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https://issues.apache.org/jira/browse/HBASE-20131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16396286#comment-16396286
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stack commented on HBASE-20131:
-------------------------------
Made HBASE-20178. Steals the test from this patch. Makes it so procedures
fail-fast if their table is disabled, non-writable, master is going down, or
cluster is down.
> NPE in MoveRegionProcedure via IntegrationTestLoadAndVerify with CM
> -------------------------------------------------------------------
>
> Key: HBASE-20131
> URL: https://issues.apache.org/jira/browse/HBASE-20131
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Reporter: Josh Elser
> Assignee: Josh Elser
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-20131.001.patch
>
>
> I believe the error is that a MoveRegionProcedure comes in via ChaosMonkey
> for an unassigned region that was from a disabled table (also due to CM)
> which causes an NPE as we try to set a null original location into the
> protobuf which fails.
> {noformat}
> 2018-03-02 23:07:00,146 ERROR
> [RpcServer.default.FPBQ.Fifo.handler=23,queue=2,port=20000] ipc.RpcServer:
> Unexpected throwable object
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos$MoveRegionStateData$Builder.setSourceServer(MasterProcedureProtos.java:26127)
> at
> org.apache.hadoop.hbase.master.assignment.MoveRegionProcedure.serializeStateData(MoveRegionProcedure.java:133)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureUtil.convertToProtoProcedure(ProcedureUtil.java:198)
> at
> org.apache.hadoop.hbase.procedure2.store.wal.ProcedureWALFormat.writeEntry(ProcedureWALFormat.java:211)
> at
> org.apache.hadoop.hbase.procedure2.store.wal.ProcedureWALFormat.writeInsert(ProcedureWALFormat.java:222)
> at
> org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore.insert(WALProcedureStore.java:490)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.submitProcedure(ProcedureExecutor.java:863)
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.submitProcedure(ProcedureExecutor.java:832)
> at
> org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait.submitProcedure(ProcedureSyncWait.java:111)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.moveAsync(AssignmentManager.java:561)
> at org.apache.hadoop.hbase.master.HMaster.move(HMaster.java:1707)
> at
> org.apache.hadoop.hbase.master.MasterRpcServices.moveRegion(MasterRpcServices.java:1324)
> at
> org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304){noformat}
> IntegrationTestLoadAndVerify also failed, but I'm not sure if it's related to
> this, or just a problem with the test. The test failed because the table was
> left offline after it was disabled, and appears to not have been re-enabled.
> Still debugging that side..
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