[jira] [Commented] (HBASE-23261) Region stuck in transition while splitting

["Hudson (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-23261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16975535#comment-16975535 ] 

Hudson commented on HBASE-23261:
--------------------------------

SUCCESS: Integrated in Jenkins build HBase-1.3-IT #672 (See [https://builds.apache.org/job/HBase-1.3-IT/672/])
HBASE-23261 Region stuck in transition while splitting (apurtell: rev 7ac0eb9f033be4e0f9ff56cd4679a5b07b3a2594)
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/coordination/ZKSplitTransactionCoordination.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKAssign.java


> 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
>
>         Attachments: HBASE-23261.branch-1.3.000.patch, HBASE-23261.branch-1.3.000.patch, HBASE-23261.branch-1.3.001.patch, HBASE-23261.branch-1.3.002.patch, HBASE-23261.branch-1.3.003.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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