deardeng opened a new pull request, #66281:
URL: https://github.com/apache/doris/pull/66281

   Problem Summary: In Cloud mode, a per-query SET_VAR(cloud_cluster=...) 
temporarily changes the session variable used by query scheduling. StmtExecutor 
reverted this value before AuditLogHelper built the audit event, so 
ComputeGroupName and related per-Compute-Group query, error, and latency 
metrics were attributed to the session's original Compute Group even though the 
query ran on the hinted group. Preserve the query-scoped effective Compute 
Group before reverting SET_VAR and use it for both audit events and metrics, 
with fallback to the existing session resolution path.
   
   ### Release note
   
   Fix ComputeGroupName in FE audit logs and Compute Group query metrics for 
per-query cloud_cluster/compute_group hints.
   
   ### Check List (For Author)
   
   - Test: ./build.sh --fe -j 2; ./run-fe-ut.sh --run 
org.apache.doris.qe.AuditLogHelperTest; mvn checkstyle:check -pl fe-core; git 
diff --check. The Cloud regression case was added but not run because this 
worktree has no running Doris cluster.
   
       - Regression test / Unit Test / Manual test / No need to test (with 
reason)
   
   - Behavior changed: Yes (audit and metric attribution corrected)
   
   - 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. -->
       - [x] 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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