[FLINK-5158] Handle ZooKeeperCompletedCheckpointStore exceptions in CheckpointCoordinator

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.3, 1.2.0
• Fix Version/s: 1.1.4, 1.2.0
• Component/s: Runtime / State Backends
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 24/Nov/16 16:15
• Updated: 09/Dec/16 16:52
• Resolved: 09/Dec/16 16:51

Description

The checkpoint coordinator does not properly handle exceptions when trying to store completed checkpoints. As a result, completed checkpoints are not properly cleaned up and even worse, the CheckpointCoordinator might get stuck stopping triggering checkpoints.

Issue Links

• links to: GitHub Pull Request #2872
• links to: GitHub Pull Request #2873