On 04/24/2013 05:18 AM, Maik Kulbe wrote:
Hi, I'm currently looking into several options on how to use ceph in a small to mid size web cluster. I've ruled out CephFS as it is sadly not stable enaugh. Then I went with RBD and different approaches. OCFS2 on RBD did the job well but had extrem performance issues when two processes where accessing files in the same folder(especially when doing writes).
Any idea if this was more due to OCFS2 or more due to Ceph? I confess I don't know much about how OCFS2 works. Is it doing some kind of latency sensitive operation when two files are being written per directory?
At the moment I'm trying a solution that uses RBD with a normal FS like EXT4 or ZFS and where two server export that block device via NFS(with heartbeat for redundancy and failover) but that involves problems with file system consistency. My question here is, what kind of software stack other users here would suggest for this kind of workload? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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