m-trieu commented on code in PR #32774:
URL: https://github.com/apache/beam/pull/32774#discussion_r1837624075
##########
runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/windmill/client/AbstractWindmillStream.java:
##########
@@ -278,23 +318,19 @@ public String backendWorkerToken() {
}
@Override
- public void shutdown() {
- if (isShutdown.compareAndSet(false, true)) {
- requestObserver()
- .onError(new WindmillStreamShutdownException("Explicit call to
shutdown stream."));
+ public final void shutdown() {
+ // Don't lock on "this" before poisoning the request observer as allow IO
to block shutdown.
Review Comment:
done
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