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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18888) StealJobQueue should call super() to init the PriorityBlockingQueue
Date Thu, 28 Sep 2017 05:12:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ramkrishna.s.vasudevan updated HBASE-18888:
-------------------------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

I just noticed the +1. Pushed to master and branch-2 . Thanks for the reviews. QA is also
green.

> StealJobQueue should call super() to init the PriorityBlockingQueue
> -------------------------------------------------------------------
>
>                 Key: HBASE-18888
>                 URL: https://issues.apache.org/jira/browse/HBASE-18888
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha-3
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0-alpha-4
>
>         Attachments: HBASE-18888.patch
>
>
> {code}
> ERROR: java.io.IOException: org.apache.hadoop.hbase.regionserver.CompactSplit$CompactionRunner
cannot be cast to java.lang.Comparable
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:465)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:133)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:278)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:258)
> Caused by: java.lang.ClassCastException: org.apache.hadoop.hbase.regionserver.CompactSplit$CompactionRunner
cannot be cast to java.lang.Comparable
>         at java.util.concurrent.PriorityBlockingQueue.siftUpComparable(PriorityBlockingQueue.java:357)
>         at java.util.concurrent.PriorityBlockingQueue.offer(PriorityBlockingQueue.java:489)
>         at org.apache.hadoop.hbase.util.StealJobQueue.offer(StealJobQueue.java:103)
>         at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1361)
>         at org.apache.hadoop.hbase.regionserver.CompactSplit.requestCompactionInternal(CompactSplit.java:291)
>         at org.apache.hadoop.hbase.regionserver.CompactSplit.requestCompactionInternal(CompactSplit.java:248)
>         at org.apache.hadoop.hbase.regionserver.CompactSplit.requestCompaction(CompactSplit.java:236)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.compactRegion(RSRpcServices.java:1591)
>         at org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:26856)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:406)
> {code}
> Seems to be a simple miss. StealJobQueue does not init the PriorityBlockingQueue that
it extends and so major compaction/compaction just fails with the above stack trace.



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