What swift version did you run for your experimental campaign? It’s been a long time, but I seem to remember a similar problem; IIRC this was solved after swift 1.4.2 and more precisely with this bug fix:
https://bugs.launchpad.net/swift/+bug/794618 HTH A. From: openstack-bounces+armando.migliaccio=eu.citrix....@lists.launchpad.net [mailto:openstack-bounces+armando.migliaccio=eu.citrix....@lists.launchpad.net] On Behalf Of Rustam Aliyev Sent: 10 January 2012 16:49 To: [email protected] Subject: Re: [Openstack] Swift on RHEL/CentOS in prod? Hi Armando, Thanks for sharing your experience. It's interesting to hear that you run 5.5. My problem is Swift performance (only Swift, I wasn't interested in Nova). I couldn't get beyond 6-7 writes/sec with 5 node Swift cluster running on CentOS 5.7 (2.6.18-238.19.1.el5) and with RF=3. After troubleshooting for a couple of weeks, we came to conclusion that CentOS 5.x is not supported. See my explanation here: https://lists.launchpad.net/openstack/msg06303.html Right now decision was made to upgrade to CentOS 6.x, but it will take a while. Did you run any performance tests at all? Would be interesting to see some swift-bench figures if available. Many thanks, Rustam. On 10/01/2012 13:59, Armando Migliaccio wrote: We (Citrix) have used CentOS 5.5 (kernel 2.6.18-194.32.1.el5xen), in small pilot environments. Our choice has fallen on CentOS for reasons that I am not going to bore you with. We are going to switch to Ubuntu not because of performance but primarily because of packaging. What are your concerns? Performance, stability or setup complexities? A. From: openstack-bounces+armando.migliaccio=eu.citrix....@lists.launchpad.net<mailto:openstack-bounces+armando.migliaccio=eu.citrix....@lists.launchpad.net> [mailto:openstack-bounces+armando.migliaccio=eu.citrix....@lists.launchpad.net] On Behalf Of Rustam Aliyev Sent: 22 December 2011 11:08 To: [email protected]<mailto:[email protected]> Subject: [Openstack] Swift on RHEL/CentOS in prod? Hi, I was wondering if anyone uses Swift on RHEL/CentOS in production? If yes, which version of RHEL/CentOS you are using? Thanks, Rustam.
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