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https://issues.apache.org/jira/browse/YARN-3143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306312#comment-14306312
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Hadoop QA commented on YARN-3143:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12696592/YARN-3143.001.patch
against trunk revision 5f4ef2d.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairScheduler
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/6514//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/6514//console
This message is automatically generated.
> RM Apps REST API can return NPE or entries missing id and other fields
> ----------------------------------------------------------------------
>
> Key: YARN-3143
> URL: https://issues.apache.org/jira/browse/YARN-3143
> Project: Hadoop YARN
> Issue Type: Bug
> Components: webapp
> Affects Versions: 2.5.2
> Reporter: Kendall Thrapp
> Assignee: Jason Lowe
> Attachments: YARN-3143.001.patch
>
>
> I'm seeing intermittent null pointer exceptions being returned by
> the YARN Apps REST API.
> For example:
> {code}
> http://{cluster}:{port}/ws/v1/cluster/apps?finalStatus=UNDEFINED
> {code}
> JSON Response was:
> {code}
> {"RemoteException":{"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException"}}
> {code}
> At a glance appears to be only when we query for unfinished apps (i.e.
> finalStatus=UNDEFINED).
> Possibly related, when I do get back a list of apps, sometimes one or more of
> the apps will be missing most of the fields, like id, name, user, etc., and
> the fields that are present all have zero for the value.
> For example:
> {code}
> {"progress":0.0,"clusterId":0,"applicationTags":"","startedTime":0,"finishedTime":0,"elapsedTime":0,"allocatedMB":0,"allocatedVCores":0,"runningContainers":0,"preemptedResourceMB":0,"preemptedResourceVCores":0,"numNonAMContainerPreempted":0,"numAMContainerPreempted":0}
> {code}
> Let me know if there's any other information I can provide to help debug.
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