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Subject [GitHub] [flink] zhijiangW commented on a change in pull request #8133: [FLINK-12146][network] Remove unregister task from NetworkEnvironment to simplify the interface of ShuffleService
Date Wed, 17 Apr 2019 07:45:09 GMT
zhijiangW 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_r276116342
 
 

 ##########
 File path: flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/Task.java
 ##########
 @@ -882,6 +878,47 @@ else if (transitionState(current, ExecutionState.FAILED, t)) {
 		}
 	}
 
+	private void releaseNetworkResources() {
+		LOG.debug("Release task {} network resources (state: {}).", taskNameWithSubtask, getExecutionState());
+
+		for (ResultPartition partition : producedPartitions) {
+			taskEventDispatcher.unregisterPartition(partition.getPartitionId());
+		}
+
+		closeOrFailNetworkResources(isCanceledOrFailed(), getFailureCause());
+	}
+
+	/**
+	 * There are two scenarios to release the network resources. One is from {@link TaskCanceler}
to early
+	 * release partitions and gates. Another is from task thread during task exiting.
+	 *
+	 * @param isFailed true if the task has failed.
+	 * @param cause the exception that caused the task to fail, or null, if the task has not
failed.
+	 */
+	private void closeOrFailNetworkResources(boolean isFailed, @Nullable Throwable cause) {
 
 Review comment:
   The introduced `TaskCloser` seems better, agree with it.

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