Github user chtyim commented on a diff in the pull request:
https://github.com/apache/twill/pull/14#discussion_r83079571
--- Diff: twill-api/src/main/java/org/apache/twill/api/TwillController.java
---
@@ -89,4 +90,30 @@
* @return A {@link Future} that will be completed when the restart
operation has been done.
*/
Future<String> restartInstances(String runnable, int instanceId, int...
moreInstanceIds);
+
+ /**
+ * Set the root log level for Twill applications in all containers.
+ *
+ * @param logLevel The log level for the root logger to change.
+ * @return A {@link Future} that will be completed when the set log
level operation has been done.
--- End diff --
What is the `String` in the resulting `Future` represents? Is it the app
name or something else?
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