[
https://issues.apache.org/jira/browse/HBASE-21422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16672489#comment-16672489
]
Duo Zhang commented on HBASE-21422:
-----------------------------------
OK the problem is that, in
MasterProcedureTestingUtility.restartMasterProcedureExecutor, in the last step
we will call AssignmentManager.joinCluster to finish the initialization of
AssignmentManager, and in this method we need to scan meta to load all the
regions. If the crashed RS carries meta, and SCP fails before making meta
online, then we will fail in the joinCluster method and also fail the whole UT.
Let me see how to deal with this.
> NPE in TestMergeTableRegionsProcedure.testMergeWithoutPONR
> ----------------------------------------------------------
>
> Key: HBASE-21422
> URL: https://issues.apache.org/jira/browse/HBASE-21422
> Project: HBase
> Issue Type: Bug
> Components: proc-v2, test
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Attachments: HBASE-21422.patch
>
>
> {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}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
