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Date: Tue, 17 Jul 2007 11:53:04 -0700 (PDT)
From: "Runping Qi (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Created: (HADOOP-1622) Hadoop should provide a way to allow
 the user to specify jar file(s) the user job depends on
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Hadoop should provide a way to allow the user to specify jar file(s) the user job depends on
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                 Key: HADOOP-1622
                 URL: https://issues.apache.org/jira/browse/HADOOP-1622
             Project: Hadoop
          Issue Type: Improvement
            Reporter: Runping Qi


More likely than not, a user's job may depend on multiple jars.
Right now, when submitting a job through bin/hadoop, there is no way for the user to specify that. 
A walk around for that is to re-package all the dependent jars into a new jar or put the dependent jar files in the lib dir of the new jar.
This walk around causes unnecessary inconvenience to the user. Furthermore, if the user does not own the main function 
(like the case when the user uses Aggregate, or datajoin, streaming), the user has to re-package those system jar files too.
It is much desired that hadoop provides a clean and simple way for the user to specify a list of dependent jar files at the time 
of job submission. Someting like:

bin/hadoop .... --depending_jars j1.jar:j2.jar 


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