Mailing-List: contact hadoop-dev-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hadoop-dev@lucene.apache.org
Message-ID: <17105327.1156780763385.JavaMail.jira@brutus>
Date: Mon, 28 Aug 2006 08:59:23 -0700 (PDT)
From: "Jean-Baptiste Quenot (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Commented: (HADOOP-366) Should be able to specify more than
 one jar into a JobConf file
In-Reply-To: <32857334.1153138454140.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

    [ http://issues.apache.org/jira/browse/HADOOP-366?page=comments#action_12430995 ] 
            
Jean-Baptiste Quenot commented on HADOOP-366:
---------------------------------------------

In fact Owen's point is to say that you can put jars in the jar.

Is there any reason for this "hack" to unpack mapred.jar in TaskRunner and look for a "lib" directory containing jars?  Isn't that too much of magic?

Would it be a viable option to allow MapReduce tasks to take a list of jars instead?  Or is there a compelling reason to only give a single Jar?

> Should be able to specify more than one jar into a JobConf file
> ---------------------------------------------------------------
>
>                 Key: HADOOP-366
>                 URL: http://issues.apache.org/jira/browse/HADOOP-366
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.4.0
>            Reporter: Thomas FRIOL
>
> A job should be able to specify more than one jar file into its JobConf file because sometimes custom Map and Reduce classes or just InputFormat classes uses objects coming from other jar files. For now, we have to build a unique jar to make Hadoop mapreduce operations works.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira