Jay Modi 2fa6448a15
System index reads in separate threadpool (#60927)
This commit introduces a new thread pool, `system_read`, which is
intended for use by system indices for all read operations (get and
search). The `system_read` pool is a fixed thread pool with a maximum
number of threads equal to lesser of half of the available processors
or 5. Given the combination of both get and read operations in this
thread pool, the queue size has been set to 2000. The motivation for
this change is to allow system read operations to be serviced in spite
of the number of user searches.

In order to avoid a significant performance hit due to pattern matching
on all search requests, a new metadata flag is added to mark indices
as system or non-system. Previously created system indices will have
flag added to their metadata upon upgrade to a version with this
capability.

Additionally, this change also introduces a new class, `SystemIndices`,
which encapsulates logic around system indices. Currently, the class
provides a method to check if an index is a system index and a method
to find a matching index descriptor given the name of an index.

Relates #50251
Relates #37867
Backport of #57936
2020-08-11 12:16:34 -06:00

113 lines
4.6 KiB
Groovy

/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
import org.elasticsearch.gradle.Version
import org.elasticsearch.gradle.info.BuildParams
import org.elasticsearch.gradle.testclusters.StandaloneRestIntegTestTask
apply plugin: 'elasticsearch.testclusters'
apply plugin: 'elasticsearch.standalone-test'
apply from : "$rootDir/gradle/bwc-test.gradle"
apply plugin: 'elasticsearch.rest-resources'
for (Version bwcVersion : BuildParams.bwcVersions.wireCompatible) {
/*
* The goal here is to:
* <ul>
* <li>start three nodes on the old version
* <li>run tests with systemProperty 'tests.rest.suite', 'old_cluster'
* <li>upgrade one node
* <li>run tests with systemProperty 'tests.rest.suite', 'mixed_cluster'
* <li>upgrade one more node
* <li>run tests with systemProperty 'tests.rest.suite', 'mixed_cluster' again
* <li>updgrade the last node
* <li>run tests with systemProperty 'tests.rest.suite', 'upgraded_cluster'
* </ul>
*/
String baseName = "v${bwcVersion}"
String bwcVersionStr = "${bwcVersion}"
testClusters {
"${baseName}" {
versions = [bwcVersionStr, project.version]
numberOfNodes = 3
setting 'repositories.url.allowed_urls', 'http://snapshot.test*'
setting 'path.repo', "${buildDir}/cluster/shared/repo/${baseName}"
setting 'http.content_type.required', 'true'
}
}
tasks.register("${baseName}#oldClusterTest", StandaloneRestIntegTestTask) {
dependsOn processTestResources
useCluster testClusters."${baseName}"
mustRunAfter(precommit)
doFirst {
project.delete("${buildDir}/cluster/shared/repo/${baseName}")
}
systemProperty 'tests.upgrade_from_version', bwcVersionStr
systemProperty 'tests.rest.suite', 'old_cluster'
nonInputProperties.systemProperty('tests.rest.cluster', "${-> testClusters."${baseName}".allHttpSocketURI.join(",")}")
nonInputProperties.systemProperty('tests.clustername', "${-> testClusters."${baseName}".getName()}")
}
tasks.register("${baseName}#oneThirdUpgradedTest", StandaloneRestIntegTestTask) {
dependsOn "${baseName}#oldClusterTest"
useCluster testClusters."${baseName}"
doFirst {
testClusters."${baseName}".nextNodeToNextVersion()
}
systemProperty 'tests.rest.suite', 'mixed_cluster'
systemProperty 'tests.upgrade_from_version', bwcVersionStr
systemProperty 'tests.first_round', 'true'
nonInputProperties.systemProperty('tests.rest.cluster', "${-> testClusters."${baseName}".allHttpSocketURI.join(",")}")
nonInputProperties.systemProperty('tests.clustername', "${-> testClusters."${baseName}".getName()}")
}
tasks.register("${baseName}#twoThirdsUpgradedTest", StandaloneRestIntegTestTask) {
dependsOn "${baseName}#oneThirdUpgradedTest"
useCluster testClusters."${baseName}"
doFirst {
testClusters."${baseName}".nextNodeToNextVersion()
}
systemProperty 'tests.rest.suite', 'mixed_cluster'
systemProperty 'tests.upgrade_from_version', bwcVersionStr
systemProperty 'tests.first_round', 'false'
nonInputProperties.systemProperty('tests.rest.cluster', "${-> testClusters."${baseName}".allHttpSocketURI.join(",")}")
nonInputProperties.systemProperty('tests.clustername', "${-> testClusters."${baseName}".getName()}")
}
tasks.register("${baseName}#upgradedClusterTest", StandaloneRestIntegTestTask) {
dependsOn "${baseName}#twoThirdsUpgradedTest"
doFirst {
testClusters."${baseName}".nextNodeToNextVersion()
}
useCluster testClusters."${baseName}"
systemProperty 'tests.rest.suite', 'upgraded_cluster'
systemProperty 'tests.upgrade_from_version', bwcVersionStr
nonInputProperties.systemProperty('tests.rest.cluster', "${-> testClusters."${baseName}".allHttpSocketURI.join(",")}")
nonInputProperties.systemProperty('tests.clustername', "${-> testClusters."${baseName}".getName()}")
}
tasks.register(bwcTaskName(bwcVersion)) {
dependsOn tasks.named("${baseName}#upgradedClusterTest")
}
}