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https://issues.apache.org/jira/browse/FLINK-6482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tzu-Li (Gordon) Tai resolved FLINK-6482.
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Resolution: Fixed
Fixed for master via a7bc5de9b17dde793c6da0e7cb700004af117148.
Fixed for 1.3.0 via 09cc3f7c577741d7271f73c6e916c98f7b79a820.
> 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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