xds: fix race condition in ext_proc client interceptor halfClose - #12948
Open
kannanjgithub wants to merge 1 commit into
Open
xds: fix race condition in ext_proc client interceptor halfClose#12948kannanjgithub wants to merge 1 commit into
kannanjgithub wants to merge 1 commit into
Conversation
Fixes a race condition in ExternalProcessorClientInterceptor$DataPlaneClientCall.halfClose() that can cause the call to hang when the external processor stream completes concurrently. If the external processor stream completes (marking state as COMPLETED and setting passThroughMode to true) after halfClose() has already checked passThroughMode (seeing false), halfClose() would subsequently see the state as COMPLETED and return early without invoking proceedWithHalfClose(). This commit fixes the race by re-checking passThroughMode inside the isCompleted() block in halfClose(), ensuring we proceed with half-close if pass-through mode was enabled late.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Fixes a race condition in
ExternalProcessorClientInterceptor$DataPlaneClientCall.halfClose()that can cause the call to hang when the external processor stream completes concurrently.If the external processor stream completes (marking state as COMPLETED and setting passThroughMode to true) after
halfClose()has already checkedpassThroughMode(seeing false), halfClose() would subsequently see the state as COMPLETED and return early without invokingproceedWithHalfClose().This commit fixes the race by re-checking passThroughMode inside the
isCompleted()block inhalfClose(), ensuring we proceed with half-close if pass-through mode was enabled late.