deardeng opened a new pull request, #68833:
URL: https://github.com/apache/doris/pull/68833

   Problem Summary: The FE cloud instance checker updated failed 
synchronization timestamps per sub-group and only validated newly created 
virtual compute groups. A healthy sibling could clear a real failure, existing 
groups could acquire missing sub-groups without being tracked, and drop or 
rename left stale timestamps. Evaluate the complete sub-group set on every 
synchronization cycle and clear state when all references recover or the 
virtual group leaves its old lifecycle identity.
   
   ### Release note
   
   None
   
   ### Check List (For Author)
   
   - Test: Unit Test
       - `./run-fe-ut.sh --run 
org.apache.doris.cloud.catalog.CloudInstanceStatusCheckerTest` (8 tests passed)
       - `cd fe && mvn checkstyle:check -pl fe-core` (0 violations)
   - Behavior changed: Yes (VCG failed synchronization timestamps now follow 
create, update, recovery, rename, and drop)
   - Does this need documentation: No
   
   ### 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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