mrhhsg opened a new pull request, #66385:
URL: https://github.com/apache/doris/pull/66385
### What problem does this PR solve?
Issue Number: None
Problem Summary: A delayed dependency wake-up can leave a terminal pipeline
task in the runnable queue. The stale task may be executed again after its
shared operator state has been released, causing invalid virtual calls or
use-after-free.
This change:
- keeps queued tasks and their fragment contexts alive until the queue entry
is consumed;
- stores dependency waiters weakly and pins them only while delivering a
wake-up;
- atomically claims PipelineX tasks and drops terminal tasks before
accessing execution state;
- drains pending queue entries outside the queue lock during shutdown.
### Release note
None
### Check List (For Author)
- Test:
- Unit Test: `./run-be-ut.sh --run
--filter='TaskQueueTest.*:TaskSchedulerTest.*' -j 24`
- Regression test: Not required for this scheduler lifecycle fix
- Behavior changed: No
- Does this need documentation: No
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
