zoltar9264 opened a new pull request, #20152: URL: https://github.com/apache/flink/pull/20152
…file in the same taskmanager during restore ## What is the purpose of the change Reduce multiple reads to the same changelog file in the same taskmanager during restare, described in [FLINK-27155](https://issues.apache.org/jira/browse/FLINK-27155). ## Brief change log - extract file open from StateChangeFormat to StateChangeIteratorImpl and StateChangeIteratorWithCache - add StateChangeIteratorWithCache for cache dstl file to local - make FsStateChangelogStorageForRecovery use StateChangeIteratorWithCache for create StateChangelogHandleReader ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): no - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no - The serializers: no - The runtime per-record code paths (performance sensitive): no - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: yes - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? no -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
