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https://issues.apache.org/jira/browse/FLINK-13072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16877586#comment-16877586
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Yun Tang commented on FLINK-13072:
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[~zicat] After a quick look, I believe this is not a RocksDBStateBackend bug
but the {{input.iterator()}} not thread safe. You could print the details when
you get {{mapState}} in your {{valueCount}} method each time, and you could
find the two {{mapState}} are not updated consistently.
> RocksDBStateBachend is not thread safe and data loss silently
> -------------------------------------------------------------
>
> Key: FLINK-13072
> URL: https://issues.apache.org/jira/browse/FLINK-13072
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 1.8.0, 1.8.1
> Reporter: lynn1.zhang
> Priority: Blocker
> Attachments: flink-demo.zip
>
>
> I create 2 mapstates in one operator, then create 2 threads in apply method,
> each thread operate each map state(the operator is same), the expect result
> is that 2 state have the same result but not. I upload the code, please help
> to try it.
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