[FLINK-25997] FsStateChangelogWriter cannot work well when there is no change appended

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.15.0
• Component/s: Runtime / State Backends
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Hangxiang Yu
• Created: 08/Feb/22 05:49
• Updated: 12/Feb/22 07:57
• Resolved: 12/Feb/22 07:57

Description

For FsStateChangelogWriter, If there is no change appended, we should use the old sqn, but we always use sqn.next() currently.

Issue Links

• blocks: FLINK-25143 Add ITCase for Generalized incremental checkpoints
• duplicates: FLINK-25987 [Changelog] IllegalArgumentException thrown from FsStateChangelogWriter.truncate
• is related to: FLINK-25492 Changelog with InMemoryStateChangelogStorage cannot work well
• links to: GitHub Pull Request #18654