GitHub user shixiaogang opened a pull request: https://github.com/apache/flink/pull/3801
[FLINK-6364] [checkpoints] Implement incremental checkpointing in RocksDBKeyedStateBackend This is the initial implementation of incremental checkpointing in RocksDBKeyedStateBackend. Changes include 1. Add a new `CheckpointType` for incremental checkpoints. 2. Call the `restore()` method for all `KeyedStateBackend` if the restore state handle is null or empty. 3. Implement `RocksDBIncrementalSnapshotOperation` and `RocksDBIncrementalRestoreOperation` which supports incremental snapshotting and restoring with/without parallelism changes, respectively. You can merge this pull request into a Git repository by running: $ git pull https://github.com/shixiaogang/flink flink-6364 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/3801.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #3801 ---- commit c5340a2186ecfbc48c46048db5adb11af83db511 Author: xiaogang.sxg <xiaogang....@alibaba-inc.com> Date: 2017-04-29T15:44:36Z Implement incremental checkpointing in RocksDBKeyedStateBackend ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---