[SPARK-35172] The implementation of RocksDBCheckpointMetadata

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.0
• Component/s: Structured Streaming
• Assignee: Apache Spark
• Reporter: Yuanjian Li
• Created: 21/Apr/21 09:17
• Updated: 27/May/21 13:57
• Resolved: 27/May/21 13:57

Description

The RocksDBCheckpointMetadata persists the metadata for each committed batch in JSON format. The object contains all RocksDB file names and the number of total keys.
The metadata binds closely with the directory structure of RocksDBFileManager, as described in the design doc - Directory Structure and Format for Files stored in DFS

Issue Links

• links to: [Github] Pull Request #32272 (xuanyuanking)
• links to: [Github] Pull Request #32272 (xuanyuanking)