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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-16778) LLAP IO: better refcount management
Date Thu, 08 Jun 2017 21:34:20 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16778?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HIVE-16778:
------------------------------------
    Fix Version/s: 3.0.0

> LLAP IO: better refcount management
> -----------------------------------
>
>                 Key: HIVE-16778
>                 URL: https://issues.apache.org/jira/browse/HIVE-16778
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16778.patch, HIVE-16778.patch
>
>
> Looks like task cancellation can close the UGI, causing the background thread to die
with an exception, leaving a bunch of unreleased cache buffers.
> Overall, it's probably better to modify how refcounts are handled - if there's some bug
in the code we don't want to leak them. 



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