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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3385) Race condition: KeeperException$NoNodeException will cause RM shutdown during ZK node deletion.
Date Thu, 07 May 2015 10:46:08 GMT

    [ https://issues.apache.org/jira/browse/YARN-3385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14532442#comment-14532442
] 

Hudson commented on YARN-3385:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #920 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/920/])
YARN-3385. Fixed a race-condition in ResourceManager's ZooKeeper based state-store to avoid
crashing on duplicate deletes. Contributed by Zhihai Xu. (vinodkv: rev 4c7b9b6abe2452c9752a11214762be2e7665fb32)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java
* hadoop-yarn-project/CHANGES.txt


> Race condition: KeeperException$NoNodeException will cause RM shutdown during ZK node
deletion.
> -----------------------------------------------------------------------------------------------
>
>                 Key: YARN-3385
>                 URL: https://issues.apache.org/jira/browse/YARN-3385
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>            Priority: Critical
>              Labels: BB2015-05-TBR
>             Fix For: 2.7.1
>
>         Attachments: YARN-3385.000.patch, YARN-3385.001.patch, YARN-3385.002.patch, YARN-3385.003.patch,
YARN-3385.004.patch
>
>
> Race condition: KeeperException$NoNodeException will cause RM shutdown during ZK node
deletion(Op.delete).
> The race condition is similar as YARN-3023.
> since the race condition exists for ZK node creation, it should also exist for  ZK node
deletion.
> We see this issue with the following stack trace:
> {code}
> 2015-03-17 19:18:58,958 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Received a org.apache.hadoop.yarn.server.resourcemanager.RMFatalEvent of type STATE_STORE_OP_FAILED.
Cause:
> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode
> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
> 	at org.apache.zookeeper.ZooKeeper.multiInternal(ZooKeeper.java:945)
> 	at org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:911)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$4.run(ZKRMStateStore.java:857)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$4.run(ZKRMStateStore.java:854)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithCheck(ZKRMStateStore.java:973)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithRetries(ZKRMStateStore.java:992)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.doMultiWithRetries(ZKRMStateStore.java:854)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.removeApplicationStateInternal(ZKRMStateStore.java:647)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.handleStoreEvent(RMStateStore.java:691)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:766)
> 	at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:761)
> 	at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> 	at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> 	at java.lang.Thread.run(Thread.java:745)
> 2015-03-17 19:18:58,959 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
> {code}



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