the retry logic has an error
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- Dominant language
- C++
- Stars
- 1k
- Forks
- 423
- Avg merge
- 1d 15h
- Merged PRs (30d)
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Description
when grpc errors occur, the tidb retry to send the task, but the old task is alread running and a new idential task is trying to register, but encounter an error: the task is already registerd. later, the tidb send cancel command to the tiflash. As a result, the retry failed.
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
No files, tests, or entry points are identified. Start by tracing the gRPC retry path and the TiDB/TiFlash task registration and cancellation flow; done means a retry does not fail when the original task is still running and cancellation does not invalidate the retried task.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, grpc
- Domain
- distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100