morningman opened a new pull request, #43051:
URL: https://github.com/apache/doris/pull/43051
### What problem does this PR solve?
Related PR: #42950
Problem Summary:
PR #42950 change some logic in ExportJob, by removing the
`taskIdToExecutor`, which is
a thread safe ConcurrentHashMap.
But there is a problem that, when cancelling a export job, it will clear the
`jobExecutorList` in ExportJob,
and meanwhile, this `jobExecutorList` may being traversed when creating the
export job,
causing concurrent modification exception.
This PR fix it by locking the writeLock of ExportMgr when cancelling the
export job.
### Check List (For Committer)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [x] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [x] Previous test can cover this change.
- [ ] No colde 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 -->
- Release note
<!-- bugfix, feat, behavior changed need a release note -->
<!-- Add one line release note for this PR. -->
None
### 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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