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https://issues.apache.org/jira/browse/FLINK-17295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17225962#comment-17225962
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Robert Metzger commented on FLINK-17295:
----------------------------------------

We could print the UUID component of the ExecutionAttemptID only on DEBUG log 
level? (probably we shouldn't do this through toString() but through a separate 
method to avoid any issues with code relying on the string representation)

> Refactor the ExecutionAttemptID to consist of ExecutionVertexID and 
> attemptNumber
> ---------------------------------------------------------------------------------
>
>                 Key: FLINK-17295
>                 URL: https://issues.apache.org/jira/browse/FLINK-17295
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Coordination
>            Reporter: Yangze Guo
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.12.0
>
>
> Make the ExecutionAttemptID being composed of (ExecutionVertexID, 
> attemptNumber).



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