scwhittle commented on a change in pull request #17162:
URL: https://github.com/apache/beam/pull/17162#discussion_r833684035
##########
File path:
runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/windmill/GrpcWindmillServer.java
##########
@@ -936,7 +936,11 @@ protected void onResponse(StreamingGetWorkResponseChunk
chunk) {
.execute(
() -> {
try {
- send(extension);
+ synchronized (this) {
+ if (!clientClosed.get()) {
Review comment:
To keep contract the same for other call-sites you could throw
IllegalStateException yourself if the client is closed instead of relying on
grpc to do so (since that adds delay it sounds like).
LGTM though if you want to put a comment/TODO for that to try to get this in
the next release. You'll have to find someone else to merge though.
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