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From "thilee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8885) Need to add fs shim to use QFS
Date Fri, 05 Oct 2012 23:16:03 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

thilee updated HADOOP-8885:

    Attachment: HADOOP-8885-branch-1.patch

Attached is the patch for *branch-1*. 
In addition to applying the patch, you would need to do two things:

(1) To compile: you need to copy the qfs access JAR (qfs-<version>.jar) to the branch-1
_lib_ directory.
(2) To run: you need to have the directory of libqfs*.so in your {{LD_LIBRARY_PATH}}.

The tarball containing the JAR file and the shared libraries can be downloaded here: (please
download the one that matches your platform, untar and look inside _lib_ directory) 

The JAR file should eventually be integrated to Apache Hadoop, under _lib_ directory, as qfs-1.0.0.jar.

> Need to add fs shim to use QFS
> ------------------------------
>                 Key: HADOOP-8885
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8885
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs
>    Affects Versions: 1.0.2, 1.0.3, 0.23.3, 2.0.0-alpha, 2.0.1-alpha
>            Reporter: thilee
>         Attachments: HADOOP-8885-branch-1.patch
>   Original Estimate: 168h
>  Remaining Estimate: 168h
> Quantcast has released QFS 1.0 (http://quantcast.github.com/qfs), a C++ distributed filesystem
based on Kosmos File System(KFS). QFS comes with various feature, performance, and stability
improvements over KFS.
> A hadoop 'fs' shim needs be added to support QFS through 'qfs://' URIs.

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