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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6515) Fix warnings from Spotbugs in hadoop-yarn-server-nodemanager
Date Wed, 02 Aug 2017 07:29:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110462#comment-16110462
] 

Hadoop QA commented on YARN-6515:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  5s{color} | {color:red}
YARN-6515 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute
for help. {color} |
\\
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|| Subsystem || Report/Notes ||
| JIRA Issue | YARN-6515 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12864692/YARN-6515.001.patch
|
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/16665/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT   http://yetus.apache.org |


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> Fix warnings from Spotbugs in hadoop-yarn-server-nodemanager
> ------------------------------------------------------------
>
>                 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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