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https://issues.apache.org/jira/browse/HBASE-23261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Viraj Jasani updated HBASE-23261:
---------------------------------
Attachment: HBASE-23261.branch-1.3.001.patch
> Region stuck in transition while splitting
> ------------------------------------------
>
> Key: HBASE-23261
> URL: https://issues.apache.org/jira/browse/HBASE-23261
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.3.5
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Fix For: 1.6.0, 1.4.12, 1.3.7, 1.5.1
>
> Attachments: HBASE-23261.branch-1.3.000.patch,
> HBASE-23261.branch-1.3.000.patch, HBASE-23261.branch-1.3.001.patch
>
>
> While splitting, some region gets stuck in transition. After RegionServer
> initiates split, ZK has the region marked in RIT ZNode. However, RegionServer
> encounters KeeperException.BadVersion for
> /hbase/region-in-transition/\{region-name} while transitioning node to
> RS_ZK_REQUEST_REGION_SPLIT and hence, it runs rollback/cleanup of failed
> split of the region. Even after successful rollback, region stays in
> transition sometimes.
>
>
> {code:java}
> 2019-11-05 04:07:17,711 INFO [splits-1572926837064] regionserver.SplitRequest
> - Successful rollback of failed split of
> TABLE1,1572894157455.257ff8985e7a169af0514208b3b0b430.
> {code}
> {code:java}
> 2019-11-05 04:07:17,688 INFO [splits-1572926837064] regionserver.SplitRequest
> - Running rollback/cleanup of failed split of
> TABLE1,1572894157455.257ff8985e7a169af0514208b3b0b430.; Failed getting
> SPLITTING znode on TABLE1,1572894157455.257ff8985e7a169af0514208b3b0b430.
> java.io.IOException: Failed getting SPLITTING znode on
> TABLE1,1572894157455.257ff8985e7a169af0514208b3b0b430. at
> org.apache.hadoop.hbase.coordination.ZKSplitTransactionCoordination.waitForSplitTransaction(ZKSplitTransactionCoordination.java:203)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.stepsBeforePONR(SplitTransactionImpl.java:383)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.createDaughters(SplitTransactionImpl.java:278)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.execute(SplitTransactionImpl.java:561)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.doSplitting(SplitRequest.java:82)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.run(SplitRequest.java:153)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748) Caused by: java.io.IOException:
> Failed transition of splitting node
> TABLE1,1572894157455.257ff8985e7a169af0514208b3b0b430. at
> org.apache.hadoop.hbase.coordination.ZKSplitTransactionCoordination.transitionSplittingNode(ZKSplitTransactionCoordination.java:132)
> at
> org.apache.hadoop.hbase.coordination.ZKSplitTransactionCoordination.waitForSplitTransaction(ZKSplitTransactionCoordination.java:161)
> ... 8 more Caused by:
> org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode =
> BadVersion for /hbase/region-in-transition/257ff8985e7a169af0514208b3b0b430
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:115) at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at
> org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1336) at
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.setData(RecoverableZooKeeper.java:442)
> at org.apache.hadoop.hbase.zookeeper.ZKUtil.setData(ZKUtil.java:818) at
> org.apache.hadoop.hbase.zookeeper.ZKAssign.transitionNode(ZKAssign.java:871)
> at
> org.apache.hadoop.hbase.coordination.ZKSplitTransactionCoordination.transitionSplittingNode(ZKSplitTransactionCoordination.java:128)
> ... 9 more
> {code}
> {code:java}
> 2019-11-05 04:07:17,688 INFO [.Worker-pool3-t26826] master.RegionStates -
> Transition {257ff8985e7a169af0514208b3b0b430 state=OPEN, ts=1572923178845,
> server=rsserver.net,60020,1572890688075} to {257ff8985e7a169af0514208b3b0b430
> state=SPLITTING, ts=1572926837688, server=rsserver.net,60020,1572890688075}
> {code}
> {code:java}
> 2019-11-05 04:07:17,680 INFO [myid:5] [ead(sid:5 cport:-1):]
> server.PrepRequestProcessor - Got user-level KeeperException when processing
> sessionid:0x36dd5dc94536a3e type:setData cxid:0x8f8a zxid:0x304fd98ef
> txntype:-1 reqpath:n/a Error
> Path:/hbase/region-in-transition/257ff8985e7a169af0514208b3b0b430
> Error:KeeperErrorCode = BadVersion for
> /hbase/region-in-transition/257ff8985e7a169af0514208b3b0b430
> {code}
> {code:java}
> 2019-11-05 04:07:17,668 DEBUG [.Worker-pool3-t26826] master.AssignmentManager
> - Handling RS_ZK_REQUEST_REGION_SPLIT,
> server=rsserver.net,60020,1572890688075,
> region=257ff8985e7a169af0514208b3b0b430,
> current_state={257ff8985e7a169af0514208b3b0b430 state=OPEN, ts=1572923178845,
> server=rsserver.net,60020,1572890688075}
> {code}
> {code:java}
> 2019-11-05 04:07:17,661 DEBUG [splits-1572926837064]
> coordination.ZKSplitTransactionCoordination - Still waiting for master to
> process the pending_split for 257ff8985e7a169af0514208b3b0b430
> {code}
>
>
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