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https://issues.apache.org/jira/browse/FLINK-4893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nico Kruber closed FLINK-4893.
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Resolution: Duplicate
> Use single RecordSerializer per RecordWriter
> --------------------------------------------
>
> Key: FLINK-4893
> URL: https://issues.apache.org/jira/browse/FLINK-4893
> Project: Flink
> Issue Type: Improvement
> Components: Network
> Reporter: Ufuk Celebi
> Priority: Major
>
> Instead of creating n instances of the serializer for each outgoing channel,
> we can simply keep the references to the {{Buffer}} instances in the writer
> and use a single record serializer instance.
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