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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7651) RegionServerSnapshotManager fails with CancellationException if previous snapshot fails in per region task
Date Mon, 28 Jan 2013 19:11:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564555#comment-13564555
] 

Ted Yu commented on HBASE-7651:
-------------------------------

In your test runs, how much time did taking / restoring snapshot operation last ?
                
> RegionServerSnapshotManager fails with CancellationException if previous snapshot fails
in per region task
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7651
>                 URL: https://issues.apache.org/jira/browse/HBASE-7651
>             Project: HBase
>          Issue Type: Sub-task
>          Components: snapshots
>    Affects Versions: hbase-7290
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>            Priority: Blocker
>             Fix For: hbase-7290
>
>         Attachments: hbase-7651.patch, hbase-7651.v2.patch
>
>
> I've reproduced this problem consistently on a 20 node cluster.
> The first run fails on a node (jon-snaphots-2 in this case) to take snapshot due to a
NotServingRegionException (this is acceptable)
> {code}
> 2013-01-23 13:32:48,631 DEBUG org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher:
 accepting received exception
> org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via jon-snapshots-2.ent.cloudera.com,22101,1358976524369:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable:
org.apache.hadoop.hbase.NotServingRegionException: TestTable,0002493652,1358976652443.b858147ad87a7812ac9a73dd8fef36ad.
is closing
>         at org.apache.hadoop.hbase.errorhandling.ForeignException.deserialize(ForeignException.java:184)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureCoordinatorRpcs.abort(ZKProcedureCoordinatorRpcs.java:240)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureCoordinatorRpcs$1.nodeCreated(ZKProcedureCoordinatorRpcs.java:182)
>         at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:294)
>         at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
>         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
> Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: org.apache.hadoop.hbase.NotServingRegionException:
TestTable,0002493652,1358976652443.b858147ad87a7812ac9a73dd8fef36ad. is closing
>         at org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager$SnapshotSubprocedurePool.waitForOutstandingTasks(RegionServerSnapshotManager.java:343)
>         at org.apache.hadoop.hbase.regionserver.snapshot.FlushSnapshotSubprocedure.flushSnapshot(FlushSnapshotSubprocedure.java:107)
>         at org.apache.hadoop.hbase.regionserver.snapshot.FlushSnapshotSubprocedure.insideBarrier(FlushSnapshotSubprocedure.java:123)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:181)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:52)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)
> 2013-01-23 13:32:48,631 DEBUG org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher:
 Recieved error, notifying listeners...
> 2013-01-23 13:32:48,730 ERROR org.apache.hadoop.hbase.procedure.Procedure: Procedure
'pe-6' execution failed!
> org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via jon-snapshots-2.ent.cloudera.com,22101,1358976524369:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable:
org.apache.hadoop.hbase.NotServingRegionException: TestTable,0002493652,1358976652443.b858147ad87a7812ac9a73dd8fef36ad.
is closing
>         at org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher.rethrowException(ForeignExceptionDispatcher.java:84)
>         at org.apache.hadoop.hbase.procedure.Procedure.waitForLatch(Procedure.java:357)
>         at org.apache.hadoop.hbase.procedure.Procedure.call(Procedure.java:203)
>         at org.apache.hadoop.hbase.procedure.Procedure.call(Procedure.java:68)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: org.apache.hadoop.hbase.NotServingRegionException:
TestTable,0002493652,1358976652443.b858147ad87a7812ac9a73dd8fef36ad. is closing
>         at org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager$SnapshotSubprocedurePool.waitForOutstandingTasks(RegionServerSnapshotManager.java:343)
>         at org.apache.hadoop.hbase.regionserver.snapshot.FlushSnapshotSubprocedure.flushSnapshot(FlushSnapshotSubprocedure.java:107)
>         at org.apache.hadoop.hbase.regionserver.snapshot.FlushSnapshotSubprocedure.insideBarrier(FlushSnapshotSubprocedure.java:123)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:181)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:52)
>         ... 5 more
> {code}
> Subsequent snapshot attempts that require jon-snapshot-2 to participate fail like this:
> {code}
> org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via jon-snapshots-2.ent.cloudera.com,22101,1358976524369:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable:
java.util.concurrent.CancellationException
>         at org.apache.hadoop.hbase.errorhandling.ForeignException.deserialize(ForeignException.java:184)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureCoordinatorRpcs.abort(ZKProcedureCoordinatorRpcs.java:240)
>         at org.apache.hadoop.hbase.procedure.ZKProcedureCoordinatorRpcs$1.nodeCreated(ZKProcedureCoordinatorRpcs.java:182)
>         at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:294)
>         at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
>         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
> Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: java.util.concurrent.CancellationException
>         at org.apache.hadoop.hbase.procedure.Subprocedure.cancel(Subprocedure.java:270)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:202)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:52)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)
> 2013-01-23 13:32:59,557 DEBUG org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher:
 Recieved error, notifying listeners...
> 2013-01-23 13:32:59,810 ERROR org.apache.hadoop.hbase.procedure.Procedure: Procedure
'pe-7' execution failed!
> org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable via jon-snapshots-2.ent.cloudera.com,22101,1358976524369:org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable:
java.util.concurrent.CancellationException
>         at org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher.rethrowException(ForeignExceptionDispatcher.java:84)
>         at org.apache.hadoop.hbase.procedure.Procedure.waitForLatch(Procedure.java:357)
>         at org.apache.hadoop.hbase.procedure.Procedure.call(Procedure.java:203)
>         at org.apache.hadoop.hbase.procedure.Procedure.call(Procedure.java:68)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: org.apache.hadoop.hbase.errorhandling.ForeignException$ProxyThrowable: java.util.concurrent.CancellationException
>         at org.apache.hadoop.hbase.procedure.Subprocedure.cancel(Subprocedure.java:270)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:202)
>         at org.apache.hadoop.hbase.procedure.Subprocedure.call(Subprocedure.java:52)
>         ... 5 more
> {code}

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