uchenily opened a new pull request, #59774:
URL: https://github.com/apache/doris/pull/59774
### What problem does this PR solve?
This PR introduces asynchronous processing for edit log operations in the
TabletScheduler to reduce blocking and improve overall system responsiveness.
Previously, synchronized EditLog operations in the TabletScheduler slowed
down the speed of sending clone tasks, making it impossible to effectively
increase the replica repair rate across the entire cluster even when raising
values such as schedule_batch_size, schedule_slot_num_per_hdd_path, or
schedule_slot_num_per_ssd_path to large values. Particularly in large-scale
clusters, the overall replica repair rate is constrained by the FE
TabletScheduler and does not increase with the addition of BE nodes. Therefore,
we implement the following improvements:
- move EditLog operations to a dedicated thread pool, do not block the
scheduler thread
- remove unnecessary write locks to reduce lock contention
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. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### 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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