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https://issues.apache.org/jira/browse/FLINK-4340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15415348#comment-15415348
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ASF GitHub Bot commented on FLINK-4340:
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Github user wenlong88 commented on the issue:
https://github.com/apache/flink/pull/2345
3q, @aljoscha
Maybe we can use different db instance for different key group. this
approach can only work well when key group number is limited to a certain
number which can not be too large.
Since the max number of key groups is limited by the max parallelism
config, I think different db instances can work.
> Remove RocksDB Semi-Async Checkpoint Mode
> -----------------------------------------
>
> Key: FLINK-4340
> URL: https://issues.apache.org/jira/browse/FLINK-4340
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing
> Affects Versions: 1.1.0
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
>
> This seems to be causing to many problems and is also incompatible with the
> upcoming key-group/sharding changes that will allow rescaling of keyed state.
> Once this is done we can also close FLINK-4228.
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