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https://issues.apache.org/jira/browse/HBASE-21278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16660514#comment-16660514
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Hudson commented on HBASE-21278:
--------------------------------

Results for branch branch-2.1
        [build #517 on 
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.1/517/]: 
(x) *{color:red}-1 overall{color}*
----
details (if available):

(/) {color:green}+1 general checks{color}
-- For more information [see general 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.1/517//General_Nightly_Build_Report/]




(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2) 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.1/517//JDK8_Nightly_Build_Report_(Hadoop2)/]


(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3) 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.1/517//JDK8_Nightly_Build_Report_(Hadoop3)/]


(/) {color:green}+1 source release artifact{color}
-- See build output for details.


(/) {color:green}+1 client integration test{color}


> Do not rollback successful sub procedures when rolling back a procedure
> -----------------------------------------------------------------------
>
>                 Key: HBASE-21278
>                 URL: https://issues.apache.org/jira/browse/HBASE-21278
>             Project: HBase
>          Issue Type: Sub-task
>          Components: proc-v2
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Critical
>             Fix For: 3.0.0, 2.2.0
>
>         Attachments: HBASE-21278-v1.patch, HBASE-21278.patch, 
> org.apache.hadoop.hbase.master.assignment.TestMergeTableRegionsProcedure-output.txt
>
>
> https://builds.apache.org/job/HBase-Flaky-Tests/job/master/1235/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.master.assignment.TestMergeTableRegionsProcedure-output.txt/*view*/
> I think the problem is
> {noformat}
> 2018-10-08 03:44:30,315 INFO  [PEWorker-1] 
> procedure.MasterProcedureScheduler(689): pid=43, ppid=42, state=SUCCESS, 
> hasLock=false; TransitRegionStateProcedure 
> table=testRollbackAndDoubleExecution, 
> region=9bac7c539ac0cff6dc5706ed375a3bfb, UNASSIGN checking lock on 
> 9bac7c539ac0cff6dc5706ed375a3bfb
> 2018-10-08 03:44:30,320 ERROR [PEWorker-1] helpers.MarkerIgnoringBase(159): 
> CODE-BUG: Uncaught runtime exception for pid=43, ppid=42, state=SUCCESS, 
> hasLock=true; TransitRegionStateProcedure 
> table=testRollbackAndDoubleExecution, 
> region=9bac7c539ac0cff6dc5706ed375a3bfb, UNASSIGN
> java.lang.UnsupportedOperationException
>       at 
> org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.rollbackState(TransitRegionStateProcedure.java:458)
>       at 
> org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.rollbackState(TransitRegionStateProcedure.java:97)
>       at 
> org.apache.hadoop.hbase.procedure2.StateMachineProcedure.rollback(StateMachineProcedure.java:208)
>       at 
> org.apache.hadoop.hbase.procedure2.Procedure.doRollback(Procedure.java:957)
>       at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeRollback(ProcedureExecutor.java:1605)
>       at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeRollback(ProcedureExecutor.java:1567)
>       at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1446)
>       at 
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$900(ProcedureExecutor.java:76)
> {noformat}
> Typically there is no rollback for TRSP. Need to dig more.



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