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From Jarred Li <jarred...@gmail.com>
Subject Re: Changing configuration in mapred-site.xml
Date Sat, 28 Dec 2013 00:06:46 GMT
Hi,

It depends on which prop you are changing. To be safe, you need change it in all nodes.



发自我的 iPhone

> 在 2013年12月28日,7:33,Pushparaj Motamari <pushparajxa@gmail.com> 写道:
> 
> Hi,
> 
> I am working on a Hadoop cluster with 5 datanodes, and 1(NameNode+Job Tracker) . If I
would like to add a property to mapred-site.xml, then I need to do that on all datanodes or
doing it on JobTracker suffice?
> 
> I am using hadoop-0.20.203.0rc1 version of hadoop
> 
> Thanks

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