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https://issues.apache.org/jira/browse/FLINK-5480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16424244#comment-16424244
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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
@zentol I am using flink 1.3.2.
Normally, I don't use `--allowNonRestoredState` and I get an error while
restarting the job. After using this `allowNonRestoredState` the job starts up
fine but there is a data loss because of lost state, which is what I want to
avoid.
I think, the problem with my implementation is that I am wrongly assigning
some ids to the operators. Is there sure-shot way of finding out uid or
uid-hash generated by flink for each operator(with/without chaining) ?
> 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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