[FLINK-18902] Cannot serve results of asynchronous REST operations in per-job mode

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.10.2, 1.11.2, 1.12.0
• Fix Version/s: 1.10.2, 1.11.2, 1.12.0
• Component/s: Runtime / REST
• Labels: pull-request-available
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 12/Aug/20 13:00
• Updated: 13/Aug/20 08:18
• Resolved: 13/Aug/20 08:18

Description

Due to the changes introduced with FLINK-18663 a Flink per-job cluster can no longer properly shut down. The problem is that we no longer serve asynchronous results (e.g. resulting from a cancel-with-savepoint operation) while the cluster waits to shut down.

In order to solve this problem, Flink needs to serve REST request also while it waits for shutting itself down.

Issue Links

• is caused by: FLINK-18663 RestServerEndpoint may prevent server shutdown
• links to: GitHub Pull Request #13131