[FLINK-17107] CheckpointCoordinatorConfiguration#isExactlyOnce() is inconsistent with StreamConfig#getCheckpointMode()

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.3, 1.7.2, 1.8.0, 1.9.0, 1.10.0
• Fix Version/s: 1.10.1, 1.11.0
• Component/s: Runtime / Checkpointing
• Labels: pull-request-available
• Assignee: Yingjie Cao
• Reporter: Yingjie Cao
• Created: 13/Apr/20 06:35
• Updated: 14/Apr/20 14:37
• Resolved: 14/Apr/20 04:04

Description

CheckpointCoordinatorConfiguration#isExactlyOnce() is inconsistent with StreamConfig#getCheckpointMode() when checkpoint is disabled. CheckpointCoordinatorConfiguration#isExactlyOnce() returns true if checkpoint mode is  EXACTLY_ONCE mode and return false if checkpoint mode is AT_LEAST_ONCE while StreamConfig#getCheckpointMode() will always return AT_LEAST_ONCE which means always not exactly once.

Issue Links

• links to: GitHub Pull Request #11713