Dear Pranith I would be interested to know what the cluster.ensure-durability off option does, could you explain or point to the documentation? RegardsML
On Thursday, February 12, 2015 8:24 AM, Pranith Kumar Karampuri <pkara...@redhat.com> wrote: On 02/12/2015 04:37 AM, Nico Schottelius wrote: > Hello, > > switching from 3.4.2 to 3.6.2 reduces our average test performance > dramatically. > > Our test setup: directly connected 1 GBit/s hosts setup with: > > rm -rf /home/gluster/.glusterfs/ > rm /home/gluster/* > setfattr -x trusted.glusterfs.volume-id /home/gluster/ > setfattr -x trusted.gfid /home/gluster/ > gluster volume create xfs-plain replica 2 transport tcp >vmhost1-cluster1:/home/gluster vmhost2-cluster1:/home/gluster > gluster volume start xfs-plain > > Afterwards we run our near real world test > > mount -t glusterfs vmhost1-cluster1:/xfs-plain /mnt/gluster/ > while true; do dd if=redmine-from-ceph-20150204 of=/mnt/gluster/testvm >bs=1M; rm /mnt/gluster/testvm; done > > The results are > > 3.4.2: ~71-72 MiB/s [ubuntu 14.04] > 3.6.2: ~59-64 MiB/s [gluster-3.6 ppa] > > We have removed 3.6.2 and re-installed 3.4.2 and can consistently reproduce > these numbers over hours of testing. Could you repeat the test on 3.6.2 with 'volume set <volname> cluster.ensure-durability off' option and post the results. Pranith > > Is there any configuration change that we need to incorporate to run > 3.6.2 faster or is this a known problem? > > Cheers, > > Nico > _______________________________________________ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users
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