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Date: Thu, 17 Aug 2017 06:04:00 +0000 (UTC)
From: "Rohith Sharma K S (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13095239.1502949831000.51597.1502949840157@Atlassian.JIRA>
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Subject: [jira] [Created] (YARN-7032) [ATSv2] NPE while starting hbase
 co-processor
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archived-at: Thu, 17 Aug 2017 06:04:10 -0000

Rohith Sharma K S created YARN-7032:
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             Summary: [ATSv2] NPE while starting hbase co-processor
                 Key: YARN-7032
                 URL: https://issues.apache.org/jira/browse/YARN-7032
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Rohith Sharma K S


It is seen randomly that hbase co-processor fails to start with NPE. But again starting RegionServer, able to succeed in starting RS. 
{noformat}
2017-08-17 05:53:13,535 ERROR [RpcServer.FifoWFPBQ.priority.handler=18,queue=0,port=16020] coprocessor.CoprocessorHost: The coprocessor org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowRunCoprocessor threw java.lang.NullPointerException
java.lang.NullPointerException
        at org.apache.hadoop.hbase.Tag.fromList(Tag.java:187)
        at org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowRunCoprocessor.prePut(FlowRunCoprocessor.java:102)
        at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$30.call(RegionCoprocessorHost.java:885)
{noformat}


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