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From Zoltán Zvara (JIRA) <j...@apache.org>
Subject [jira] [Updated] (YARN-5721) NPE at AMRMClientImpl.getMatchingRequests
Date Tue, 11 Oct 2016 12:49:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-5721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zoltán Zvara updated YARN-5721:
-------------------------------
    Priority: Blocker  (was: Critical)

> NPE at AMRMClientImpl.getMatchingRequests
> -----------------------------------------
>
>                 Key: YARN-5721
>                 URL: https://issues.apache.org/jira/browse/YARN-5721
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: api
>         Environment: Tested on Windows 10, in Dockerized Linux containers & Ubuntu
16.04 with Java 7, Java 8.
>            Reporter: Zoltán Zvara
>            Priority: Blocker
>
> The following NPE was thrown using a Spark 2.1.0-SNAPSHOT (as client) by changing Hadoop
dependency to the latest (by the time the ERROR has been generated).
> {{2016-10-10 11:33:53,392 ERROR yarn.ApplicationMaster: Uncaught exception: 
> java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl.getMatchingRequests(AMRMClientImpl.java:751)
> 	at org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl.getMatchingRequests(AMRMClientImpl.java:734)
> 	at org.apache.spark.deploy.yarn.YarnAllocator.getPendingAtLocation(YarnAllocator.scala:210)
> 	at org.apache.spark.deploy.yarn.YarnAllocator.getPendingAllocate(YarnAllocator.scala:203)
> 	at org.apache.spark.deploy.yarn.YarnAllocator.updateResourceRequests(YarnAllocator.scala:318)
> 	at org.apache.spark.deploy.yarn.YarnAllocator.allocateResources(YarnAllocator.scala:278)
> 	at org.apache.spark.deploy.yarn.ApplicationMaster.registerAM(ApplicationMaster.scala:350)
> 	at org.apache.spark.deploy.yarn.ApplicationMaster.runExecutorLauncher(ApplicationMaster.scala:418)
> 	at org.apache.spark.deploy.yarn.ApplicationMaster.run(ApplicationMaster.scala:250)}}
> We've also pulled the latest code (1 hour ago) from the repository, and ran a test for
{{getMatchingRequests}}. Same NPE has been encountered.
> {{getMatchingRequests}} should never throw an NPE even if it has been called right after
the client has been started.



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