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https://issues.apache.org/jira/browse/TWILL-240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16117275#comment-16117275
 ] 

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_r131762593
  
    --- Diff: 
twill-yarn/src/test/java/org/apache/twill/yarn/ProvisionTimeoutTestRun.java ---
    @@ -85,13 +105,29 @@ public TimeoutAction 
launchTimeout(Iterable<TimeoutEvent> timeoutEvents) {
             return TimeoutAction.recheck(10, TimeUnit.SECONDS);
           }
         }
    +
    +    @Override
    +    public void aborted() {
    +      try {
    +        new 
File(context.getSpecification().getConfigs().get("parentFolderPath") + 
File.separator
    --- End diff --
    
    When constructing file, usually not to use `File.separator`, but instead 
use the constructor `File(File parent, String path)`.


> 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.



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