feiniaofeiafei opened a new pull request, #64833:
URL: https://github.com/apache/doris/pull/64833
### What problem does this PR solve?
Issue Number: N/A
Related PR: N/A
Problem Summary: Workload policies updated a connection SessionVariable from
the policy daemon while the connection thread could record or revert
statement-scoped variables. Concurrent access to sessionOriginValue could throw
ConcurrentModificationException, and a policy value could be overwritten by
statement cleanup. Serialize session variable access for each command, apply
policy updates only while the connection is idle, and explicitly exclude policy
updates from statement rollback tracking.
### Release note
None
### Check List (For Author)
- Test: Unit Test
- ./run-fe-ut.sh --run org.apache.doris.qe.ConnectContextTest
- mvn checkstyle:check -pl fe-core
- Behavior changed: Yes (policy session-variable updates wait for an idle
connection)
- 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
- [ ] 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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