[jira] [Commented] (HADOOP-9737) JarFinder#getJar should delete the jar file upon destruction of the JVM

["Harsh J (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-9737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709794#comment-13709794 ] 

Harsh J commented on HADOOP-9737:
---------------------------------

This sounds fine to me. Would you like to submit a patch as well?

bq. In order to preserve backwards compatibility a configuration setting could be implemented, e.g. test.build.dir.purge.on.exit

The specific part you point to is specifically existing for tests alone. If the delete-on-exit change does not break any tests currently, then it is fine to go in as-is. We do not need configurability there. MR clients use a similar path and do delete created jars on regular exit.
                
> JarFinder#getJar should delete the jar file upon destruction of the JVM
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-9737
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9737
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 2.0.0-alpha
>            Reporter: Esteban Gutierrez
>
> Once {{JarFinder.getJar()}} is invoked by a client app, it would be really useful to destroy the generated JAR after the JVM is destroyed by setting {{tempJar.deleteOnExit()}}. In order to preserve backwards compatibility a configuration setting could be implemented, e.g. {{test.build.dir.purge.on.exit}}

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