Another update, I thought I'd try it without direct-io-mode=write-only, no joy. Next I'm going to try to simplify my setup (thinking 6 hashes mirrored might be too much?)..... As always, if you shade any more light or offer up any more ideas, please let me know. Thanks, Josh. > -----Original Message----- > From: gluster-users-bounces at gluster.org > [mailto:gluster-users-bounces at gluster.org] On Behalf Of Hiren Joshi > Sent: 05 October 2009 11:01 > To: Pavan Vilas Sondur > Cc: gluster-users at gluster.org > Subject: Re: Rsync > > Just a quick update: The rsync is *still* not finished. > > > -----Original Message----- > > From: gluster-users-bounces at gluster.org > > [mailto:gluster-users-bounces at gluster.org] On Behalf Of Hiren Joshi > > Sent: 01 October 2009 16:50 > > To: Pavan Vilas Sondur > > Cc: gluster-users at gluster.org > > Subject: Re: Rsync > > > > Thanks! > > > > I'm keeping a close eye on the "is glusterfs DHT really > distributed?" > > thread =) > > > > I tried nodelay on and unhashd no. I tarred about 400G to > the share in > > about 17 hours (~6MB/s?) and am running an rsync now. Will post the > > results when it's done. > > > > > -----Original Message----- > > > From: Pavan Vilas Sondur [mailto:pavan at gluster.com] > > > Sent: 01 October 2009 09:00 > > > To: Hiren Joshi > > > Cc: gluster-users at gluster.org > > > Subject: Re: Rsync > > > > > > Hi, > > > We're looking into the problem on similar setups and > workng on it. > > > Meanwhile can you let us know if performance increases if you > > > use this option: > > > > > > option transport.socket.nodelay on' in each of your > > > protocol/client and protocol/server volumes. > > > > > > Pavan > > > > > > On 28/09/09 11:25 +0100, Hiren Joshi wrote: > > > > Another update: > > > > It took 1240 minutes (over 20 hours) to complete on the > simplified > > > > system (without mirroring). What else can I do to debug? > > > > > > > > > -----Original Message----- > > > > > From: gluster-users-bounces at gluster.org > > > > > [mailto:gluster-users-bounces at gluster.org] On Behalf Of > > > Hiren Joshi > > > > > Sent: 24 September 2009 13:05 > > > > > To: Pavan Vilas Sondur > > > > > Cc: gluster-users at gluster.org > > > > > Subject: Re: Rsync > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > From: Pavan Vilas Sondur [mailto:pavan at gluster.com] > > > > > > Sent: 24 September 2009 12:42 > > > > > > To: Hiren Joshi > > > > > > Cc: gluster-users at gluster.org > > > > > > Subject: Re: Rsync > > > > > > > > > > > > Can you let us know the following: > > > > > > > > > > > > * What is the exact directory structure? > > > > > /abc/def/ghi/jkl/[1-4] > > > > > now abc, def, ghi and jkl are one of a thousand dirs. > > > > > > > > > > > * How many files are there in each individual > directory and > > > > > > of what size? > > > > > Each of the [1-4] dirs has about 100 files in, all under 1MB. > > > > > > > > > > > * It looks like each server process has 6 export > > > > > > directories. Can you run one server process each > for a single > > > > > > export directory and check if the rsync speeds up? > > > > > I had no idea you could do that. How? Would I need to > > > create 6 config > > > > > files and start gluster: > > > > > > > > > > /usr/sbin/glusterfsd -f /etc/glusterfs/export1.vol or similar? > > > > > > > > > > I'll give this a go.... > > > > > > > > > > > * Also, do you have any benchmarks with a similar setup on > > > > > say, NFS? > > > > > NFS will create the dir tree in about 20 minutes then start > > > > > copying the > > > > > files over, it takes about 2-3 hours. > > > > > > > > > > > > > > > > > Pavan > > > > > > > > > > > > On 24/09/09 12:13 +0100, Hiren Joshi wrote: > > > > > > > It's been running for over 24 hours now. > > > > > > > Network traffic is nominal, top shows about 200-400% cpu > > > > > (7 cores so > > > > > > > it's not too bad). > > > > > > > About 14G of memory used (the rest is being used as > > > disk cache). > > > > > > > > > > > > > > Thoughts? > > > > > > > > > > > > > > > > > > > > > > > > > > > > <snip> > > > > > > > > > > > > > > > > > > > > > > An update, after running the rsync for a day, > > > I killed it > > > > > > > > > > and remounted > > > > > > > > > > > all the disks (the underlying filesystem, not the > > > > > gluster) > > > > > > > > > > with noatime, > > > > > > > > > > > the rsync completed in about 600 minutes. I'm now > > > > > going to > > > > > > > > > > try one level > > > > > > > > > > > up (about 1,000,000,000 dirs). > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > > From: Pavan Vilas Sondur > > [mailto:pavan at gluster.com] > > > > > > > > > > > > Sent: 23 September 2009 07:55 > > > > > > > > > > > > To: Hiren Joshi > > > > > > > > > > > > Cc: gluster-users at gluster.org > > > > > > > > > > > > Subject: Re: Rsync > > > > > > > > > > > > > > > > > > > > > > > > Hi Hiren, > > > > > > > > > > > > What glusterfs version are you using? Can you > > > > > send us the > > > > > > > > > > > > volfiles and the log files. > > > > > > > > > > > > > > > > > > > > > > > > Pavan > > > > > > > > > > > > > > > > > > > > > > > > On 22/09/09 16:01 +0100, Hiren Joshi wrote: > > > > > > > > > > > > > I forgot to mention, the mount is > mounted with > > > > > > > > > > direct-io, would this > > > > > > > > > > > > > make a difference? > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > > > > From: gluster-users-bounces at gluster.org > > > > > > > > > > > > > > > [mailto:gluster-users-bounces at gluster.org] On > > > > > > Behalf Of > > > > > > > > > > > > Hiren Joshi > > > > > > > > > > > > > > Sent: 22 September 2009 11:40 > > > > > > > > > > > > > > To: gluster-users at gluster.org > > > > > > > > > > > > > > Subject: Rsync > > > > > > > > > > > > > > > > > > > > > > > > > > > > Hello all, > > > > > > > > > > > > > > > > > > > > > > > > > > > > I'm getting what I think is bizarre > > > > > > behaviour.... I have > > > > > > > > > > > > about 400G to > > > > > > > > > > > > > > rsync (rsync -av) onto a gluster share, > > > the data is > > > > > > > > > > in a directory > > > > > > > > > > > > > > structure which has about 1000 directories > > > > > > per parent and > > > > > > > > > > > > about 1000 > > > > > > > > > > > > > > directories in each of them. > > > > > > > > > > > > > > > > > > > > > > > > > > > > When I try to rsync an end leaf > > directory (this > > > > > > > > has about 4 > > > > > > > > > > > > > > dirs and 100 > > > > > > > > > > > > > > files in each) the operation takes about 10 > > > > > > > > seconds. When I > > > > > > > > > > > > > > go one level > > > > > > > > > > > > > > above (1000 dirs with about 4 dirs in each > > > > > > with about 100 > > > > > > > > > > > > > > files in each) > > > > > > > > > > > > > > the operation takes about 10 minutes. > > > > > > > > > > > > > > > > > > > > > > > > > > > > Now, if I then go one level above that > > > (that's 1000 > > > > > > > > > dirs with > > > > > > > > > > > > > > 1000 dirs > > > > > > > > > > > > > > in each with about 4 dirs in each > with about > > > > > > 100 files in > > > > > > > > > > > > each) the > > > > > > > > > > > > > > operation takes days! Top shows glusterfsd > > > > > > takes 300-600% > > > > > > > > > > > > cpu usage > > > > > > > > > > > > > > (2X4core), I have about 48G of memory > > > > > (usage is 0% as > > > > > > > > > > expected). > > > > > > > > > > > > > > > > > > > > > > > > > > > > Has anyone seen anything like this? > How can I > > > > > > speed it up? > > > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > > > > > > > > > > > > > Josh. > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > > > > > > Gluster-users mailing list > > > > > > > > > > > > > Gluster-users at gluster.org > > > > > > > > > > > > > > > > > > > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > > Gluster-users mailing list > > > > > > > > > Gluster-users at gluster.org > > > > > > > > > > > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > Gluster-users mailing list > > > > > Gluster-users at gluster.org > > > > > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > > > > > > > > > > _______________________________________________ > > Gluster-users mailing list > > Gluster-users at gluster.org > > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users >
