openstack team mailing list archive

[Sam Morrison <sorrison@xxxxxxxxx>]

Thanks stuart, interesting reading. I'm not sure why our pound was so slow but nginx is working great so I'm not too fused.

One thing to note when using nginx (for anyone else reading), with older swift clients creating containers will fail as it doesn't send the content-length header.
This is fixed in the latest python-swiftclient.

https://bugs.launchpad.net/python-swiftclient/+bug/951155

Cheers,
Sam



On 09/10/2012, at 12:35 AM, stuart.mclaren@xxxxxx wrote:

> Hi Sam,
> 
> In case its useful for comparison I looked at Swift SSL performance in
> general a while back:
> 
> https://region-a.geo-1.objects.hpcloudsvc.com/v1.0/AUTH_19cbcca3-a4b8-4b90-9332-c9bffd02285f/public_referenced/swift_perf6.pdf
> 
> I didn't see pound hurting performance as much as you did, but our configs
> may have been different.
> 
> -Stuart
> 
> PS
> 
> There's currently some work being done to allow the
> Glance client to disable SSL compression on a per connection basis:
> 
> https://blueprints.launchpad.net/python-glanceclient/+spec/ssl-connect-rework
> 
> If this gets merged it will cover the glanceclient -> glance data path but
> not the glance -> swift part. (With a bit of luck that may get added later.)
> 
> On Mon, 8 Oct 2012, Sam Morrison wrote:
> 
>> OK we changed to use nginx as opposed to pound and got a huge increase in speed.
>> 
>> With taking glance out of it and talking directly to swift an image took 1m38s to download with pound in front.
>> With nginx this took just 5s not sure what is wrong with pound, we haven't changed any settings for pound or nginx.
>> 
>> Sam
>> 
>> 
>> On 08/10/2012, at 2:50 PM, Sam Morrison <sorrison@xxxxxxxxx> wrote:
>> 
>>> Hi,
>>> 
>>> We've recently enabled ssl on our swift-proxy and now glance is incredibly slow. I've read some stuff about disabling zlib compression etc.
>>> 
>>> Has anyone got a good fix for this?
>>> 
>>> We're using Ubuntu 12.04
>>> 
>>> Cheers,
>>> Sam
>>> 
>>> 
>> 
>> 
>> _______________________________________________
>> Mailing list: https://launchpad.net/~openstack
>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~openstack
>> More help   : https://help.launchpad.net/ListHelp
>>