hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-12185) Deadlock in HConnectionManager$HConnectionImplementation
Date Sun, 23 Nov 2014 21:13:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl resolved HBASE-12185.
-----------------------------------
       Resolution: Cannot Reproduce
    Fix Version/s:     (was: 0.94.26)

Closing until we can confirm that this is still an issue in the latest 0.94.
There have 23 versions since 0.94.2.

Please feel free to re-open.

> Deadlock in HConnectionManager$HConnectionImplementation
> --------------------------------------------------------
>
>                 Key: HBASE-12185
>                 URL: https://issues.apache.org/jira/browse/HBASE-12185
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.94.2
>         Environment: CDH 4.2.0
>            Reporter: Michael Tamm
>            Priority: Critical
>
> Here you can see the relevant section of a thread dump:
> {noformat}
> Found one Java-level deadlock:
> =============================
> "AsyncSave-700512-Worker-EventThread":
>   waiting to lock monitor 0x00007f8d90eecd20 (object 0x00000005c0a8e1d0, a org.apache.hadoop.hbase.zookeeper.RootRegionTracker),
>   which is held by "AsyncSave-700546-Worker"
> "AsyncSave-700546-Worker":
>   waiting to lock monitor 0x00007f8d90149700 (object 0x0000000571404180, a org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation),
>   which is held by "AsyncSave-700512-Worker-EventThread"
> Java stack information for the threads listed above:
> ===================================================
> "AsyncSave-700512-Worker-EventThread":
> 	at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.stop(ZooKeeperNodeTracker.java:98)
> 	- waiting to lock <0x00000005c0a8e1d0> (a org.apache.hadoop.hbase.zookeeper.RootRegionTracker)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.resetZooKeeperTrackers(HConnectionManager.java:603)
> 	- locked <0x0000000571404180> (a org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.abort(HConnectionManager.java:1681)
> 	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.connectionEvent(ZooKeeperWatcher.java:389)
> 	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:286)
> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
> "AsyncSave-700546-Worker":
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.resetZooKeeperTrackers(HConnectionManager.java:598)
> 	- waiting to lock <0x0000000571404180> (a org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.abort(HConnectionManager.java:1681)
> 	at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.blockUntilAvailable(ZooKeeperNodeTracker.java:132)
> 	- locked <0x00000005c0a8e1d0> (a org.apache.hadoop.hbase.zookeeper.RootRegionTracker)
> 	at org.apache.hadoop.hbase.zookeeper.RootRegionTracker.waitRootRegionLocation(RootRegionTracker.java:83)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:841)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:954)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:852)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:954)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:856)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:813)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatchCallback(HConnectionManager.java:1503)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatch(HConnectionManager.java:1388)
> 	at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:955)
> 	at org.apache.hadoop.hbase.client.HTablePool$PooledHTable.flushCommits(HTablePool.java:449)
> 	at ...
> {noformat}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message