[FLINK-27933] Savepoint status cannot be queried from standby jobmanager

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.15.0
• Fix Version/s: 1.15.1, 1.16.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Chesnay Schepler
• Reporter: Chesnay Schepler
• Created: 07/Jun/22 08:49
• Updated: 23/Jun/22 19:23
• Resolved: 23/Jun/22 19:22

Description

The savepoint status handler currently doesn't work on standby dispatchers because the OperationResult isn't serializable.

This wasn't caught by the recently added serialization safeguards, as those only covered the caller side (i.e., arguments passed to callee), but not the return value.

Issue Links

• is related to: FLINK-27954 JobVertexFlameGraphHandler does not work on standby Dispatcher
• links to: GitHub Pull Request #19930
• links to: GitHub Pull Request #20022