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From Ian Brooks <i.bro...@sensewhere.com>
Subject Upgrade to 2.4
Date Fri, 30 May 2014 09:54:26 GMT
Hi,

I though i'd give hadoop 2.4 a try as the improvements to rolling upgrades would be useful
to us. Unless i'm missing something, I can't see how to upgrade from 2.3 to 2.4 

-rollingUpgrade doesnt work as the old namenode doesn't understand the command and -upgrade
is no longer available.

I had a quick google and can't find any documentation on this upgrade, does anyone know how
its supposed to be done?

-Ian

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