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https://issues.apache.org/jira/browse/FLINK-8234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16316063#comment-16316063
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ASF GitHub Bot commented on FLINK-8234:
---------------------------------------

Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5184#discussion_r160108633
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/minicluster/MiniClusterJobDispatcher.java
 ---
    @@ -405,22 +407,27 @@ private void decrementCheckAndCleanup() {
     
                private volatile Throwable runnerException;
     
    -           private volatile JobExecutionResult result;
    +           private volatile 
org.apache.flink.runtime.jobmaster.JobExecutionResult result;
                
                BlockingJobSync(JobID jobId, int numJobMastersToWaitFor) {
                        this.jobId = jobId;
                        this.jobMastersToWaitFor = new 
CountDownLatch(numJobMastersToWaitFor);
                }
     
                @Override
    -           public void jobFinished(JobExecutionResult jobResult) {
    -                   this.result = jobResult;
    +           public void 
jobFinished(org.apache.flink.runtime.jobmaster.JobExecutionResult result) {
    +                   this.result = result;
                        jobMastersToWaitFor.countDown();
                }
     
                @Override
    -           public void jobFailed(Throwable cause) {
    -                   jobException = cause;
    +           public void 
jobFailed(org.apache.flink.runtime.jobmaster.JobExecutionResult result) {
    +                   
checkArgument(result.getSerializedThrowable().isPresent());
    +
    +                   jobException = result
    --- End diff --
    
    Then I guess that we should remove it and store instead the 
`jobmaster.JobExecutionResult`.
      


> Cache JobExecutionResult from finished JobManagerRunners
> --------------------------------------------------------
>
>                 Key: FLINK-8234
>                 URL: https://issues.apache.org/jira/browse/FLINK-8234
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Distributed Coordination
>    Affects Versions: 1.5.0
>            Reporter: Till Rohrmann
>            Assignee: Gary Yao
>            Priority: Blocker
>              Labels: flip-6
>             Fix For: 1.5.0
>
>
> In order to serve the {{JobExecutionResults}} we have to cache them in the 
> {{Dispatcher}} after the {{JobManagerRunner}} has finished. The cache should 
> have a configurable size and should periodically clean up stale entries in 
> order to avoid memory exhaustion.



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