----- Original Message ----- > From: "???? ???????" <ymarinov at neterra.net> > To: "Nux!" <nux at li.nux.ro> > Cc: gluster-users at gluster.org > Sent: Thursday, May 23, 2013 4:41:23 AM > Subject: Re: GlusterFS performance > > Thanks for your reply. > > No matter how many nodes (currently the volume is only with its own node) the > speed is really slow. For testing purposes, i made a volume with only one > node, without any replication - however the speed is still ~500kb/s. The > cloud servers are limited to 30Gbit/s but still the traffic when writing to > the node is ~500kb/s I agree that there is a performance problem on FUSE mounts on RHEL 5 clients. A while back I opened https://bugzilla.redhat.com/show_bug.cgi?id=896314. Check out the DD numbers where I mount the same volume on a RHEL 5 and a RHEL 6 client: https://bugzilla.redhat.com/show_bug.cgi?id=896314#c5 Just wildly shooting from the hip I would guess that the problem is in the version of FUSE packaged with RHEL 5, but I don't have any evidence to confirm or deny that. I have tested with 5.6, 5.8, and 5.9 and I saw the problem across the board. Is there any way you could switch your clients to RHEL 6 until this gets resolved? If not maybe try mounting NFS? -b > i'm using 3.3.1 glusterfsd with kernel 2.6.18-348.el5xen and i need to know > if the the problem is within the kernel. > > --- > Find out about our new Cloud service - Cloudware.bg > Access anywhere. Manage it yourself. Pay as you go. > > Yavor Marinov > System Administrator > > Neterra Ltd. > Telephone: +359 2 975 16 16 > Fax: +359 2 975 34 36 > Mobile: +359 888 610 048 > www.neterra.net > > > On 05/23/2013 11:36 AM, Nux! wrote: > > > On 23.05.2013 08:38, ???? ??????? wrote: > > > Hello, > > I'm trying to setup GlusterFS with 2 nodes, but it seems that speed > is really low. The 3 nodes are based on a cloud service, i'm using 2 > for bricks, and 1 for a client, where the volume is mounted. The > operating system is CentOS 5.9 x64, and actual problem is that the > write speed when a copy of file is performed on the client side > mounted dir, is not going over 500kbytes/sec. Anyone have any > suggestion where to dig further in order to locate the problem? > > Hello Yavor, > > What kind of setup? Replicated? > With 2 node replicated setups the speed from a 3rd mount point would > essentially be 2x slower than with only 1 node, so the question is what kind > of speed do you get between your nodes? > Is any of them limited to 10 Mbps by any chance? > > > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://supercolony.gluster.org/mailman/listinfo/gluster-users
