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Hadoop, mail # user - decommissioning node woes


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Re: decommissioning node woes
Ted Dunning 2011-03-18, 17:34
I like to keep that rather high.  If I am decommissioning nodes, I generally
want them out of the cluster NOW.

That is probably a personality defect on my part.

On Fri, Mar 18, 2011 at 9:59 AM, Michael Segel <[EMAIL PROTECTED]>wrote:

> Once you see those blocks successfully replicated... you can take down the
> next.
>
> Is it clean? No, not really.
> Is it dangerous? No, not really.
> Do I recommend it? No, but its a quick and dirty way of doing things...
>
> Or you can up your dfs.balance.bandwidthPerSecIn the configuration files.
> The default is pretty low.
>
> The downside is that you have to bounce the cloud to get this value
> updated, and it could have a negative impact on performance if set too high.
>