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https://issues.apache.org/jira/browse/FLINK-6482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16019290#comment-16019290
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ASF GitHub Bot commented on FLINK-6482:
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Github user rmetzger commented on the issue:
https://github.com/apache/flink/pull/3937
Thank you for your response.
This PR is the last item for the next release candidate. Would be good to
get this in in the next few hours so that I can finally start the vote for the
1.3 release.
> Add nested serializers into configuration snapshots of composite serializers
> ----------------------------------------------------------------------------
>
> Key: FLINK-6482
> URL: https://issues.apache.org/jira/browse/FLINK-6482
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing, Type Serialization System
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Priority: Blocker
> Fix For: 1.3.0
>
>
> Currently, the composite serializers' configuration snapshots only wrap the
> config snapshots of nested serializers.
> We should also consider adding serialization of the nested serializers into
> the config snapshot, so that in the case where only some nested serializer
> cannot be loaded (class missing / implementation changed), we can also
> provide a path for serializer upgrades.
> This applies for all composite serializers that have nested serializers.
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