[FLINK-5059] only serialise events once in RecordWriter#broadcastEvent

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 1.3.0
• Component/s: Runtime / Network
• Assignee: Nico Kruber
• Reporter: Nico Kruber
• Created: 14/Nov/16 13:21
• Updated: 09/Jan/17 15:26
• Resolved: 09/Jan/17 15:26

Description

Currently, org.apache.flink.runtime.io.network.api.writer.RecordWriter#broadcastEvent serialises the event once per target channel. Instead, it could serialise the event only once and use the serialised form for every channel and thus save resources.

Issue Links

• links to: GitHub Pull Request #2805