Roman Khachatryan created FLINK-29157: -----------------------------------------
Summary: Clarify the contract between CompletedCheckpointStore and SharedStateRegistry Key: FLINK-29157 URL: https://issues.apache.org/jira/browse/FLINK-29157 Project: Flink Issue Type: Technical Debt Components: Runtime / Checkpointing Affects Versions: 1.15.2, 1.16.0 Reporter: Roman Khachatryan Assignee: Roman Khachatryan Fix For: 1.16.0, 1.15.3 After FLINK-24611, CompletedCheckpointStore is required to call SharedStateRegistry.unregisterUnusedState() on checkpoint subsumption and shutdown. Although it's not clear whether CompletedCheckpointStore is internal there are in fact external implementations (which weren't updated accordingly). After FLINK-25872, CompletedCheckpointStore also must call checkpointsCleaner.cleanSubsumedCheckpoints. Another issue with a custom implementation was using different java objects for state for CheckpointStore and SharedStateRegistry (after FLINK-24086). So it makes sense to: * clarify the contract (different in 1.15 and 1.16) * require using the same checkpoint objects by SharedStateRegistryFactory and CompletedCheckpointStore * mark the interface(s) as PublicEvolving -- This message was sent by Atlassian Jira (v8.20.10#820010)