liyafan82 commented on a change in pull request #8934: [FLINK-12628][Runtime /
Coordination] Check test failure if partitionhas no consumers in
Execution.getPartitionMaxParallelism
URL: https://github.com/apache/flink/pull/8934#discussion_r299282016
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/executiongraph/Execution.java
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@@ -679,14 +678,10 @@ public void setInitialState(@Nullable
JobManagerTaskRestore taskRestore) {
}
private static int
getPartitionMaxParallelism(IntermediateResultPartition partition) {
- // TODO consumers.isEmpty() only exists for test, currently
there has to be exactly one consumer in real jobs!
final List<List<ExecutionEdge>> consumers =
partition.getConsumers();
- int maxParallelism =
KeyGroupRangeAssignment.UPPER_BOUND_MAX_PARALLELISM;
- if (!consumers.isEmpty()) {
- List<ExecutionEdge> consumer = consumers.get(0);
- ExecutionJobVertex consumerVertex =
consumer.get(0).getTarget().getJobVertex();
- maxParallelism = consumerVertex.getMaxParallelism();
- }
+ List<ExecutionEdge> consumer = consumers.get(0);
Review comment:
Maybe not. In my local environment, no exception was thrown when we ignore
the case for the consumer being empty. Let's see if we can reproduce it in
Travis.
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