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From "Alejandro Abdelnur (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7549) Use JDK ServiceLoader mechanism to find FileSystem implementations
Date Thu, 19 Apr 2012 21:46:42 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alejandro Abdelnur updated HADOOP-7549:
---------------------------------------

    Attachment: HDFS-7549v3.patch

rebasing to trunk to remove patch complains.

I've run test-patch locally with and without the patch and I get the same number of warnings:

{code}
    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 2 new or modified test files.

    -1 javadoc.  The javadoc tool appears to have generated 8 warning messages.

    -1 javac.  The applied patch generated 1707 javac compiler warnings (more than the trunk's
current 1706 warnings).

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    -1 findbugs.  The patch appears to introduce 20 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.
{code}
                
> Use JDK ServiceLoader mechanism to find FileSystem implementations
> ------------------------------------------------------------------
>
>                 Key: HADOOP-7549
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7549
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 0.23.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>             Fix For: 0.24.0
>
>         Attachments: HADOOP-7549v1.patch, HADOOP-7549v2.patch
>
>
> Currently configuring FileSystem implementations must be done by declaring the FileSystem
class in the Hadoop configuration files (core-default.xml, ...).
> Using JDK ServiceLoader mechanism this configuration step can be avoided. Adding the
JAR file with the additional FileSystem implementation would suffice. 
> This is similar to what is being proposed for compression codecs (HADOOP-7350).

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