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https://issues.apache.org/jira/browse/FLINK-5943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988586#comment-15988586
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ASF GitHub Bot commented on FLINK-5943:
---------------------------------------

Github user tillrohrmann commented on the issue:

    https://github.com/apache/flink/pull/3730
  
    Hi @zhangminglei, I think the logic to access the `RunningJobsRegistry` 
from the `YarnApplicationMasterRunner` is wrong. The decision to clear a job or 
not should be done by the `JobManagerRunner`. Therefore, the right solution 
would be to remove the `clearJob` call from the `shutdown` method. I will do 
this. Consequently, please close this PR and the corresponding JIRA issue.


> Unprotected access to haServices in 
> YarnFlinkApplicationMasterRunner#shutdown()
> -------------------------------------------------------------------------------
>
>                 Key: FLINK-5943
>                 URL: https://issues.apache.org/jira/browse/FLINK-5943
>             Project: Flink
>          Issue Type: Bug
>          Components: YARN
>            Reporter: Ted Yu
>            Assignee: mingleizhang
>            Priority: Minor
>
> {code}
>   protected void shutdown(ApplicationStatus status, String msg) {
>     // Need to clear the job state in the HA services before shutdown
>     try {
>       haServices.getRunningJobsRegistry().clearJob(jobGraph.getJobID());
>     }
> {code}
> The access to haServices is without lock protection.
> haServices may have been closed.



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