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https://issues.apache.org/jira/browse/HBASE-7651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13562107#comment-13562107
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Jonathan Hsieh commented on HBASE-7651:
---------------------------------------
pe-snapshots.sh was the line right below it:
echo "(1..$SSCOUNT).map {|x| snapshot 'TestTable', 'pe-'+x.to_s}" | hbase shell
list_snapshots lists the names of the snapshots that matche the regex -- so we
try to take SSCOUNT=30 snapshots call pe-1, pe-2...pe-30, and then list all
that match pe-*. This fails only if there are not snapshots. In the logs
we'd see the first log from the description and then all others would fail with
essentially the second log in the description.
> RegionServerSnapshotManager fails with CancellationException if previous
> snapshot fails in per region task
> ----------------------------------------------------------------------------------------------------------
>
> Key: HBASE-7651
> URL: https://issues.apache.org/jira/browse/HBASE-7651
> Project: HBase
> Issue Type: Sub-task
> Components: snapshots
> Affects Versions: hbase-7290
> Reporter: Jonathan Hsieh
> Assignee: Jonathan Hsieh
> Priority: Blocker
> Attachments: hbase-7651.patch
>
>
> I've reproduced this problem consistently on a 20 node cluster.
> The first run fails on a node (jon-snaphots-2 in this case) to take snapshot
> due to a NotServingRegionException (this is acceptable)
> {code}
> 2013-01-23 13:32:48,631 DEBUG
> org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher: accepting
> received exception
> org.apache.hadoop.hbase.errorhandling.ForeignException$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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