[Subtask] Expose mysql frontend connection metrics
- Dominant language
- Scala
- Stars
- 2.4k
- Forks
- 1k
- PR merge metrics
- No merged PRs in 30d
Description
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
### Search before asking
- [X] I have searched in the [issues](https://github.com/apache/incubator-kyuubi/issues) and found no similar issues.
### Describe the subtask
Expose mysql frontend connection metrics
### Parent issue
#3169
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
Contributor guide
Research direction
Read parent issue #3169 first, then locate the MySQL frontend connection-handling entry point and existing metric definitions. Done means the MySQL frontend connection metrics are exposed and verifiable through the project's metric mechanism; this issue names no files or tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- mysql, scala
- Domain
- observability
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100