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Hadoop >> mail # user >> Decommission multiple datanodes at a time?

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Re: Decommission multiple datanodes at a time?
Not sure if it's up to date, but the FAQ attempts to answer this question:

On Tue, Aug 31, 2010 at 1:04 PM, Allen Wittenauer

> 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.