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https://issues.apache.org/jira/browse/FLINK-4313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15408652#comment-15408652
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Aljoscha Krettek commented on FLINK-4313:
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Yes, the key-group support is only in there partially.
[~StephanEwen] This is a WIP branch where [~srichter] and I are working to port
[~till.rohrmann]'s key-group changes. This makes preparations for rebasing it
on top of master, along with some cleanups. The next step is to actually port
the state backends. The branch:
https://github.com/aljoscha/flink/commits/keyed-state
> Inconsistent code for Key/Value in the CheckpointCoordinator
> ------------------------------------------------------------
>
> Key: FLINK-4313
> URL: https://issues.apache.org/jira/browse/FLINK-4313
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.1.0
> Reporter: Stephan Ewen
> Fix For: 1.2.0
>
>
> The CheckpointCoordinator seems to have maps to track KeyValue states
> independently from other state.
> However, currently all state is transferred via a single {{StateHandle}}. The
> CheckpointCoordinator does not populate the key/value state map ever, nor do
> the deploy fields actually pick up any contents from that map.
> This is currently quite confusing and probably error prone.
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