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https://issues.apache.org/jira/browse/FLINK-5480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16423948#comment-16423948
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ASF GitHub Bot commented on FLINK-5480:
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Github user ShashwatRastogi-Reflektion commented on the issue:
https://github.com/apache/flink/pull/3117
Hey @uce, @StefanRRichter
I too have a flink job running in production where operators doesn't have
uids. Now, I have to add new operators and the job doesn't restart from
savepoint.
I came across this PR, and I tried setting the uid hash of the
operator-chain before adding a new operator but still loading from savepoint
doesn't work.
I'm sorry to bother you, and I know this has been a long closed PR, but can
you help me out in figuring out how to restart from savepoint when we don't
have uids set initially.
Thank you so much. :)
PS. Sorry to spam here.
> User-provided hashes for operators
> ----------------------------------
>
> Key: FLINK-5480
> URL: https://issues.apache.org/jira/browse/FLINK-5480
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Affects Versions: 1.2.0
> Reporter: Stefan Richter
> Assignee: Stefan Richter
> Priority: Major
> Fix For: 1.2.0, 1.3.0
>
>
> We could allow users to provided (alternative) hashes for operators in a
> StreamGraph. This can make migration between Flink versions easier, in case
> the automatically produced hashes between versions are incompatible. For
> example, users could just copy the old hashes from the web ui to their job.
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