hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alejandro Abdelnur (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7549) Use JDK ServiceLoader mechanism to find FileSystem implementations
Date Tue, 14 Feb 2012 23:13:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208104#comment-13208104
] 

Alejandro Abdelnur commented on HADOOP-7549:
--------------------------------------------

@Suresh, If both impls using the same scheme are defined as services, then it is undetermined
(by JDK specs). If one is defined as service an the other in the configuration, the one in
the configuration wins. If both are defined in the configuration, the latter one wins.
                
> 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).

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message