Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/750#discussion_r38270665
--- 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 assume that the stops should be idempotent. But I agree if we document
and check that all `cancel` calls are non-blocking, then it should work as well.
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