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https://issues.apache.org/jira/browse/FLINK-17295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17225940#comment-17225940
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Yangze Guo commented on FLINK-17295:
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I think a random `short` might be good enough, which is 4 bytes (10% overhead
for ExecutionAttemptID).
Or we can replace the JobID with a random AbstractID, which will not enlarge
the length of the ExecutionAttemptID and the serialization overhead.
> 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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