Re: Radosgw and mds hardware configuration

[Gregory Farnum <greg@xxxxxxxxxxx>]

The MDS will run in 1GB, but the more RAM it has the more of the metadata you can cache in memory. The faster single-threaded performance your CPU has, the more metadata IOPS you'll get. We haven't done much work characterizing it, though.
-Greg

On Wed, Apr 22, 2015 at 5:39 PM Francois Lafont <flafdivers@xxxxxxx> wrote:

Hi Cephers, :)

I would like to know if there are some rules to estimate (approximatively)
the need of CPU and RAM for:

1. a radosgw server (for instance with Hammer and civetweb).
2. a mds server

If I am not mistaken, for these 2 types of server, there is no need
concerning the storage.

For a mds server, I wonder if this page is udpated:

    http://ceph.com/docs/master/start/hardware-recommendations/#minimum-hardware-recommendations

1GB per mds daemon seems to me very few.

Thanks for your help.

--
François Lafont
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