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https://issues.apache.org/jira/browse/HBASE-6088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287242#comment-13287242
]
Hudson commented on HBASE-6088:
-------------------------------
Integrated in HBase-0.92-security #109 (See
[https://builds.apache.org/job/HBase-0.92-security/109/])
HBASE-6088 Region splitting not happened for long time due to ZK exception
while creating RS_ZK_SPLITTING node (Rajesh) (Revision 1343819)
Result = SUCCESS
ramkrishna :
Files :
*
/hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/regionserver/SplitTransaction.java
*
/hbase/branches/0.92/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransactionOnCluster.java
> Region splitting not happened for long time due to ZK exception while
> creating RS_ZK_SPLITTING node
> ----------------------------------------------------------------------------------------------------
>
> Key: HBASE-6088
> URL: https://issues.apache.org/jira/browse/HBASE-6088
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.0
> Reporter: Gopinathan A
> Assignee: rajeshbabu
> Fix For: 0.92.2, 0.96.0, 0.94.1
>
> Attachments: HBASE-6088_92.patch, HBASE-6088_94.patch,
> HBASE-6088_94_2.patch, HBASE-6088_94_3.patch, HBASE-6088_trunk.patch,
> HBASE-6088_trunk_2.patch, HBASE-6088_trunk_3.patch, HBASE-6088_trunk_4.patch,
> addendum_6088_94.patch
>
>
> Region splitting not happened for long time due to ZK exception while
> creating RS_ZK_SPLITTING node
> {noformat}
> 2012-05-24 01:45:41,363 INFO org.apache.zookeeper.ClientCnxn: Client session
> timed out, have not heard from server in 26668ms for sessionid
> 0x1377a75f41d0012, closing socket connection and attempting reconnect
> 2012-05-24 01:45:41,464 WARN
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Possibly transient
> ZooKeeper exception:
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode
> = ConnectionLoss for /hbase/unassigned/bd1079bf948c672e493432020dc0e144
> {noformat}
> {noformat}
> 2012-05-24 01:45:43,300 DEBUG org.apache.hadoop.hbase.regionserver.wal.HLog:
> cleanupCurrentWriter waiting for transactions to get synced total 189377
> synced till here 189365
> 2012-05-24 01:45:48,474 INFO
> org.apache.hadoop.hbase.regionserver.SplitRequest: Running rollback/cleanup
> of failed split of
> ufdr,011365398471659,1337823505339.bd1079bf948c672e493432020dc0e144.; Failed
> setting SPLITTING znode on
> ufdr,011365398471659,1337823505339.bd1079bf948c672e493432020dc0e144.
> java.io.IOException: Failed setting SPLITTING znode on
> ufdr,011365398471659,1337823505339.bd1079bf948c672e493432020dc0e144.
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.createDaughters(SplitTransaction.java:242)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.execute(SplitTransaction.java:450)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.run(SplitRequest.java:67)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: org.apache.zookeeper.KeeperException$BadVersionException:
> KeeperErrorCode = BadVersion for
> /hbase/unassigned/bd1079bf948c672e493432020dc0e144
> 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:1246)
> at
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.setData(RecoverableZooKeeper.java:321)
> at org.apache.hadoop.hbase.zookeeper.ZKUtil.setData(ZKUtil.java:659)
> at
> org.apache.hadoop.hbase.zookeeper.ZKAssign.transitionNode(ZKAssign.java:811)
> at
> org.apache.hadoop.hbase.zookeeper.ZKAssign.transitionNode(ZKAssign.java:747)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.transitionNodeSplitting(SplitTransaction.java:919)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.createNodeSplitting(SplitTransaction.java:869)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.createDaughters(SplitTransaction.java:239)
> ... 5 more
> 2012-05-24 01:45:48,476 INFO
> org.apache.hadoop.hbase.regionserver.SplitRequest: Successful rollback of
> failed split of
> ufdr,011365398471659,1337823505339.bd1079bf948c672e493432020dc0e144.
> {noformat}
> {noformat}
> 2012-05-24 01:47:28,141 ERROR
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Node
> /hbase/unassigned/bd1079bf948c672e493432020dc0e144 already exists and this is
> not a retry
> 2012-05-24 01:47:28,142 INFO
> org.apache.hadoop.hbase.regionserver.SplitRequest: Running rollback/cleanup
> of failed split of
> ufdr,011365398471659,1337823505339.bd1079bf948c672e493432020dc0e144.; Failed
> create of ephemeral /hbase/unassigned/bd1079bf948c672e493432020dc0e144
> java.io.IOException: Failed create of ephemeral
> /hbase/unassigned/bd1079bf948c672e493432020dc0e144
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.createNodeSplitting(SplitTransaction.java:865)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.createDaughters(SplitTransaction.java:239)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransaction.execute(SplitTransaction.java:450)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.run(SplitRequest.java:67)
> {noformat}
> Due to the above exception, region splitting was failing contineously more
> than 5hrs
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