[
https://issues.apache.org/jira/browse/TWILL-240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16120602#comment-16120602
]
ASF GitHub Bot commented on TWILL-240:
--------------------------------------
Github user chtyim commented on a diff in the pull request:
https://github.com/apache/twill/pull/58#discussion_r132295847
--- Diff:
twill-yarn/src/main/java/org/apache/twill/internal/appmaster/ApplicationMasterService.java
---
@@ -181,7 +189,6 @@ public Reader getInput() throws IOException {
}
@SuppressWarnings("unchecked")
- @Nullable
private EventHandler createEventHandler(TwillSpecification twillSpec)
throws ClassNotFoundException {
// Should be able to load by this class ClassLoader, as they packaged
in the same jar.
EventHandlerSpecification handlerSpec = twillSpec.getEventHandler();
--- End diff --
if `handlerSpec` is `null`, you still want to return a no-op handler, right?
> Improve EventHandler to handle more application lifecycle events
> ----------------------------------------------------------------
>
> Key: TWILL-240
> URL: https://issues.apache.org/jira/browse/TWILL-240
> Project: Apache Twill
> Issue Type: New Feature
> Reporter: Chengfeng Mao
> Assignee: Chengfeng Mao
> Fix For: 0.12.0
>
>
> Application Master should be able to run application specific code when
> certain lifecycle events happen by calling methods from EventHandler. For
> instance, when the app first starts, completes, aborts and etc.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
