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lightning/backend: use optimistic transaction for tidb backend #30953
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Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/d7b7cfe532ef048d03ab762733b31e70e2c8f581 |
/merge |
This pull request has been accepted and is ready to merge. Commit hash: 76d56aa
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What problem does this PR solve?
Issue Number: close #xxx
Problem Summary:
Lightning tidb backend doesn't use optimistic transaction which may cause many useless pessimistic requests to TiKV.
What is changed and how it works?
Set optimistic transaction for it.
![截屏2021-12-29 下午2 06 04](https://user-images.githubusercontent.com/4352397/147634818-eaec2390-6660-4bcb-8174-ebe6c5694eb8.png)
Check List
Tests
Side effects
Documentation
Release note