Xiaoccer opened a new pull request, #12988:
URL: https://github.com/apache/doris/pull/12988
# Proposed changes
## Problem summary
In the VOlapScanNode:: transfer_thread (), the __transfer_done_ should be
locked for modification before calling the cv.notify_all(). Otherwise, the
thread of VOlapScanNode::get_next() may not know the __transfer_done_ has been
modified, and lose the notification before calling cv.wait_for(), which will
cause the thread to wait for 1s. We can find that OlapScanNode has locked the
__transfer_done_ in the same way.
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [X] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [X] No
- [ ] No Need
3. Has document been added or modified:
- [ ] Yes
- [X] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [X] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [X] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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