Forwardport PR #16671 to main: PipelineBusV2 deadlock proofing #16682
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yaauie
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donoghuc
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Nov 19, 2024
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CI failure unrelated. Filed https://github.com/elastic/logstash/pull/16695/files to address that. This port is clean and ready to go.
* pipeline bus: add deadlock test for unlisten/unregisterSender * pipeline bus: eliminate deadlock Moves the sync-to-notify out of the `AddressStateMapping#mutate`'s effective synchronous block to eliminate a race condition where unlistening to an address and unregistering a sender could deadlock. It is safe to notify an AddressState's attached input without exclusive access to the AddressState, because notifying an input that has since been disconnected is net zero harm. (cherry picked from commit 8af6343)
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I've rebased the PR against main, should be green soon. |
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Ah, I was just about to ask about that. I had tried to reload the failed cell thinking maybe it would try to test changes against the current head of main. Seems like instead it just tests based on the head of the branch being tested. |
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Forwardport PR #16671 to main branch, original message:
Release notes
What does this PR do?
PipelineBus#unlistenandPipelineBus#unregisterSenderPipelineBusV2Why is it important/What is the impact to the user?
Failing to shut down is not good.
Checklist
[ ] I have made corresponding changes to the documentation[ ] I have made corresponding change to the default configuration files (and/or docker env variables)How to test this PR locally
Related issues