.AbstractMetric;
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import org.apache.hadoop.metrics2.MetricType;
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import org.apache.hadoop.metrics2.MetricsInfo;
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import org.apache.hadoop.metrics2.MetricsRecord;
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import org.apache.hadoop.metrics2.MetricsTag;
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import org.apache.hadoop.metrics2.MetricsVisitor;
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import org.apache.hadoop.metrics2.sink.KafkaSink;
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import org.apache.kafka.clients.producer.KafkaProducer;
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import org.apache.kafka.clients.producer.Producer;
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import org.apache.kafka.clients.producer.ProducerRecord;
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import org.apache.kafka.clients.producer.RecordMetadata;
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import org.junit.Test;
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import org.mockito.ArgumentCaptor;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.net.InetAddress;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.concurrent.Future;
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import static org.junit.Assert.assertEquals;
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import static org.mockito.Matchers.anyObject;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.verify;
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import static org.mockito.Mockito.when;
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/**
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* This tests that the KafkaSink properly formats the Kafka message.
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*/
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public class TestKafkaMetrics {
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private static final Logger LOG =
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LoggerFactory.getLogger(TestKafkaMetrics.class);
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private KafkaSink kafkaSink;
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enum KafkaMetricsInfo implements MetricsInfo {
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KafkaMetrics("Kafka related metrics etc."), KafkaCounter(
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"Kafka counter."), KafkaTag("Kafka tag.");
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// metrics
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private final String desc;
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KafkaMetricsInfo(String desc) {
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this.desc = desc;
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}
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@Override
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public String description() {
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return desc;
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}
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||||
@Override
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||||
public String toString() {
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return Objects.toStringHelper(this).add("name", name())
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.add("description", desc).toString();
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||||
}
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||||
}
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@Test
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@SuppressWarnings({ "unchecked", "rawtypes" })
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public void testPutMetrics() throws Exception {
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// Create a record by mocking MetricsRecord class.
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MetricsRecord record = mock(MetricsRecord.class);
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when(record.tags()).thenReturn(Lists
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.newArrayList(new MetricsTag(KafkaMetricsInfo.KafkaTag, "test_tag")));
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when(record.timestamp()).thenReturn(System.currentTimeMillis());
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// Create a metric using AbstractMetric class.
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AbstractMetric metric = new AbstractMetric(KafkaMetricsInfo.KafkaCounter) {
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@Override
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||||
public Number value() {
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||||
return new Integer(123);
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||||
}
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||||
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||||
@Override
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||||
public MetricType type() {
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||||
return null;
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||||
}
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||||
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||||
@Override
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||||
public void visit(MetricsVisitor visitor) {
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||||
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||||
}
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};
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// Create a list of metrics.
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||||
Iterable<AbstractMetric> metrics = Lists.newArrayList(metric);
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when(record.name()).thenReturn("Kafka record name");
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when(record.metrics()).thenReturn(metrics);
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SubsetConfiguration conf = mock(SubsetConfiguration.class);
|
||||
when(conf.getString(KafkaSink.BROKER_LIST)).thenReturn("localhost:9092");
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String topic = "myTestKafkaTopic";
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||||
when(conf.getString(KafkaSink.TOPIC)).thenReturn(topic);
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||||
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||||
// Create the KafkaSink object and initialize it.
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||||
kafkaSink = new KafkaSink();
|
||||
kafkaSink.init(conf);
|
||||
|
||||
// Create a mock KafkaProducer as a producer for KafkaSink.
|
||||
Producer<Integer, byte[]> mockProducer = mock(KafkaProducer.class);
|
||||
kafkaSink.setProducer(mockProducer);
|
||||
|
||||
// Create the json object from the record.
|
||||
StringBuilder jsonLines = recordToJson(record);
|
||||
if (LOG.isDebugEnabled()) {
|
||||
LOG.debug("kafka message: " + jsonLines.toString());
|
||||
}
|
||||
|
||||
// Send the record and store the result in a mock Future.
|
||||
Future<RecordMetadata> f = mock(Future.class);
|
||||
when(mockProducer.send((ProducerRecord) anyObject())).thenReturn(f);
|
||||
kafkaSink.putMetrics(record);
|
||||
|
||||
// Get the argument and verity it.
|
||||
ArgumentCaptor<ProducerRecord> argument =
|
||||
ArgumentCaptor.forClass(ProducerRecord.class);
|
||||
verify(mockProducer).send(argument.capture());
|
||||
|
||||
// Compare the received data with the original one.
|
||||
ProducerRecord<Integer, byte[]> data = (argument.getValue());
|
||||
String jsonResult = new String(data.value());
|
||||
if (LOG.isDebugEnabled()) {
|
||||
LOG.debug("kafka result: " + jsonResult);
|
||||
}
|
||||
assertEquals(jsonLines.toString(), jsonResult);
|
||||
}
|
||||
|
||||
StringBuilder recordToJson(MetricsRecord record) {
|
||||
// Create a json object from a metrics record.
|
||||
StringBuilder jsonLines = new StringBuilder();
|
||||
Long timestamp = record.timestamp();
|
||||
Date currDate = new Date(timestamp);
|
||||
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
|
||||
String date = dateFormat.format(currDate);
|
||||
SimpleDateFormat timeFormat = new SimpleDateFormat("hh:mm:ss");
|
||||
String time = timeFormat.format(currDate);
|
||||
String hostname = new String("null");
|
||||
try {
|
||||
hostname = InetAddress.getLocalHost().getHostName();
|
||||
} catch (Exception e) {
|
||||
LOG.warn("Error getting Hostname, going to continue");
|
||||
}
|
||||
jsonLines.append("{\"hostname\": \"" + hostname);
|
||||
jsonLines.append("\", \"timestamp\": " + timestamp);
|
||||
jsonLines.append(", \"date\": \"" + date);
|
||||
jsonLines.append("\",\"time\": \"" + time);
|
||||
jsonLines.append("\",\"name\": \"" + record.name() + "\" ");
|
||||
for (MetricsTag tag : record.tags()) {
|
||||
jsonLines.append(
|
||||
", \"" + tag.name().toString().replaceAll("[\\p{Cc}]", "") + "\": ");
|
||||
jsonLines.append(" \"" + tag.value().toString() + "\"");
|
||||
}
|
||||
for (AbstractMetric m : record.metrics()) {
|
||||
jsonLines.append(
|
||||
", \"" + m.name().toString().replaceAll("[\\p{Cc}]", "") + "\": ");
|
||||
jsonLines.append(" \"" + m.value().toString() + "\"");
|
||||
}
|
||||
jsonLines.append("}");
|
||||
return jsonLines;
|
||||
}
|
||||
}
|
|
@ -46,6 +46,7 @@
|
|||
<module>hadoop-sls</module>
|
||||
<module>hadoop-azure</module>
|
||||
<module>hadoop-aws</module>
|
||||
<module>hadoop-kafka</module>
|
||||
</modules>
|
||||
|
||||
<build>
|
||||
|
|
Loading…
Reference in New Issue