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https://issues.apache.org/jira/browse/FLINK-9456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16526542#comment-16526542
 ] 

ASF GitHub Bot commented on FLINK-9456:
---------------------------------------

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

    https://github.com/apache/flink/pull/6132#discussion_r198491683
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/ResourceManager.java
 ---
    @@ -1120,5 +1131,14 @@ public void reportPayload(ResourceID resourceID, 
Void payload) {
                        return CompletableFuture.completedFuture(null);
                }
        }
    +
    +   protected void notifyTaskManagerCompleted(ResourceID resourceID, 
Exception cause) {
    +           WorkerRegistration<WorkerType> workerRegistration = 
taskExecutors.remove(resourceID);
    +           if (workerRegistration != null) {
    +                   slotManager.notifyTaskManagerFailed(resourceID, 
workerRegistration.getInstanceID(), cause);
    +           } else {
    +                   log.warn("TaskManager failed before registering with 
ResourceManager successfully.");
    --- End diff --
    
    This should be a debug log message.


> Let ResourceManager notify JobManager about failed/killed TaskManagers
> ----------------------------------------------------------------------
>
>                 Key: FLINK-9456
>                 URL: https://issues.apache.org/jira/browse/FLINK-9456
>             Project: Flink
>          Issue Type: Improvement
>          Components: Distributed Coordination
>    Affects Versions: 1.5.0
>            Reporter: Till Rohrmann
>            Assignee: Sihua Zhou
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.6.0, 1.5.1
>
>
> Often, the {{ResourceManager}} learns faster about TaskManager 
> failures/killings because it directly communicates with the underlying 
> resource management framework. Instead of only relying on the 
> {{JobManager}}'s heartbeat to figure out that a {{TaskManager}} has died, we 
> should additionally send a signal from the {{ResourceManager}} to the 
> {{JobManager}} if a {{TaskManager}} has died. That way, we can react faster 
> to {{TaskManager}} failures and recover our running job/s.



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