pingcap / pingcap/ticdc

Mysql Sink Worker ratio is highly unbalanced

Open
#1,583 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Go
Stars
56
Forks
63
Avg merge
2d 20h
Merged PRs (30d)
34

Description

in tcms test sysbench, the mysql sink is not faster enough to make lag down. Besides, the worker ratio of workers is quite unbalanced, which exist some optimization space for better performance.

Image

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the tcms sysbench test and the attached worker-ratio results, then trace the MySQL sink worker allocation and how it affects lag. Measure whether the worker distribution becomes more balanced and whether sink throughput improves enough to reduce lag.

Written by the indexing model from the issue text.

Assessment

Tech stack
go, mysql
Domain
data-engineering, performance
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.