XComp commented on code in PR #21019:
URL: https://github.com/apache/flink/pull/21019#discussion_r993681403
##########
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java:
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@@ -298,6 +303,27 @@ private JobGraph createJobGraph() {
return jobGraph;
}
+ private void waitForSerializationFuturesAndUpdateJobVertices()
+ throws ExecutionException, InterruptedException {
+ for (JobVertex jobVertex : jobGraph.getVertices()) {
+ final
List<CompletableFuture<SerializedValue<OperatorCoordinator.Provider>>>
+ futuresForJobVertex =
coordinatorSerializationFutures.remove(jobVertex.getID());
+ if (futuresForJobVertex == null) {
+ LOG.warn(
+ "No OperatorCoordinator creator serialized for
JobVertex {}.",
+ jobVertex.getID());
+ } else {
+ FutureUtils.combineAll(futuresForJobVertex)
+ .get()
+ .forEach(jobVertex::addOperatorCoordinator);
+ }
+ }
+ Preconditions.checkState(
+ coordinatorSerializationFutures.isEmpty(),
+ "There are still serialization futures not processed for
JobVertex instances: {}",
Review Comment:
I rephrased the condition that should never occur... Were you suggesting
that we should still wait for the concurrent operations to be completed?
:thinking: I didn't implement that because this specific state would mean that
there's some bug somewhere else. The Precondition should trigger the
`IllegalStateException` causing the JobGraph creation to fail.
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