[squid-users] Very high CPU ussage after migration 2.7 -> 3.5

Sebastian Goicochea sebag at vianetcon.com.ar
Fri Apr 17 17:29:37 UTC 2015


Something new:

Taking away all refresh patterns the CPU usage goes down to around 15%
Patterns look like this, maybe I have to change something:

refresh_pattern -i ^http://c2r\.microsoft\.com/ConsumerC2R/(.*) 43200 
100% 129600 override-expire ignore-reload  ignore-private override-lastmod

refresh_pattern -i 
^http:\/\/.*\.avg\.com\/softw\/.*\/update\/(.*\.bin)   43200 100% 
129600  override-expire ignore-reload  ignore-private override-lastmod


Thanks

El 17/04/15 a las 13:16, Sebastian Goicochea escribió:
> Hello,
>
> I have migrated from Squid 2.7 to Squid 3.5 given the fact that I need 
> some of the new functions that newer versions have.
> The problem I'm having is that squid proccess is using 100% of CPU all 
> the time. Cache.log informed squid was low on file descriptors, but 
> that's already solved.
>
> Now I see a lot of these in cache.log:
>
> 2015/04/17 13:01:07 kid1| Starting new store_id helpers...
> 2015/04/17 13:01:07 kid1| helperOpenServers: Starting 1/30 'jesred' 
> processes
> 2015/04/17 13:01:08 kid1| Starting new store_id helpers...
> 2015/04/17 13:01:08 kid1| helperOpenServers: Starting 1/30 'jesred' 
> processes
>
> It always says 1/30, is it only using one rewriter? Most of the CPU 
> time is idle time, so maybe squid is waiting for something, but I 
> don't know what.
>
> squid -v
> Squid Cache: Version 3.5.3
> Service Name: squid
> configure options:  '--prefix=/usr/local' '--datadir=/usr/local/share' 
> '--bindir=/usr/local/sbin' '--libexecdir=/usr/local/lib/squid' 
> '--localstatedir=/var' '--sysconfdir=/etc/squid3' 
> '--enable-delay-pools' '--enable-ssl' '--enable-ssl-crtd' 
> '--enable-linux-netfilter' '--enable-eui' '--enable-snmp' 
> '--enable-gnuregex' '--enable-ltdl-convenience' 
> '--enable-removal-policies=lru heap' '--enable-http-violations' 
> '--with-openssl' '--with-filedescriptors=24321' '--enable-poll' 
> '--enable-epoll'
>
>
> Any ideas?
>
>
> Thanks,
> Sebastian
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