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https://issues.apache.org/jira/browse/FLINK-5290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15748075#comment-15748075
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ASF GitHub Bot commented on FLINK-5290:
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Github user StefanRRichter closed the pull request at:
https://github.com/apache/flink/pull/2966
> Ensure backwards compatibility of the hashes used to generate JobVertexIds
> --------------------------------------------------------------------------
>
> Key: FLINK-5290
> URL: https://issues.apache.org/jira/browse/FLINK-5290
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Reporter: Stefan Richter
> Assignee: Stefan Richter
>
> The way in which hashes for JobVertexIds are generated changed between Flink
> 1.1 and 1.2 (parallelism was considered for the hash in 1.1). We need to be
> backwards compatible to old JobVertexId generation so that we can still
> assign state from old savepoints.
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