[FLINK-5229] Cleanup StreamTaskStates if a checkpoint operation of a subsequent operator fails

• 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, 1.3.0
• Component/s: Runtime / Coordination, Runtime / State Backends
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 02/Dec/16 13:53
• Updated: 29/Jan/17 14:42
• Resolved: 24/Jan/17 10:38

Description

Due to chaining, a StreamTask needs to checkpoint multiple operators. If the first operators succeed in creating a checkpoint but a subsequent operator in the chain fails, the StreamTask has to clean up the already completed checkpoints. Otherwise we might end up with orphaned state data.

Issue Links

• links to: GitHub Pull Request #2924
• links to: GitHub Pull Request #3179