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Subject [GitHub] [flink] azagrebin commented on a change in pull request #8133: [FLINK-12146][network] Remove unregister task from NetworkEnvironment to simplify the interface of ShuffleService
Date Fri, 12 Apr 2019 15:31:01 GMT
azagrebin commented on a change in pull request #8133: [FLINK-12146][network] Remove unregister
task from NetworkEnvironment to simplify the interface of ShuffleService
URL: https://github.com/apache/flink/pull/8133#discussion_r274957657
 
 

 ##########
 File path: flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/Task.java
 ##########
 @@ -879,6 +875,24 @@ else if (transitionState(current, ExecutionState.FAILED, t)) {
 		}
 	}
 
+	private void releaseNetworkResources() throws Exception {
+		LOG.debug("Release task {} network resources (state: {}).",
+			taskInfo.getTaskNameWithSubtasks(), getExecutionState());
+
+		for (ResultPartition partition : producedPartitions) {
+			taskEventDispatcher.unregisterPartition(partition.getPartitionId());
+			partition.close();
 
 Review comment:
   but I think it would be ok, if we actually add one more method `closeNetworkResources`
and put there partition/gate closings from `TaskCanceler.run` and use here in `releaseNetworkResources`
after `taskEventDispatcher.unregisterPartition` and `if () partition.fail` loops. We will
eliminate code duplication and improve log/exception handling in former `unregisterTask`.

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