Hello, On gluster client and server, did you disable atime & co ? Did you check for network bottleneck ? You are now using network twice: -One way to read data through glusterfs, -One way to push data remotely somewhere
I am using rsnapshot on my side, so it's doing hardlink to same files, maybe it goes faster than true full copy. Also problem raise with folder containing a lot of small files in replicated setup. Which gluster version are you using ? I also experience memory leakage from server doing rsync (glusterfs client leak), but we are aware and patched has been pushed for version 3.7.8 Cordialement, Mathieu CHATEAU http://www.lotp.fr 2016-02-14 10:56 GMT+01:00 Nico Schottelius < [email protected]>: > Hello everyone, > > we have a 2 brick setup running on a raid6 with 19T storage. > > We are currently facing the problem that the backup (9.1 TB data in > 48126852 files) is taking more than a week when being backed up by > means of rsync (actually, ccollect[0]). > > During backup the rsync process is continously in D state (expected), > but cpu load is far from 100% and disk is also only about 15-30% busy. > > (this is snapshot from right now) > > I have two questions, the second one more important: > > a) Is there a good way to identify the bottleneck? > b) Is it "safe" to backup data directly from the underlying > filesystem instead of going via the glusterfs mount? > > The reason why I ask about (b) is that we used to backup from those > servers *before* we switched to glusterfs within about a day and thus > I suspect backing up from the xfs filesystem again should do the job. > > Thanks for any hints, > > Nico > > > [0] http://www.nico.schottelius.org/software/ccollect/ > > -- > Werde Teil des modernen Arbeitens im Glarnerland auf www.digitalglarus.ch! > Lese Neuigkeiten auf Twitter: www.twitter.com/DigitalGlarus > Diskutiere mit auf Facebook: www.facebook.com/digitalglarus > _______________________________________________ > Gluster-users mailing list > [email protected] > http://www.gluster.org/mailman/listinfo/gluster-users >
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