arunpandianp commented on code in PR #36170:
URL: https://github.com/apache/beam/pull/36170#discussion_r2353338287
##########
runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/windmill/client/ResettableThrowingStreamObserver.java:
##########
@@ -115,33 +115,48 @@ public void onNext(T t) throws StreamClosedException,
WindmillStreamShutdownExce
logger.debug("Stream was shutdown during send.",
cancellationException);
return;
}
- }
+ if (delegateStreamObserver == delegate) {
+ if (isCurrentStreamClosed) {
+ logger.debug("Stream is already closed when encountering error
with send.");
+ return;
+ }
+ isCurrentStreamClosed = true;
+ }
- try {
- delegate.onError(cancellationException);
- } catch (IllegalStateException onErrorException) {
- // The delegate above was already terminated via onError or onComplete.
- // Fallthrough since this is possibly due to queued onNext() calls
that are being made from
- // previously blocked threads.
- } catch (RuntimeException onErrorException) {
- logger.warn(
- "Encountered unexpected error {} when cancelling due to error.",
- onErrorException,
- cancellationException);
+ // Either the no longer active observer which we attempt a reset and
handle errors
+ // or the current observer that still requires closing.
+ try {
+ delegate.onError(cancellationException);
Review Comment:
Thansk, sounds good.
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