[squid-users] Fwd: Squid configuration advise

Sat Dec 19 19:56:21 UTC 2015

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AIX great system in good hands. ;)

All the matter in the gasket between the seats and the console. :D

20.12.15 1:53, Jean Christophe Ventura пишет:
> Well
>
> If it was my project : archlinux using yaourt and each needed package
> compiled in a VM
>
> I work at a company as sysadmin and proxy aren't in my side (network
> things...)
> So if i can configure a repository or sync a repository with the
response :
> go head it will be here for years.., if not i have to deal with distrib
> package :P
>
> Even in a VM i prefered a debian server than a RHEL
> By the way the good thing it's not a AIX proxy ;)
>
> I do not understand the love of archaeological fossils. It repositories
> such junk lying around? :-D
>
> 20.12.15 0:56, Jean Christophe Ventura пишет:
> > Hi,
>
> > I'm currently working to migrate RHEL5 2.7 Squid to RHEL7 3.3.
>
> > I have migrated the config files to be 3.3 compliant (CIDR, remove of
> > deprecated function,change cache from UFS to AUFS) without any change
> > (cache mem, policy, smp)
>
> > The new platform is a 4 node R610 (24 proc hyperthreading activate)
> > with 48GB of RAM, only 143GB disk in RAID for OS and cache. Each node
> > is connected to the network using 2x1Gbit bonding 2/3 level (some
> > network port are available on the server).
>
> > bandwidth allocated for Internet users 400Mbit
>
> > The difference between the old plateform and the new one doesn't seem
> > to be very fantastic :P
> > I have read the mailing list history alot.
>
> > Squid release:
> > So i know 3.3 isn't anymore maintain but this infrastructure will be
> > not maintain by myself and i don't think that people behind will do
> > the update them self
> > If a official repository exist, maybe this question will be reopen
> > (from what i have read it's more some of you build packages from
> > source and give them to people)
>
> > Squid auth:
> > It's transparent/basic auth only filtering some ip with acl.
>
> > Squid bandwidth:
> > Currently a squid node treat something like 30/50Mbit (information
> > recovered using iftop)
> > From previous viewed mail i think it's normal for a non-smp
configuration
>
> > Squid measure:
> > [root at xxxx ~]# squidclient mgr:5min | grep 'client_http.requests'
> > client_http.requests = 233.206612/sec
> > other info
> > Cache information for squid:
> >         Hits as % of all requests:      5min: 6.8%, 60min: 7.1%
> >         Hits as % of bytes sent:        5min: 4.7%, 60min: 4.4%
> >         Memory hits as % of hit requests:       5min: 21.4%, 60min:
21.5%
> >         Disk hits as % of hit requests: 5min: 34.7%, 60min: 30.8%
> >         Storage Swap size:      9573016 KB
> >         Storage Swap capacity:  91.3% used,  8.7% free
> >         Storage Mem size:       519352 KB
> >         Storage Mem capacity:   99.1% used,  0.9% free
> >         Mean Object Size:       47.71 KB
>
> > Now question and advise :
>
> > This metrics seem too low for me. anyone of you agree ?
>
> > 4 node x 50Mbit node= 200Mbit
> > To treat the maxbandwidth (400Mbit) + the lost of one host i need to
> > configure 4 thread by node.
> > Is there any reason or brillant idea for more (i will have some core
> > still available) ? calculation too empirical ?
>
> > This url http://wiki.squid-cache.org/ConfigExamples/SmpCarpCluster
> > seem to be a good start :P
> > Using this method i can interconnect each proxy to share their cache
> > (maybe using dedicated network port). Usefull or not ? may this
> > increase the hit ratio ? if this idea is'nt stupid interconnet using
> > the frontend only or directy to each ?
>
> > For now i have :
> > - 100GB of disk available for cache
> > - 40GB   of RAM (let 8 for OS + squid disk cache related ram usage)
>
> > 1 front with the RAM cache and 4 back with disk cache.
> > AUFS or ROCK cache? mix of them ? 50% each ? maybe another rules ?
> > (i think it's will be linked to the cache content but any advise or
> > method is welcome)
>
> > I can get more speed and/or space for disk cache using SAN, do you
> > know if the data is sequential or random ?
>
> > Any advise/rules to increase the hit ratio ? :)
> > Any general advise/rules ?
>
> > Thanks for your help
>
>
> > Jean Christophe VENTURA
> > _______________________________________________
> > squid-users mailing list
> > squid-users at lists.squid-cache.org
> > http://lists.squid-cache.org/listinfo/squid-users
>
>

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