CPU utilization (Stefano PASCALI)

[Stefano PASCALI]

First of all, many thanks Ruy for your time!

On Aug 1, 2014, at 12:51 PM, Rui Ribeiro wrote:

> Hello Stefano,
> 
> 2.12 is quite old, and is has several bugs. Why not update it to at least 2.2.5?
> 
ok I'll do upgrade asap, but I'm not sure this will be feasible in near future. I'll try to fix it on this installation first.
> As for problems, there is a know bug when using mschap in 2.1.12, that often freeradius stops answering requests after a reload when rotating logs. You have to edit /etc/logrotate.d/freeradius and change the reload for a restart if that is your case.
actually the problem seems to be not related to the log rotate operation, however I changed it as you suggest me. 
> 
> Another probable source of cpu/ I/O load is radwtmp and similar files, as they grow and are not rotated per the default configuration. I dont use them, I rely on the (My)SQL data.
I'm going to change this configuration too.
> 
> Hope these tips help you in some way. You are welcome to ask me any questions.
> 
> Regards,
> Rui
> 

Regards,
Stefano

> 
> Date: Fri, 1 Aug 2014 10:57:48 +0200
> From: Stefano PASCALI <stefano.pascali at unisalento.it>
> To: FreeRadius users mailing list
>         <freeradius-users at lists.freeradius.org>
> Subject: CPU utilization
> Message-ID: <488B69B7-9992-4940-B9D0-04A1DD6CD698 at unisalento.it>
> Content-Type: text/plain; charset=us-ascii
> 
> Hi FR folks,
> 
> I got a strange cpu load on my FR installation. Sometimes CPU utilization rises to 100% and FR service doesn't respond anymore to the clients. I got two virtual servers enabled: default and inner-tunnel and their configurations are the provided ones by the FR installation.
> Configuration details in the following:
> 
> OS: Ubuntu server 14.04
> Deamon: freeradius 2.1.12+dfsg-1.2ubuntu8 amd64
> 2 vcpu
> RAM 4GB
> 
> Users on freeradius MySQL (5.x) DB installed on a different virtual host on the same hosting server.
> 
> Hosting server (Ubuntu server 14.04 + Xen 4.3) HP PL G5
> CPU: 2 x Intel(R) Xeon(R) CPU E7330 @ 2.40GHz - cpu cores 4; [total cores 2x4 = 8]
> RAM 16GiB
> 
> Do you have any ideas to solve my issue?
> Hope someone help me.
> 
> Regards
> Stefano
> 
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