heguanhui opened a new pull request, #58946:
URL: https://github.com/apache/doris/pull/58946
[improvement] (deitlog) Skip edit log writing when global variable value
unchanged
Avoid unnecessary edit log writes when setting global variable to the same
value. This reduces disk I/O and prevents edit log bloat.
The optimization adds a value comparison check before setting the variable
and writing edit log, maintaining thread safety under existing wlock.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- Behavior changed:
- [ ] No.
- Does this need documentation?
- [ ] No.
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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