[FLINK-16257] Remove useless ResultPartitionID from AddCredit message

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Runtime / Network
• Labels: pull-request-available
• Assignee: Zhijiang
• Reporter: Zhijiang
• Created: 24/Feb/20 10:15
• Updated: 27/Feb/20 15:06
• Resolved: 27/Feb/20 15:06

Description

The ResultPartitionID in AddCredit message is never used on upstream side, so we can remove it to cleanup the codes. There would have another two benefits to do so:

1. Reduce the total message size from previous 52 bytes to 20 bytes.
2. Decouple the dependency with `InputChannel#getPartitionId`

Issue Links

• links to: GitHub Pull Request #11219