openstack team mailing list archive

[Rustam Aliyev <rustam@xxxxxxx>]

I tried 1.4.3 and 1.4.4, similar slow results.

The bug you mentioned looks slightly different to me - it's about 
problem with posix_fadvise() support on 32bit machines. In my case, it's 
lack of fallocate() on old kernel. All our nodes have 64bit OS.

If confirmed, it could be helpful to mentione somewhere on the official 
page that minimum supported CentOS version is 6.x. I hope that someone 
from OpenStack can confirm it.

Thanks,
Rustam.

On 10/01/2012 17:53, Armando Migliaccio wrote:
> 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.com@xxxxxxxxxxxxxxxxxxx 
> [mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@xxxxxxxxxxxxxxxxxxx] 
> *On Behalf Of *Rustam Aliyev
> *Sent:* 10 January 2012 16:49
> *To:* openstack@xxxxxxxxxxxxxxxxxxx
> *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.com@xxxxxxxxxxxxxxxxxxx 
> <mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@xxxxxxxxxxxxxxxxxxx> 
> [mailto:openstack-bounces+armando.migliaccio=eu.citrix.com@xxxxxxxxxxxxxxxxxxx] 
> *On Behalf Of *Rustam Aliyev
> *Sent:* 22 December 2011 11:08
> *To:* openstack@xxxxxxxxxxxxxxxxxxx <mailto:openstack@xxxxxxxxxxxxxxxxxxx>
> *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.