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https://issues.apache.org/jira/browse/HBASE-10445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13887100#comment-13887100
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Ted Yu commented on HBASE-10445:
--------------------------------
I reproduced the test failure just now - with distributed log replay on.
The only server shutdown by TestRegionObserverInterface#testRecovery was still
recovering, leading to null Result for the get() call:
{code}
2014-01-30 21:01:50,601 ERROR [Priority.RpcServer.handler=2,port=58244]
coprocessor.CoprocessorHost(760): The coprocessor
org.apache.hadoop.hbase.coprocessor.SimpleRegionObserver threw an unexpected
exception
java.lang.AssertionError: region hbase:meta,,1.1588230740 row
TestTable.testRecovery,testrow,99999999999999
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertNotNull(Assert.java:621)
at
org.apache.hadoop.hbase.coprocessor.SimpleRegionObserver.postGetClosestRowBefore(SimpleRegionObserver.java:512)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postGetClosestRowBefore(RegionCoprocessorHost.java:970)
at
org.apache.hadoop.hbase.regionserver.HRegion.getClosestRowBefore(HRegion.java:1785)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2819)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:28450)
{code}
> TestRegionObserverInterface occasionally times out
> --------------------------------------------------
>
> Key: HBASE-10445
> URL: https://issues.apache.org/jira/browse/HBASE-10445
> Project: HBase
> Issue Type: Test
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 10445-v1.txt, TestRegionObserverInterface-output-2.txt
>
>
> TestRegionObserverInterface occasionally times out
> Running in a loop, it timed out at 9th iteration twice.
> The test starts a cluster with 1 region server. If this server goes down, the
> following message would be repeatedly printed:
> {code}
> 2014-01-30 00:35:16,144 WARN [MASTER_META_SERVER_OPERATIONS-kiyo:42930-0]
> master.AssignmentManager(2140): Can't move 1588230740, there is no
> destination server available.
> 2014-01-30 00:35:16,144 WARN [MASTER_META_SERVER_OPERATIONS-kiyo:42930-0]
> master.AssignmentManager(1863): Unable to determine a plan to assign {ENCODED
> => 1588230740, NAME => 'hbase:meta,,1', STARTKEY => '', ENDKEY => ''}
> {code}
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