pingcap / pingcap/tiflash

TiFlash meets memory leak in specific scenarios

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#10,253 4 comments 0 reactions 0 assignees View on GitHub

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affects-7.5 affects-8.1 affects-8.5 component/storage impact/upgrade report/customer severity/major type/bug
Dominant language
C++
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Merged PRs (30d)
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Description

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)
2. What did you expect to see? (Required)

TiFlash running smothly

3. What did you see instead (Required)

TiFlash meets memory leak in specific scenarios. Every 6 hour, tiflash memory usage raise servel GiB. It didn't happen in v7.1.6

Image

4. What is your TiFlash version? (Required)

v7.5.6

Contributor guide

No contributing guide indexed for this repository

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 reproducing the reported memory growth in TiFlash v7.5.6 using a minimal scenario; the issue does not provide reproduction steps or identify files, tests, or an entry point. Compare behavior with v7.1.6 and use the attached memory-usage evidence to determine whether the leak is resolved when usage remains stable.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
databases
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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