That radical of a performance slowdown is often a network problem, especially if this is a new hardware setup that hasn't been shaken out yet. Can you crank up a copy of Wireshark and see if there is something funky going on at that level (like lots of timeouts)? ----- Original Message ----- From: "Joel Young" <jdy at cryregarder.com> To: "Nux!" <nux at li.nux.ro> Cc: "gluster-users" <gluster-users at gluster.org> Sent: Friday, October 11, 2013 10:47:11 AM Subject: Re: Tuning for Home Directories Yes. No appreciable improvement. Thanks! Joel On Fri, Oct 11, 2013 at 7:44 AM, Nux! <nux at li.nux.ro> wrote: > On 11.10.2013 15:33, Joel Young wrote: >> >> Re home directory tuning... >> >> Any suggestions? We are still getting extraordinary slowness in using >> gluster for home directories. SVN checkouts to the volume are very >> slow, configure scripts are very slow. >> >> The cluster hardware is overspecced. Each of the four nodes are >> connected via 10GB ethernet, have 24-64 cores, and from 128GB to >> 512GB. >> >> Thanks! >> >> On Wed, Sep 18, 2013 at 10:44 AM, Joel Young <jdy at cryregarder.com> wrote: >>> >>> I've got a HPC type set up with four nodes and a >>> distributed-replicated configuration. Performing developer type >>> actions is disfunctionally slow on the volume. Below is the >>> configuration: >>> >>> Volume Name: home >>> Type: Distributed-Replicate >>> Volume ID: 83fa39a6-6e68-4e1c-8fae-3c3e30b1bd66 >>> Status: Started >>> Number of Bricks: 2 x 2 = 4 >>> Transport-type: tcp >>> Bricks: >>> Brick1: ir0:/lhome/gluster_home >>> Brick2: ir1:/lhome/gluster_home >>> Brick3: ir2:/lhome/gluster_home >>> Brick4: ir3:/raid/gluster_home >>> Options Reconfigured: >>> server.statedump-path: /tmp >>> performance.cache-size: 512MB >>> performance.client-io-threads: on >>> >>> For example, configure runs take tens of minutes instead of fractions >>> of minutes. >>> >>> I've tried setting lookup-unhashed to off or no without a significant >>> performance change. >>> >>> Does anyone have any performance tunings or suggestions for making >>> gluster based home directories usable for developers? >>> >>> Also, the documentation is unclear as to if lookup-unhashed should be >>> set to yes or on, vs no or off. Some things indicate one way, some >>> the other. boolean options should no allow multiple values to be set. > > > Have you tried mounting the volume over NFS and see how that goes? > > Lucian > > -- > Sent from the Delta quadrant using Borg technology! > > Nux! > www.nux.ro _______________________________________________ Gluster-users mailing list Gluster-users at gluster.org http://supercolony.gluster.org/mailman/listinfo/gluster-users -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20131011/ade7bf65/attachment.html>
