[chef] Re: webui slow on login

["John E. Vincent (lusis)" < >]

On Fri, Feb 24, 2012 at 4:48 PM, KC Braunschweig
<
 >
 wrote:
> My chef server is mostly performing fine, but there seems to be a
> consistent 20-30 second hang when loading the webui initially. It is
> better after you've logged in and loaded the first page. Has anyone
> seen this that can point me in the right direction? My users aren't
> thrilled with the experience.

I've not used unicorn yet since I've been stuck at Java shops but back
in the Passenger days, there would always be that same delay depending
on how frequently the application was accessed. Passenger had an
option added in 3 I think that allowed you to have a base pool size
that would be kept around regardless. I thought unicorn spun up
instances on demand? Maybe that's the thing you're waiting for?

>
> This is chef server 0.10.4 served via unicorn (server and webui) with
> an nginx proxy. All on one VM.  Here are a couple examples where you
> can see the action_time is over 20 seconds. Seems to always be on the
> same action/controller. As noted, most other commands have an
> action_time consistently under 1 second.
>
> unicorn-webui.stdout.log.9.gz: ~ Started request handling: Wed Feb 15
> 15:30:29 -0800 2012
> unicorn-webui.stdout.log.9.gz: ~ Params: {"action"=>"index",
> "controller"=>"nodes"}
> unicorn-webui.stdout.log.9.gz: ~ {:dispatch_time=>23.639048,
> :before_filters_time=>0.11601, :action_time=>23.638479,
> :after_filters_time=>1.3e-05}
>

How many nodes do you have registered?

> Thanks,
>
> KC