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https://issues.apache.org/jira/browse/YARN-9096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16903702#comment-16903702
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Hudson commented on YARN-9096:
------------------------------
FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #17071 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17071/])
YARN-9096: Some GpuResourcePlugin and ResourcePluginManager methods are
(snemeth: rev 742e30b47381ad63e2b2fe63738cd0fe6cbce106)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/resourceplugin/gpu/GpuResourcePlugin.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/resourceplugin/ResourcePluginManager.java
> Some GpuResourcePlugin and ResourcePluginManager methods are synchronized
> unnecessarily
> ---------------------------------------------------------------------------------------
>
> Key: YARN-9096
> URL: https://issues.apache.org/jira/browse/YARN-9096
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Gergely Pollak
> Priority: Major
> Fix For: 3.3.0, 3.2.1, 3.1.3
>
> Attachments: YARN-9096.001.patch, YARN-9096.002.patch,
> YARN-9096.002.patch
>
>
> These methods are not used concurrently, they are part of the initialization
> code of NM that happens from one thread.
> This is the list of the call hierarchies:
> 1. GpuResourcePlugin.initialize + ResourcePluginManager.initialize
>
> {code:java}
> GpuResourcePlugin.initialize(Context)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin.gpu)
> ResourcePluginManager.initialize(Context)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin)
> NodeManager.serviceInit(Configuration)
> (org.apache.hadoop.yarn.server.nodemanager){code}
>
>
> 2. GpuResourcePlugin.createResourceHandler:
>
> {code:java}
> GpuResourcePlugin.createResourceHandler(Context, CGroupsHandler,
> PrivilegedOperationExecutor)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin.gpu)
> ResourceHandlerModule.addHandlersFromConfiguredResourcePlugins(List,
> Configuration, Context)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources)
> ResourceHandlerModule.initializeConfiguredResourceHandlerChain(Configuration,
> Context)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources)
> ResourceHandlerModule.getConfiguredResourceHandlerChain(Configuration,
> Context)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources)
> ContainerScheduler.serviceInit(Configuration)
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.scheduler)
> LinuxContainerExecutor.init(Context)
> (org.apache.hadoop.yarn.server.nodemanager)
> {code}
>
> 3. GpuResourcePlugin.getNodeResourceHandlerInstance:
>
> {code:java}
> GpuResourcePlugin.getNodeResourceHandlerInstance()
> (org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin.gpu)
> NodeStatusUpdaterImpl.updateConfiguredResourcesViaPlugins(Resource)(2 usages)
> (org.apache.hadoop.yarn.server.nodemanager)
> NodeStatusUpdaterImpl.serviceInit(Configuration)
> (org.apache.hadoop.yarn.server.nodemanager)
> {code}
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