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Date: Fri, 9 Sep 2016 09:16:21 +0000 (UTC)
From: "Yechao Chen (JIRA)" <jira@apache.org>
To: issues@hive.apache.org
Message-ID: <JIRA.13003792.1473411892000.529897.1473412581113@Atlassian.JIRA>
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Subject: [jira] [Updated] (HIVE-14727) llap-server may case file descriptor
 leak in BuddyAllocator class
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archived-at: Fri, 09 Sep 2016 09:16:22 -0000


     [ https://issues.apache.org/jira/browse/HIVE-14727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yechao Chen updated HIVE-14727:
-------------------------------
    Status: Patch Available  (was: In Progress)

[~prasanth_j] [~sershe]   may someone please review this small patch?

> llap-server may case file descriptor leak in BuddyAllocator class
> -----------------------------------------------------------------
>
>                 Key: HIVE-14727
>                 URL: https://issues.apache.org/jira/browse/HIVE-14727
>             Project: Hive
>          Issue Type: Bug
>          Components: llap
>    Affects Versions: 2.2.0
>            Reporter: Yechao Chen
>            Assignee: Yechao Chen
>         Attachments: HIVE-14727.patch
>
>
> llap-server,the method preallocate(int) of  BuddyAllocator may case file descriptor leak when FileChannel map allocate memory error.
> the code:
>         //here if failed
>          ByteBuffer rwbuf = rwf.getChannel().map(MapMode.READ_WRITE, 0, arenaSize);
>         // A mapping, once established, is not dependent upon the file channel that was used to
>         // create it. delete file and hold onto the map
>        //can not close() and delete file
>         rwf.close();
>         rf.delete();


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