wei liu a839d94c9e
fix: balance checker may enter infinite normal balance loop after balance suspension (#41195)
issue: #41194
- Refactor hasUnbalancedCollection flag handling to function scope
- Ensure tracking sets clearance when no balance needed
- Add deferred cleanup for both normal/stopping balance paths
- Add unit tests for collection tracking scenarios

The changes ensure tracking sets (normalBalanceCollectionsCurrentRound
and stoppingBalanceCollectionsCurrentRound) are properly cleared when:
- All collections in current round are balanced
- Balance checks return early due to unready targets
- Balance feature flags are disabled

Signed-off-by: Wei Liu <wei.liu@zilliz.com>
2025-04-10 15:22:29 +08:00
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