Github user aljoscha commented on a diff in the pull request: https://github.com/apache/flink/pull/750#discussion_r38516254 --- Diff: flink-runtime/src/main/scala/org/apache/flink/runtime/taskmanager/TaskManager.scala --- @@ -411,6 +411,23 @@ class TaskManager( log.debug(s"Cannot find task to fail for execution ${executionID})") } + // stops a task + case StopTask(executionID) => + val task = runningTasks.get(executionID) + if (task != null) { + try { + task.stopExecution() --- End diff -- I think that's already how sources are supposed to behave. Kafka does it as well, the only thing that needs to be changed is removing the `consumer.shutdown()` call from `cancel()`.
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