Github user chtyim commented on a diff in the pull request:
https://github.com/apache/incubator-twill/pull/52#discussion_r34296089
--- Diff: twill-api/src/main/java/org/apache/twill/api/TwillController.java
---
@@ -61,4 +63,22 @@
*/
@Nullable
ResourceReport getResourceReport();
+
+ /**
+ * Restart all instances of a particular {@link TwillRunnable} instance.
+ *
+ * @param runnable The name of the runnable to restart.
+ * @return A {@link Future} that will be completed when the restart
operation has been done. Either successful
+ * or fail, the instance of the future will contains the
information.
+ */
+ Future<List<UpdateRunnableStateResult>>
restartAllRunnableInstances(String runnable);
+
+ /**
+ *
+ * @param runnableToInstanceIds A map of runnable ID to list of instance
IDs to be restarted.
+ * @return A {@link Future} that will be completed when the restart
operation has been done.
+ * Either successful or fail, the instance of the future will
contains the information.
+ */
+ Future<Map<String, List<UpdateRunnableStateResult>>>
restartRunnableInstances(
--- End diff --
So this one is for starting multiple runnable instances, right? Would it be
more convenient to have a method that restart runnable instance(s)? something
like:
```restart(String runnable, int instanceId, int...moreInstanceIds)```
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