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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7694) FSDataInputStream should support "unbuffer"
Date Thu, 12 Feb 2015 18:43:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Colin Patrick McCabe updated HDFS-7694:
---------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.7.0
           Status: Resolved  (was: Patch Available)

> FSDataInputStream should support "unbuffer"
> -------------------------------------------
>
>                 Key: HDFS-7694
>                 URL: https://issues.apache.org/jira/browse/HDFS-7694
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.7.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>             Fix For: 2.7.0
>
>         Attachments: HDFS-7694.001.patch, HDFS-7694.002.patch, HDFS-7694.003.patch, HDFS-7694.004.patch,
HDFS-7694.005.patch
>
>
> For applications that have many open HDFS (or other Hadoop filesystem) files, it would
be useful to have an API to clear readahead buffers and sockets.  This could be added to the
existing APIs as an optional interface, in much the same way as we added setReadahead / setDropBehind
/ etc.



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