[FLINK-16444] Count the read/write/seek/next latency of RocksDB as metrics

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.13.0
• Component/s: Runtime / State Backends
• Labels: pull-request-available
• Assignee: Yun Tang
• Reporter: Yun Tang
• Created: 05/Mar/20 13:56
• Updated: 28/Aug/21 11:12
• Resolved: 01/Apr/21 06:19

Description

Currently, user cannot know the read/write/seek/next latency of RocksDB, we could add these helpful metrics to know the overall state performance. To not affect the action performance much, we could introduce counter to only record the latency at interval of some actions.

Issue Links

• is related to: FLINK-21736 Introduce latency tracking state
• links to: flink pull/15119
• links to: GitHub Pull Request #15091