Pump will retry to connect to the TiKV which is offline all the time
Open
Nobody has claimed this yet.
severity/moderate
type/bug
- Dominant language
- Go
- Stars
- 291
- Forks
- 131
- Avg merge
- 5m
- Merged PRs (30d)
- 2
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
- What did you do?
Offline a TiKV,
- What did you expect to see?
Pump can run normally.
- What did you see instead?
Pump send requests to the TiKV for check transaction's status, and will get warn log like below:
Pump can't get result from this TiKV, and will be blocked, so the Pump's usage memory will increase.
- Please provide the relate downstream type and version of drainer.
(rundrainer -Vin terminal to get drainer's version)
v3.0.5
Contributor guide
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 a TiKV taken offline, then inspect Pump's path for checking transaction status and the warning shown in the report. Done means Pump does not remain blocked or continuously grow its memory while the TiKV stays offline.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- go
- Domain
- distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100