Roman Khachatryan created FLINK-25850: -----------------------------------------
Summary: Consider notifying nested state backend about checkpoint abortion Key: FLINK-25850 URL: https://issues.apache.org/jira/browse/FLINK-25850 Project: Flink Issue Type: Sub-task Components: Runtime / State Backends Reporter: Roman Khachatryan Fix For: 1.16.0 The notification is optional, but some backends might do GC upon receiving it. {code} These notifications are "best effort", meaning they can sometimes be skipped. This method is very rarely necessary to implement. {code} The usefulness is also limited by: - low probability of notification reaching backend because of the difference in intervals and cleanup on checkpoint completion - low probability of backends making good use of it because it's delivered after snapshot is done; and backends must be resilient to missing notifications There is added complexity and risk (such as FLINK-25816). Probably, complexity can be eliminated by extracting some Notifier class from ChangelogStateBackend. cc: [~yunta] -- This message was sent by Atlassian Jira (v8.20.1#820001)