[ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Karthik Kambatla updated YARN-2946:
-----------------------------------
            Priority: Blocker  (was: Major)
    Target Version/s: 2.7.0

> Deadlock in ZKRMStateStore
> --------------------------
>
>                 Key: YARN-2946
>                 URL: https://issues.apache.org/jira/browse/YARN-2946
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Rohith
>            Assignee: Rohith
>            Priority: Blocker
>
> Found one deadlock in ZKRMStateStore.
> # Initial stage zkClient is null because of zk disconnected event.
> # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
> re establish zookeeper connection either via synconnected or expired event, 
> it is highly possible that any other thred can obtain lock on 
> {{ZKRMStateStore.this}} from state machine transition events. This cause 
> Deadlock in ZKRMStateStore.



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

Reply via email to