What is the cause of the error "PessimisticLock error: MultipleKeyErrors([KeyError(KeyError { locked: None, retryable: "Error(Txn(Error(Mvcc(Error(WriteConflict"..."?
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- Rust
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Description
What is the cause of the error "PessimisticLock error: MultipleKeyErrors([KeyError(KeyError { locked: None, retryable: "Error(Txn(Error(Mvcc(Error(WriteConflict"..."?
After this error occurs, does it mean the entire transaction was not executed, and the database state remains the same as before the transaction?
Is there any solution to this?
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Research direction
Start with the reported PessimisticLock error and the attached image, then trace how the client reports transaction failures and how TiKV handles write conflicts. The work is done when the cause, transaction-state guarantee, and a supported resolution are documented or the issue is narrowed to a reproducible client defect.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- databases, distributed-systems
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100