[jira] [Created] (FLINK-5060) only serialise records once in RecordWriter#emit and RecordWriter#broadcastEmit

[Shang Yuanchun (Jira)]

Nico Kruber created FLINK-5060:
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             Summary: only serialise records once in RecordWriter#emit and RecordWriter#broadcastEmit
                 Key: FLINK-5060
                 URL: https://issues.apache.org/jira/browse/FLINK-5060
             Project: Flink
          Issue Type: Improvement
          Components: Network
            Reporter: Nico Kruber
            Assignee: Nico Kruber


Currently, org.apache.flink.runtime.io.network.api.writer.RecordWriter#emit and org.apache.flink.runtime.io.network.api.writer.RecordWriter#broadcastEmit serialise a record once per target channel. Instead, they could serialise the record only once and use the serialised form for every channel and thus save resources.



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