Dawid Wysakowicz created FLINK-24868: ----------------------------------------
Summary: Use custom serialization for storing checkpoint metadata in CompletedCheckpointStore Key: FLINK-24868 URL: https://issues.apache.org/jira/browse/FLINK-24868 Project: Flink Issue Type: Improvement Components: Runtime / Coordination Reporter: Dawid Wysakowicz We are using a java serialization for storing {{CompletedCheckpoint}} in {{CompletedCheckpointStore}}. This makes maintaining backwards compatibility of entries stored hard, even between minor versions. Maintaining this kind of backwards compatibility is required for ever considering rolling upgrades. In particular, we do have {{MetadataSerializer}} for storing checkpoints metadata in a backwards-compatible way. -- This message was sent by Atlassian Jira (v8.20.1#820001)