deardeng opened a new pull request, #60835:
URL: https://github.com/apache/doris/pull/60835
Root cause:
- In active-priority mode, performBalancing() returns early when active
objects are still unbalanced. Under sustained hot-tablet pressure, this keeps
happening and INACTIVE_ONLY never runs. Inactive partitions/tables are starved,
so BE scale-out rebalancing becomes very slow.
- runAfterCatalogReady() always called statRouteInfo() twice and rebuilt
active tablet ids every round. These full-route/stat rebuilds allocate many
temporary maps/sets, increasing young GC frequency.
Fix:
- Run the second statRouteInfo() only when smooth-upgrade migration actually
moved tablets.
- Add a starvation breaker: after N consecutive active-unbalanced rounds,
force one INACTIVE_ONLY round.
- Refresh active tablet snapshot by configurable interval (default 60s)
instead of every round.
Config:
- cloud_active_tablet_ids_refresh_interval_second (default 60)
- cloud_active_unbalanced_force_inactive_after_rounds (default 10)
Test:
- Add unit tests for forced inactive trigger, active snapshot refresh
interval, and migrate no-op path.
### 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. -->
- [ ] Regression test
- [x] 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:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] 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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