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https://issues.apache.org/jira/browse/FLINK-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15528198#comment-15528198
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ASF GitHub Bot commented on FLINK-4657:
---------------------------------------

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

    https://github.com/apache/flink/pull/2550#discussion_r80835773
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/jobmaster/JobMaster.java 
---
    @@ -467,6 +487,128 @@ public void registerAtResourceManager(final String 
address) {
                //TODO:: register at the RM
        }
     
    +   @RpcMethod
    +   public NextInputSplit requestNextInputSplit(final JobVertexID vertexID, 
final ExecutionAttemptID executionAttempt) {
    +           final byte[] serializedInputSplit;
    +
    +           final Execution execution = 
executionGraph.getRegisteredExecutions().get(executionAttempt);
    +           if (execution == null) {
    +                   log.error("Can not find Execution for attempt {}.", 
executionAttempt);
    --- End diff --
    
    ok, will change to "debug" and leave some comments about this.


> Implement HighAvailabilityServices based on zookeeper
> -----------------------------------------------------
>
>                 Key: FLINK-4657
>                 URL: https://issues.apache.org/jira/browse/FLINK-4657
>             Project: Flink
>          Issue Type: New Feature
>          Components: Cluster Management
>            Reporter: Kurt Young
>            Assignee: Kurt Young
>
> For flip-6, we will have ResourceManager and every JobManager as potential 
> leader contender and retriever. We should separate them by using different 
> zookeeper path. 
> For example, the path could be /leader/resource-manaeger for RM. And for each 
> JM, the path could be /leader/job-managers/JobID



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