Dwayne Hottinger wrote:
Quoting Brian Gregory <brian.gregory05@xxxxxxxxxxxxx>:We have a Linux box running Suse 10.0 set up as a router and web proxy with filtering sharing our DSL connection between 7 Windows XP computers. It's running squid and squidGuard with a very large blacklist of forbidden URLs and phrases. Because we basically have no money the Suse box is an old 400MHz Pentium II PC with only 256MB of RAM and this isn't likely to change in the near future, except that I might be able to get some more RAM if necessary. Squid is set up to run 5 squidGuard processes. When we boot Suse it takes 15-20 minutes with lots of disk thrashing for the 5 squidGuards to read in the blacklists and build their tables. During this time the web proxy is non functional so we usually leave the Suse box running 24/7 to avoid having to wait for it. Much of the time it works fine but every now and then for no obvious reason, squid decides it needs to start more squidGuard processes which effectively cuts off all web access. I'm not sure exactly what happens, maybe sometimes it just kills the existing squidGuards and starts new ones but it sometimes seems to end running 10 squidGuards and thrashing the disk hard for ages leaving the users with no web access. When it's all running properly free -m seems to indicated that there is enough memory: total used free shared buffers cached Mem: 250 246 3 0 51 126 -/+ buffers/cache: 68 181 Swap: 400 2 397 Does anyone know what's going on and how to stop it happening? -- Brian Gregory. brian.gregory05@xxxxxxxxxxxxx Computer Room Volunteer. Therapy Centre. Prospect Park Hospital.How big are your access.log files? There is a 2gb limit on Squid. I would definately think about adding more memory to the box though. You should be able to pick up PC 100 memory fairly cheap. -- Dwayne Hottinger Network Administrator Harrisonburg City Public Schools
Part of the problem may be log file rotation which appears to be set to restart squid at the moment.
However this does not explain why I sometimes find that it is running 10 squidGuard processes when my squid.conf specifies 5.
-- Brian Gregory. brian.gregory05@xxxxxxxxxxxxx Computer Room Volunteer. Therapy Centre. Prospect Park Hospital.
