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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6213) NullPointerException caused by job history server addr not resolvable
Date Sat, 21 Mar 2015 21:23:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14373028#comment-14373028
] 

Hudson commented on MAPREDUCE-6213:
-----------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #7394 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/7394/])
MAPREDUCE-6213. NullPointerException caused by job history server addr not resolvable. Contributed
by Peng Zhang. (harsh: rev e1e09052e861926112493d6041aae01ab594b547)
* hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRWebAppUtil.java
* hadoop-mapreduce-project/CHANGES.txt


> NullPointerException caused by job history server addr not resolvable
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6213
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6213
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster
>    Affects Versions: 2.6.0
>            Reporter: Peng Zhang
>            Assignee: Peng Zhang
>            Priority: Minor
>             Fix For: 2.8.0
>
>         Attachments: MAPREDUCE-6213.patch
>
>
> When DNS failed for a time, all MapReduce jobs which completed during that time got failed.
Log as below:
> {noformat}
> 2015-01-08 01:26:44,968 ERROR [Thread-856] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator:
Exception while unregistering 
> java.lang.NullPointerException
>     at org.apache.hadoop.mapreduce.v2.util.MRWebAppUtil.getApplicationWebURLOnJHSWithoutScheme(MRWebAppUtil.java:135)
>     at org.apache.hadoop.mapreduce.v2.util.MRWebAppUtil.getApplicationWebURLOnJHSWithScheme(MRWebAppUtil.java:150)
>     at org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator.doUnregistration(RMCommunicator.java:212)
>     at org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator.unregister(RMCommunicator.java:182)
>     at org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator.serviceStop(RMCommunicator.java:255)
>     at org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.serviceStop(RMContainerAllocator.java:257)
>     at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>     at org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
>     at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$ContainerAllocatorRouter.serviceStop(MRAppMaster.java:823)
>     at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>     at org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
>     at org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:80)
>     at org.apache.hadoop.service.CompositeService.stop(CompositeService.java:157)
>     at org.apache.hadoop.service.CompositeService.serviceStop(CompositeService.java:131)
>     at org.apache.hadoop.mapreduce.v2.app.MRAppMaster.serviceStop(MRAppMaster.java:1471)
>     at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>     at org.apache.hadoop.mapreduce.v2.app.MRAppMaster.stop(MRAppMaster.java:1085)
>     at org.apache.hadoop.mapreduce.v2.app.MRAppMaster.shutDownJob(MRAppMaster.java:554)
>     at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobFinishEventHandler$1.run(MRAppMaster.java:605)
> {noformat}



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