TiFlash replicate progress sometimes become 0.99 when create/remove/merge peer frequently.
Open
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component/storage
type/enhancement
- 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)
Run sysbench in big cluster with 4 billion rows data.
2. What did you expect to see? (Required)
TiFlash replicate progress always 1.
3. What did you see instead (Required)
TiFlash replicate progress sometimes become 0.99.
4. What is your TiFlash version? (Required)
v6.5
Contributor guide
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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 issue with sysbench on a big cluster containing 4 billion rows, using TiFlash v6.5. Exercise frequent create, remove, and merge peer operations while observing replication progress. Done means the progress remains at 1 instead of intermittently reaching 0.99.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases, distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100