it-news (Josef Lahmer)
2010-Jun-29 09:06 UTC
[Gluster-users] slow directory listings, usage timeouts on glusterfs 3.0.4
Hi all!, currently i'm "filling" glusterfs storage with data, while one client is using it (serving a website too)... client1: rsync -av --delete /var/www/ /gFS/d/client1/ (6,7 GB with 60000 files) client2: rsync -av --delete /home/users/ root at client4:/gFS/d/ client2/ (7,3 gb with 200000 files) apache serveing a website from /gFS/d/client3/ directory after 5 minutes rsync getting sync slowdowns and apache serving errors/timeouts.... then i kill rsync processes, waiting 1 minute apache is working correct.... what i don't understand: every client is working in a separate directories, but ist still affectet (slowdowns) => could that be file locks?? ... is that a bug or a performance issue? maybe special config for "many small files"? xfs as server storage filesystem? I've nothing found in glusterfs server & client logs, I've nothing found in system logs (var/log/messages) any ideas? ... regards from austria, josy details: config: glusterfs-volgen -c /etc/glusterfs/ --name glusterFSr1 --raid 1 gluster01:/glusterFS/r1 gluster02:/glusterFS/r1 glusterfs 3.0.4 built on Apr 14 2010 08:20:28 servers: 2xgluster server centos 5.5 (gluster01, gluster02), 2gb ram store: 200 gb: /dev/xvdb on /glusterFS type xfs (rw,noatime) 2.6.18-194.3.1.el5xen clients: 3*centos 5.5(client2-4), 1* debian (client1), 4gb ram centos 5.5 (Linux host 2.6.18-194.3.1.el5xen #1 SMP x86_64 x86_64 x86_64 GNU/Linux) debian 5.0.4 2.6.18.xs4.0.1.900.5799 #2 SMP all systems and servers are in "virtual" environment (citrix xenserver) gugler* News der Woche: Erfolgreiches ?ko-Audit! Das g* Umweltmanagementsystem erf?llt die h?chsten europ?ischen EMAS-Standards. Lesen Sie mehr dar?ber im neuen gugler* Nachhaltigkeitsbericht: http://www.gugler.at/unternehmen/publikationen/g-nachhaltigkeitsbericht.html