Github user mjsax commented on a diff in the pull request:
https://github.com/apache/flink/pull/750#discussion_r38204935
--- 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()
+ sender ! new TaskOperationResult(executionID, true)
+ } catch {
+ case t: Throwable =>
+ sender ! new TaskOperationResult(executionID,
false, t.getMessage())
--- End diff --
But using `StringUtils.stringifyException` and send back a
`TaskOperationResult` should work for any exception. Or does the discussion
about `StoppingFailure` vs throwing exception affect this code, too? (is, not
returning a `TaskOperationResult` on failure but throwing an exception)
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