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From "Milind A Bhandarkar" <mili...@yahoo-inc.com>
Subject Re: [jira] Commented: (HADOOP-1622) Hadoop should provide a way to allow the user to specify jar file(s) the user job depends on
Date Sun, 09 Mar 2008 01:42:06 GMT
Great ! Looking forward to a patch soon.


----- Original Message -----
From: Dennis Kubes (JIRA) <jira@apache.org>
To: core-dev@hadoop.apache.org <core-dev@hadoop.apache.org>
Sent: Sat Mar 08 17:07:46 2008
Subject: [jira] Commented: (HADOOP-1622) Hadoop should provide a way to allow the user to
specify jar file(s) the user job depends on


    [ https://issues.apache.org/jira/browse/HADOOP-1622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576671#action_12576671
] 

Dennis Kubes commented on HADOOP-1622:
--------------------------------------

No updates yet, but I should have time to start working on this again in the next couple of
days, right after I finish some working on converting hadoop RPC to NIO.

> Hadoop should provide a way to allow the user to specify jar file(s) the user job depends
on
> --------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1622
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1622
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Runping Qi
>            Assignee: Dennis Kubes
>         Attachments: hadoop-1622-4-20071008.patch, HADOOP-1622-5.patch, HADOOP-1622-6.patch,
HADOOP-1622-7.patch, HADOOP-1622-8.patch, HADOOP-1622-9.patch, multipleJobJars.patch, multipleJobResources.patch,
multipleJobResources2.patch
>
>
> 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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