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https://issues.apache.org/jira/browse/HBASE-21422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671542#comment-16671542
]
Duo Zhang commented on HBASE-21422:
-----------------------------------
OK the problem is that, we want the testRecoveryAndDoubleExecution to quit when
reaching state id 9, which is MERGE_TABLE_REGIONS_POST_MERGE_COMMIT_OPERATION,
but in the failing run, we have finished the procedure so we will get the
EOF_STATE and fail. Let me see why...
> NPE in TestMergeTableRegionsProcedure.testMergeWithoutPONR
> ----------------------------------------------------------
>
> Key: HBASE-21422
> URL: https://issues.apache.org/jira/browse/HBASE-21422
> Project: HBase
> Issue Type: Bug
> Components: proc-v2
> Reporter: Duo Zhang
> Priority: Major
>
> {noformat}
> 2018-10-31 16:22:01,302 ERROR [Time-limited test]
> assignment.TestMergeTableRegionsProcedure(305): error!
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.master.assignment.MergeTableRegionsProcedure.getStateId(MergeTableRegionsProcedure.java:386)
> at
> org.apache.hadoop.hbase.master.assignment.MergeTableRegionsProcedure.getStateId(MergeTableRegionsProcedure.java:84)
> at
> org.apache.hadoop.hbase.procedure2.StateMachineProcedure.getCurrentStateId(StateMachineProcedure.java:276)
> at
> org.apache.hadoop.hbase.master.procedure.MasterProcedureTestingUtility.testRecoveryAndDoubleExecution(MasterProcedureTestingUtility.java:414)
> at
> org.apache.hadoop.hbase.master.assignment.TestMergeTableRegionsProcedure.testMergeWithoutPONR(TestMergeTableRegionsProcedure.java:296)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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