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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2429) Shell does not clean up JLine ConsoleReader, leaks threads
Date Wed, 05 Mar 2014 16:50:42 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13921032#comment-13921032
] 

Josh Elser commented on ACCUMULO-2429:
--------------------------------------

Sorry for dbl comment: meant from a "should this also be fixed in those earlier branches"
standpoint. Anything to make those tests better is good IMO. 

> Shell does not clean up JLine ConsoleReader, leaks threads
> ----------------------------------------------------------
>
>                 Key: ACCUMULO-2429
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2429
>             Project: Accumulo
>          Issue Type: Bug
>          Components: shell
>            Reporter: Bill Havanki
>            Assignee: Bill Havanki
>              Labels: memory-leak, shell, threads
>             Fix For: 1.6.0, 1.7.0
>
>
> The shell uses the JLine {{ConsoleReader}} class. That class spawns a thread on construction
(tsk-tsk) for its internal non-blocking input stream representation. If the {{ConsoleReader}}
is not shut down properly, the thread keeps running. This is particularly a problem when running
{{ShellServerIT}} under 1.6 and later; the JVM can run out of memory to allocate threads and
fail the test.



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