Hi Andrew,

> On Aug 12, 2016, at 4:47 AM, Torry, Andrew <[email protected]> wrote:
> 
> Thanks for your help with this.
>  
> The only process running are aaa, admin, graphite, portal, parking and 
> webservices
>  

Good.
Unfortunately I have seen people trying to host multiple web applications on 
one (PF) server.
That never ends well...


> Interestingly I have enabled QOS in the Config-Captive Portal and are using 
> the default settings but those settings
> you asked me to look for in var/conf/httpd.conf.d/httpd.portal are still not 
> there.
>  

You would have to restart the portal for the change to take effect.


> Looked at the Graphite data for the period in question:-
> ‘Open connections to portal’ is flat-lining at 113
> number of ‘Idle workers’ drops to 0
> apache_scoreboard-open drops from 500 to 400
> apache_scoreboard-sending rises to 113 to match the ‘Open Connections’


That fits with an httpd server maxing out it's number of child processes.
Raising the number of children "may" help.

I write "may" because the real issue is why is the portal maxing out it's 
children processes.
Raising the max number of processes (the MaxClient variable) will not help if 
the problem is that treating each request is taking too long.
You would only end up maxing out the new and increased number of children, 
using more memory while doing so.

>  
> Is there some way I can you screen shots of the Graphite graphs? I am sure it 
> would
> show what was happening a bit clearer.

The graphs are just png files.
You can save them and send them.

Also, take a look at your http://YOUR-PF-IP-HERE:9000 for the full graphite 
metrics.


Best regards, 
--
Louis Munro
[email protected] <mailto:[email protected]>  ::  www.inverse.ca 
<http://www.inverse.ca/> 
+1.514.447.4918 x125  :: +1 (866) 353-6153 x125
Inverse inc. :: Leaders behind SOGo (www.sogo.nu <http://www.sogo.nu/>) and 
PacketFence (www.packetfence.org <http://www.packetfence.org/>)

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