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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14948) NPE in regionserverReport causing RS abort
Date Tue, 08 Dec 2015 03:06:11 GMT
Enis Soztutar created HBASE-14948:
-------------------------------------

             Summary: NPE in regionserverReport causing RS abort
                 Key: HBASE-14948
                 URL: https://issues.apache.org/jira/browse/HBASE-14948
             Project: HBase
          Issue Type: Bug
            Reporter: Enis Soztutar


As seen in one of the runs: 

{code}
2015-12-07 13:36:03,443 FATAL [regionserver//10.0.0.14:16020] regionserver.HRegionServer:
ABORTING region server 10.0.0.14,16020,1449495285079: Unhandled: null
java.lang.NullPointerException
  at org.apache.hadoop.hbase.regionserver.HStore.getTotalStaticIndexSize(HStore.java:2068)
  at org.apache.hadoop.hbase.regionserver.HRegionServer.createRegionLoad(HRegionServer.java:1451)
  at org.apache.hadoop.hbase.regionserver.HRegionServer.buildServerLoad(HRegionServer.java:1189)
  at org.apache.hadoop.hbase.regionserver.HRegionServer.tryRegionServerReport(HRegionServer.java:1132)
  at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:949)
  at java.lang.Thread.run(Thread.java:745)
{code}

I think there is a race between closing the region, and the region server report accessing
the region metrics for the report. 

A region was closing just before this timestamp: 
{code}
2015-12-07 13:36:03,433 DEBUG [RS_CLOSE_REGION-10.0.0.14:16020-2] handler.CloseRegionHandler:
Processing close of IntegrationTestRegionReplicaReplication,9eb851cf,1449493871303.6a0b324df1d9c2eba5fa700c2e60d5e4.
2015-12-07 13:36:03,435 DEBUG [RS_CLOSE_REGION-10.0.0.14:16020-2] regionserver.HRegion: Closing
IntegrationTestRegionReplicaReplication,9eb851cf,1449493871303.6a0b324df1d9c2eba5fa700c2e60d5e4.:
disabling compactions & flushes
2015-12-07 13:36:03,435 DEBUG [RS_CLOSE_REGION-10.0.0.14:16020-2] regionserver.HRegion: Updates
disabled for region IntegrationTestRegionReplicaReplication,9eb851cf,1449493871303.6a0b324df1d9c2eba5fa700c2e60d5e4.
{code}




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