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https://issues.apache.org/jira/browse/FLINK-17295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17226241#comment-17226241
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Till Rohrmann commented on FLINK-17295:
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I can only second Stephan and Chesnay in introducing a truly random element to
be on the safe side.
Maybe it is fine to only log a digest of the random part because at the end the
problem is differentiating between two executions (the new one and a possibly
old one). A digest of a couple of characters could already be good enough for
it.
> 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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