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https://issues.apache.org/jira/browse/FLINK-5265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15822414#comment-15822414
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Aljoscha Krettek commented on FLINK-5265:
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Lower level code in master in:
1020ba2c9cfc1d01703e97c72e20a922bae0732d
> Introduce state handle replication mode for CheckpointCoordinator
> -----------------------------------------------------------------
>
> Key: FLINK-5265
> URL: https://issues.apache.org/jira/browse/FLINK-5265
> Project: Flink
> Issue Type: New Feature
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0
> Reporter: Stefan Richter
> Assignee: Stefan Richter
>
> Currently, the {{CheckpointCoordinator}} only supports repartitioning of
> {{OperatorStateHandle}}s based on a split-and-distribute strategy. For future
> state types, such as broadcast or union state, we need a different
> repartitioning method that allows for replicating state handles to all
> subtasks.
> This is the first step on the way to implementing broadcast and union states.
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