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https://issues.apache.org/jira/browse/FLINK-29339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17606839#comment-17606839
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Yun Gao commented on FLINK-29339:
---------------------------------
[~xuannan] Could you have a look at this issue~?
> JobMasterPartitionTrackerImpl#requestShuffleDescriptorsFromResourceManager
> blocks main thread
> ---------------------------------------------------------------------------------------------
>
> Key: FLINK-29339
> URL: https://issues.apache.org/jira/browse/FLINK-29339
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.16.0
> Reporter: Chesnay Schepler
> Priority: Critical
>
> {code:java}
> private List<ShuffleDescriptor> requestShuffleDescriptorsFromResourceManager(
> IntermediateDataSetID intermediateDataSetID) {
> Preconditions.checkNotNull(
> resourceManagerGateway, "JobMaster is not connected to
> ResourceManager");
> try {
> return this.resourceManagerGateway
> .getClusterPartitionsShuffleDescriptors(intermediateDataSetID)
> .get(); // <-- there's your problem
> } catch (Throwable e) {
> throw new RuntimeException(
> String.format(
> "Failed to get shuffle descriptors of intermediate
> dataset %s from ResourceManager",
> intermediateDataSetID),
> e);
> }
> }
> {code}
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