m-trieu commented on code in PR #32774:
URL: https://github.com/apache/beam/pull/32774#discussion_r1801598509
##########
runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/windmill/client/grpc/GrpcGetDataStream.java:
##########
@@ -273,10 +288,24 @@ public void
onHeartbeatResponse(List<Windmill.ComputationHeartbeatResponse> resp
@Override
public void sendHealthCheck() {
if (hasPendingRequests()) {
- send(StreamingGetDataRequest.newBuilder().build());
+ send(HEALTH_CHECK_REQUEST);
}
}
+ @Override
+ protected void shutdownInternal() {
+ // Stream has been explicitly closed. Drain pending input streams and
request batches.
+ // Future calls to send RPCs will fail.
+ pending.values().forEach(AppendableInputStream::cancel);
Review Comment:
add a check where we add to the map
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