hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5921) Incorrect synchronization in RMContextImpl#setHAServiceState/getHAServiceState
Date Thu, 08 Dec 2016 02:25:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15730862#comment-15730862
] 

Naganarasimha G R commented on YARN-5921:
-----------------------------------------

Thanks for the contribution [~varun_saxena] and review from [~templedf]. Have committed it
to branch-2.8, branch-2 and trunk. Thanks for the check and update [~rohithsharma]

> Incorrect synchronization in RMContextImpl#setHAServiceState/getHAServiceState
> ------------------------------------------------------------------------------
>
>                 Key: YARN-5921
>                 URL: https://issues.apache.org/jira/browse/YARN-5921
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>         Attachments: YARN-5921.01.patch, YARN-5921.02.patch
>
>
> Code in RMContextImpl is as under:
> {code:title=RMContextImpl.java|borderStyle=solid}
>   void setHAServiceState(HAServiceState haServiceState) {
>     synchronized (haServiceState) {
>       this.haServiceState = haServiceState;
>     }
>   }
>   public HAServiceState getHAServiceState() {
>     synchronized (haServiceState) {
>       return haServiceState;
>     }
>   }
> {code}
> As can be seen above, in setHAServiceState, we are synchronizing on the passed haServiceState
instead of haServiceState in RMContextImpl which will not lead to desired effect. This does
not seem to be intentional.
> We can use a RW lock or synchronize on some object here. 



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

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org


Mime
View raw message