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https://issues.apache.org/jira/browse/YARN-6515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980747#comment-15980747
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Naganarasimha G R commented on YARN-6515:
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Hi [~cheersyang],
bq. I have a patch for all components, but I can split them up to fix rest of
yarn components if you like
Agree you can split and hope you dont mind as i have already raised and fixed
for NM, As I was mentioning earlier its better to fix per project, as the
reports are generated per project.
bq. I personally have no problem with that. But since there is an umbrella
JIRA, could you please move this one under that?
These find bugs jira should have been under YARN jira, so IIUC we can not make
a YARN jira a sub task under HADOOP Jira. If possible i am fine with it, else
we can make this jira related to HADOOP-14336 . Thoughts ?
> Findbugs issues in Nodemanager project
> --------------------------------------
>
> Key: YARN-6515
> URL: https://issues.apache.org/jira/browse/YARN-6515
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Reporter: Naganarasimha G R
> Assignee: Naganarasimha G R
> Attachments: YARN-6515.001.patch
>
>
> 5 find bugs issue was reported NM project as part of the YARN-4166 [build|
> https://builds.apache.org/job/PreCommit-YARN-Build/15694/artifact/patchprocess/branch-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-nodemanager-warnings.html]
> Issue 1:
>
> org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainerMetrics.usageMetrics
> is a mutable collection which should be package protected
> Bug type MS_MUTABLE_COLLECTION_PKGPROTECT (click for details)
> In class
> org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainerMetrics
> Field
> org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainerMetrics.usageMetrics
> At ContainerMetrics.java:\[line 134\]
> Issue 2:
>
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer.createStatus()
> makes inefficient use of keySet iterator instead of entrySet iterator
> Bug type WMI_WRONG_MAP_ITERATOR (click for details)
> In class
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer
> In method
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer.createStatus()
> Field
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer.pendingResources
> At ContainerLocalizer.java:\[line 334\]
> Issue 3:
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.removeVeryOldStoppedContainersFromCache()
> makes inefficient use of keySet iterator instead of entrySet iterator
> Bug type WMI_WRONG_MAP_ITERATOR (click for details)
> In class org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl
> In method
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.removeVeryOldStoppedContainersFromCache()
> Field
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.recentlyStoppedContainers
> At NodeStatusUpdaterImpl.java:\[line 721\]
> Issue 4:
> Hard coded reference to an absolute pathname in
> org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime.launchContainer(ContainerRuntimeContext)
> Bug type DMI_HARDCODED_ABSOLUTE_FILENAME (click for details)
> In class
> org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime
> In method
> org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime.launchContainer(ContainerRuntimeContext)
> File name /sys/fs/cgroup
> At DockerLinuxContainerRuntime.java:\[line 455\]
> Useless object stored in variable removedNullContainers of method
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.removeOrTrackCompletedContainersFromContext(List)
> Bug type UC_USELESS_OBJECT (click for details)
> In class org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl
> In method
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl.removeOrTrackCompletedContainersFromContext(List)
> Value removedNullContainers
> Type java.util.HashSet
> At NodeStatusUpdaterImpl.java:\[line 644\]
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