pingcap / pingcap/ticdc

optimize schema store memory usage during start when there are many tables

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

Description

When there are many tables, schema store may consume many memory during restart

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 by locating the schema store startup and restart path in the Go code, then inspect the attached image for the reported memory behavior with many tables. Done means schema store startup uses less memory in that scenario, with a regression check if the repository provides one.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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