Memory tracker accuracy is much larger than limit
Open
Nobody has claimed this yet.
affects-6.4
component/compute
may-affects-4.0
may-affects-5.0
may-affects-5.1
may-affects-5.2
may-affects-5.3
may-affects-5.4
may-affects-6.0
may-affects-6.1
may-affects-6.2
may-affects-6.3
severity/moderate
type/bug
- Dominant language
- C++
- Stars
- 1k
- Forks
- 423
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 24
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
Message: "other error for mpp stream: From MPP<query:436761565050699778,task:7>: Code: 0, e.displayText() = DB::Exception: Memory tracker accuracy (total): fault injected. real_rss (19.37 GiB) is much larger than limit (16.00 GiB), e.what() = DB::Exception
2. What did you expect to see? (Required)
3. What did you see instead (Required)
4. What is your TiFlash version? (Required)
master
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported memory-tracker error on TiFlash master and trace the code that compares real_rss with the configured limit. The issue provides no file or test locations; done should include an identified cause, a verified correction to the reported accounting behavior, and regression coverage.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- backend, databases, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100