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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>What swift version did you run for your experimental campaign? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="https://bugs.launchpad.net/swift/+bug/794618">https://bugs.launchpad.net/swift/+bug/794618</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>HTH<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> openstack-bounces+armando.migliaccio=eu.citrix.com@lists.launchpad.net [mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@lists.launchpad.net] <b>On Behalf Of </b>Rustam Aliyev<br><b>Sent:</b> 10 January 2012 16:49<br><b>To:</b> openstack@lists.launchpad.net<br><b>Subject:</b> Re: [Openstack] Swift on RHEL/CentOS in prod?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica","sans-serif"'>Hi Armando,<br><br><br>Thanks for sharing your experience. It's interesting to hear that you run 5.5.<br><br>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: <a href="https://lists.launchpad.net/openstack/msg06303.html">https://lists.launchpad.net/openstack/msg06303.html</a><br><br>Right now decision was made to upgrade to CentOS 6.x, but it will take a while.<br><br>Did you run any performance tests at all? Would be interesting to see some swift-bench figures if available.<br><br><br>Many thanks,<br>Rustam.<br><br><br></span><br>On 10/01/2012 13:59, Armando Migliaccio wrote: <o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>What are your concerns? Performance, stability or setup complexities?</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> <a href="mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@lists.launchpad.net">openstack-bounces+armando.migliaccio=eu.citrix.com@lists.launchpad.net</a> [<a href="mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@lists.launchpad.net">mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@lists.launchpad.net</a>] <b>On Behalf Of </b>Rustam Aliyev<br><b>Sent:</b> 22 December 2011 11:08<br><b>To:</b> <a href="mailto:openstack@lists.launchpad.net">openstack@lists.launchpad.net</a><br><b>Subject:</b> [Openstack] Swift on RHEL/CentOS in prod?</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Helvetica","sans-serif"'>Hi,<br><br>I was wondering if anyone uses Swift on RHEL/CentOS in production?<br><br>If yes, which version of RHEL/CentOS you are using?</span><o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>Thanks, <br>Rustam.<o:p></o:p></p></div></div></div></div></body></html>