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https://issues.apache.org/jira/browse/FLINK-9936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16563658#comment-16563658
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ASF GitHub Bot commented on FLINK-9936:
---------------------------------------

GJL commented on a change in pull request #6451: [FLINK-9936] Resource manager 
connect to mesos after leadership granted. .
URL: https://github.com/apache/flink/pull/6451#discussion_r206522513
 
 

 ##########
 File path: 
flink-mesos/src/main/java/org/apache/flink/mesos/runtime/clusterframework/MesosResourceManager.java
 ##########
 @@ -221,10 +221,14 @@ protected ActorRef 
createReconciliationCoordinator(SchedulerDriver schedulerDriv
        // 
------------------------------------------------------------------------
 
        /**
-        * Starts the Mesos-specifics.
+        * Do nothing and all work has been moved to on leadership granted 
callback.
         */
        @Override
        protected void initialize() throws ResourceManagerException {
+       }
+
+       @Override
+       protected void onLeaderShipGranted() throws Exception {
 
 Review comment:
   We are re-creating the supporting actors without shutting them down. This 
should result in memory leaks everytime the instance wins the leader election. 
It is also not very nice that we occupy the main thread of the actor with 
blocking IO.

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> Mesos resource manager unable to connect to master after failover
> -----------------------------------------------------------------
>
>                 Key: FLINK-9936
>                 URL: https://issues.apache.org/jira/browse/FLINK-9936
>             Project: Flink
>          Issue Type: Bug
>          Components: Mesos, Scheduler
>    Affects Versions: 1.5.0, 1.5.1, 1.6.0
>            Reporter: Renjie Liu
>            Assignee: Gary Yao
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 1.5.3, 1.6.0
>
>
> When deployed in mesos session cluster mode, the connector monitor keeps 
> reporting unable to connect to mesos after restart. In fact, scheduler driver 
> already connected to mesos master, but when the connected message is lost. 
> This is because leadership is not granted yet and fence id is not set, the 
> rpc service ignores the connected message. So we should connect to mesos 
> master after leadership is granted.



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