Re: [ovirt-users] [Gluster-users] Very poor GlusterFS performance

[replying to lists this time] On 20/06/17 11:23, Krutika Dhananjay wrote: > Couple of things: > > 1. Like Darrell suggested, you should enable stat-prefetch and increase > client and server event threads to 4. > # gluster volume set <VOL> performance.stat-prefetch on > # gluster volume set <VOL> client.event-threads 4 > # gluster volume set <VOL> server.event-threads 4 > > 2. Also glusterfs-3.10.1 and above has a shard performance bug fix - > https://review.gluster.org/#/c/16966/ > > With these two changes, we saw great improvement in performance in our > internal testing. Hi Krutika, Thanks for your input. I have yet to run any benchmarks, but I'll do that once I have a bit more time to work on this. I've tweaked the options as you suggest, but that doesn't seem to have made an appreciable difference. I admit that without benchmarks it's a bit like sticking your finger in the air, though. Do I need to restart my bricks and/or remount the volumes for these to take effect? I'm actually running GlusterFS 3.10.2-1. This is all coming from the CentOS Storage SIG's centos-release-gluster310 repository. Thanks again. Chris -- Chris Boot bootc(a)bootc.net