Re: [ceph-users] Radosgw and mds hardware configuration

2015-04-26 Thread Yan, Zheng
On Sat, Apr 25, 2015 at 11:21 PM, François Lafont wrote: > Hi, > > Gregory Farnum wrote: > >> 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

Re: [ceph-users] Radosgw and mds hardware configuration

2015-04-25 Thread François Lafont
Hi, Gregory Farnum wrote: > 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. Ok, thanks for the ans

Re: [ceph-users] Radosgw and mds hardware configuration

2015-04-24 Thread Gregory Farnum
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 wrot

[ceph-users] Radosgw and mds hardware configuration

2015-04-22 Thread Francois Lafont
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