[squid-users] Fwd: Squid configuration advise

Sat Dec 19 20:32:11 UTC 2015

Ok thanks for your info

2015-12-19 21:02 GMT+01:00 Yuri Voinov <yvoinov at gmail.com>:

>
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> My best result I can achieve this day with 3.5.12 is:
>
> http://i.imgur.com/Lm6MkwH.png
>
> Maximum hit level is 50-55%. With VERY complex configuration.
>
> With old good 3.4.14 I achieved cache hit over 86%, but this is in the
> past.
>
> 20.12.15 1:59, Jean Christophe Ventura пишет:
> > Reading the mailing list i know that sslbump is the question to get a
> more
> > usefull hit.
> >
> > But this proxy infrastructure isn't acting as my company proxy but isp
> > proxy for the company client and i cann't go to this way without some guy
> > like lawers/security guys :)
> >
> > I know there is no magic button to get the full internet at home ;) but
> at
> > least my job with this project constraint is to get the best i can :)
> >
> > 2015-12-19 20:51 GMT+01:00 Yuri Voinov <yvoinov at gmail.com>
> <yvoinov at gmail.com>:
> >
> >>
> > I'm sorry that upset. :)
> >
> > 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
> >
> >>
> >> _______________________________________________
> >> squid-users mailing list
> >> squid-users at lists.squid-cache.org
> >> http://lists.squid-cache.org/listinfo/squid-users
> >>
> >
>
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