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https://issues.apache.org/jira/browse/FLINK-5154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek closed FLINK-5154.
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Resolution: Not A Problem
> Duplicate TypeSerializer when writing RocksDB Snapshot
> ------------------------------------------------------
>
> Key: FLINK-5154
> URL: https://issues.apache.org/jira/browse/FLINK-5154
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Aljoscha Krettek
> Assignee: Stefan Richter
> Priority: Blocker
> Fix For: 1.2.0, 1.1.4
>
>
> Some {{TypeSerializers}} are not thread safe (for example {{KryoSerializer}})
> we have to {{duplicate()}} them when using concurrently, as happens when
> performing a RocksDB snapshot.
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