Hello, On Wed, 29 Mar 2017 21:09:23 +0700 Konstantin Shalygin wrote:
> Thanks for notice. On dovecot mail list reported > https://dovecot.org/pipermail/dovecot/2016-August/105210.html about > success usage CephFS for 30-40k of users, with replica, not EC. > If you read that whole thread, you will have noticed my reply and questions, Sami's question and the total lack of responses by Daniel. W/o further data I'd be reluctant to call that a success, at least in a general sense. A native dovecot-ceph object interface will certainly help performance, but of course still be somewhat limited by the network nature of things and also a total black box compared to maildir on a FS. Lastly, do you feel comfortable to put all your mail eggs into one (software) storage basket? At a million+ users I most certainly don't. Christian > On 03/29/2017 08:19 PM, Wido den Hollander wrote: > > I wouldn't use CephFS for so many small files. Dovecot will do a lot of > > locking, opening en closing those small files which is not very efficient. > > > > http://tracker.ceph.com/issues/12430 > > > > That is in development right now. NO code yet out there, but should be > > there later this year. > -- Christian Balzer Network/Systems Engineer [email protected] Global OnLine Japan/Rakuten Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
