Re: [squid-users] cache/mem ratio ok but swap grows

From: Marc Elsen <marc.elsen@dont-contact.us>
Date: Wed, 16 Apr 2003 09:59:28 +0200

Stuart Clark wrote:
>
> YOU WROTE---------------------------------------------
>
> You say total cache storage is 28gig, yet from
> your squid.conf it seems that you have a 'cache3' configured
> which is 73gig !
> In that case your machine's RAM will be much too low (512 Mb).
>
> Check the FAQ on mem. usage versus configured cache dir(s).
>
> M.
> ----------------------------------------------------------
>
> Thanks for your reply
>
> I know I've got 74 gig but I'm running cache_swap_high at 40%
>
> This means that my caches never grows over 28 gig.
>
> Do you still think that this should be changed?

 Yes, because I think that squid reserves data structures which
 are sized according to the size of the cache.
 So this workaround will not help you, shrink cache spec in squid.conf
 or order more physical ram ....

 M.

>
> MY MRTG
>
> http://mrtg.spacelink.com.au/cache_server.html
>
> Username: squidusers
> Password: cache
>
> Kind Regards
>
> Stuart Clark
>
> -----Original Message-----
> From: Marc Elsen [mailto:marc.elsen@imec.be]
> Sent: Tuesday, 15 April 2003 9:31 PM
> To: Stuart Clark
> Cc: squid-users@squid-cache.org
> Subject: Re: [squid-users] cache/mem ratio ok but swap grows
>
> Stuart Clark wrote:
> >
> > My swap seems to just grow and grow until I restart squid.
> >
> > Why?
> >
> > I want to grow my cache store another 40-50 gig.
> >
> > Is this safe?
> >
> > Ram is always maxed out
> >
> > I know about the mem/cache size ratios and I'm well within bounds
> >
> > All other stats look fine
> >
> > Here are my mrtg stats
> >
> > You can see where I've restarted squid and the swap and ram clears.
> >
> > http://mrtg.spacelink.com.au/cache_server.html
> >
> > Username: squidusers
> > Password: cache
> >
> > Machine Specifications
> >
> > Celeron 1.2 GHZ
> > 512 RAM
> > 1 x scsi 4 GIG (ext3)
> > 1 x ATA100 70 GIG (ext3)
> > Redhat 7.3
> > squid-2.4.STABLE6-6.7.3.rpm
> > bind-9.2.1-1.7x.2
> > vmlinuz-2.4.18-26.7.x
> > Swap space 1 gig
> > Total size of cache storage 28gig
> >
>
> > My squid box is running about 55 gig of traffic per month
> >
> > The CPU runs at 2% or less
> >
> > [root@proxy root]# cat /etc/squid/squid.conf | grep -v ^# | grep -v ^$
> >
> > http_port 3128
> > hierarchy_stoplist cgi-bin ?
> > acl QUERY urlpath_regex cgi-bin ?
> > no_cache deny QUERY
> > cache_mem 32 MB
> > cache_swap_low 35
> > cache_swap_high 40
> > maximum_object_size 10000 KB
> > maximum_object_size_in_memory 8 KB
> > cache_dir ufs /cache 4800 16 256
> > cache_dir ufs /cache3 73000 16 256
> > cache_access_log /var/log/squid/access.log
> > acl PURGE method PURGE
> > acl snmppublic snmp_community public
> > acl taz src XXX.XXX.XXX.XXX/255.255.255.255
> > acl spacelink src XXX.XXX.XXX.XXX/255.255.255.0
> > acl all src 0.0.0.0/0.0.0.0
> > acl manager proto cache_object
> > acl localhost src 127.0.0.1/255.255.255.255
> > acl SSL_ports port 443 563
> > acl Safe_ports port 80 # http
> > acl Safe_ports port 21 # ftp
> > acl Safe_ports port 443 563 # https, snews
> > acl Safe_ports port 70 # gopher
> > acl Safe_ports port 210 # wais
> > acl Safe_ports port 1025-65535 # unregistered ports
> > acl Safe_ports port 280 # http-mgmt
> > acl Safe_ports port 488 # gss-http
> > acl Safe_ports port 591 # filemaker
> > acl Safe_ports port 777 # multiling http
> > acl CONNECT method CONNECT
> > http_access allow spacelink
> > http_access allow PURGE localhost
> > http_access allow manager localhost
> > http_access deny manager
> > http_access deny !Safe_ports
> > http_access deny CONNECT !SSL_ports
> > http_access allow localhost
> > http_access deny PURGE
> > http_access deny all
> > icp_access allow all
> > httpd_accel_host virtual
> > httpd_accel_port 80
> > httpd_accel_with_proxy on
> > httpd_accel_uses_host_header on
> > snmp_port 3401
> > snmp_access allow snmppublic taz
> > snmp_incoming_address 0.0.0.0
> > snmp_outgoing_address 255.255.255.255
>
> --
>
> 'Love is truth without any future.
> (M.E. 1997)

-- 
 'Love is truth without any future.
 (M.E. 1997)
Received on Wed Apr 16 2003 - 02:00:04 MDT

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