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From Jeff Hammerbacher <ham...@cloudera.com>
Subject Re: Decommission multiple datanodes at a time?
Date Wed, 01 Sep 2010 07:35:00 GMT
Not sure if it's up to date, but the FAQ attempts to answer this question:
http://wiki.apache.org/hadoop/FAQ#A17.

On Tue, Aug 31, 2010 at 1:04 PM, Allen Wittenauer
<awittenauer@linkedin.com>wrote:

>
> On Aug 31, 2010, at 12:58 PM, jiang licht wrote:
>
> > Is the number of nodes to be decommissioned bounded by replication
> factor?
>
> No, it is bounded mainly by network bandwidth and NN/DN RPC call rate.
> I've seen decommissions of like 400 nodes at once.
>
>

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