Re: [squid-users] can't handle the traffic

What OS are you using?

How many filedescriptors is your Squid supporting? (see cache.log at
Squid startup)

How many unbound TCP ports is available for applications to use? (kernel
TCP/IP parameters)

Is there any messages in the system syslog messages file?

Regards
Henrik

Mike Rambo wrote:
>
> We are a school district that is trying to use squid/squidGuard for
> filtering & caching (although the filtering is the most important in
> that it is required). We have a Dell dual PIII 750 box with 1GB ram and
> UW-SCSI drives running. We had a consultant come in to assist with the
> initial setup. The problem is that we can't get it to handle the load.
> We have 43 schools plus administration and support buildings (probably
> around 5000 users typically) with traffic usually running a sustained
> 4.5M to 5M, occasionally a little more. When we first set up the box it
> pretty promptly fell over. Since then, due to suggestions from our
> consultant and from folks on the k12os list I have since disabled
> caching so we could concentrate on filtering with
>
> acl all src 0.0.0.0/0.0.0.0
> no_cache deny all
>
> and also limited traffic to only the elementary schools and one middle
> school. We are trying to move away from websense both because of cost
> and also the desire to get away from proprietary solutions for as many
> things as we can. The cache box is inline between the last router in the
> chain (a cisco 7206) and the PIX firewall. It handles routing all the
> traffic fine but if I redirect too much to squid we startly loosing
> throughput fast. The elementaries alone consume in excess of 90% cpu
> resources on both processors. Adding one middle school increases that
> right to 100% utilization and adding a high school makes throughput
> start falling and sometimes makes squid fall over completely. The
> biggest indication of a problem I see in the logs are warnings that all
> redirect process are full and a suggestion to increase redirect
> processes. I started the box at redirect_children 30 and have since
> discovered that it apparently is capped at 32.
>
> We've been dealing with this most of this week and are getting to the
> critical point - admin folks are beginning to look wistfully at websense
> again in spite of the cost.
>
> Help!
>
> --
> Mike Rambo
> mrambo@lsd.k12.mi.us
Received on Fri Feb 07 2003 - 17:58:47 MST