Difference between pages "Package:Varnish" and "Package:Git"

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{{Ebuild
{{Ebuild
|Summary=Varnish is a state-of-the-art, high-performance HTTP accelerator
|Summary=GIT - the stupid content tracker, the revision control system heavily used by the Linux kernel team
|CatPkg=www-servers/varnish
|CatPkg=dev-vcs/git
|Maintainer=
|Maintainer=
|Homepage=http://www.git-scm.com/
}}
}}
__TOC__
Git is a revision control system used extensively under funtoo linux, and kernel.org.  It is a distributed revision control system with a work flow that breaks away from the traditional client ----> server model to the git <--> git model. revision control means that the program operates like a progress save state in a game.  you can save at the start of the game, mid way through, and at the final stage. if you desire to do sub quests you can load up the mid save point and then explore other areas of your code. git is suitable for just about everything regarding text. git is a bad choice for frequently changing binary files.
'''Varnish''' is a webcache & http accelerator.  Varnish will either serve cached content, or retireve content from the server, and cache it.  Varnish will reduce I/O pressure from webservers.
 
==Install==
===Emerge===
 
Install {{Package|www-servers/varnish}}:
<console>###i## emerge www-servers/varnish</console>
 
==Configuration==
 
Configuration is controlled by /etc/varnish/default.vcl & /etc/conf.d/varnishd
 
{{file|name=/etc/varnish/default.vcl|desc=varnish configuration file|body=
vcl 4.0;
backend default {
    .host = "127.0.0.1";
    .port = "8080";
}
}}
 
{{file|name=/etc/conf.d/varnishd|desc=varnish configuration file|body=
VARNISHD="/usr/sbin/varnishd"
VARNISHADM="/usr/bin/varnishadm"
CONFIGFILE="/etc/varnish/default.vcl"
VARNISHD_OPTS="-a 127.0.0.1:80"
VARNISHD_OPTS="${VARNISHD_OPTS} -u varnish -g varnish"
}}
 
Varnish will fetch data from localhost:8080 and serve accelerated proxy data on localhost:80
 
== BootService ==
 
To start varnish immediately:
<console>###i## rc-service varnishd start</console>
 
To start varnish at boot:
<console>###i## rc-update add varnishd default</console>
 
== Verification ==
To verify that your traffic is going through varnish.
<console>$##i## curl -I https://www.varnish-cache.org/</console>
 
== Benchmarking ==
If your system has apache installed apache benchmark can show the power of varnish.  The examples shown are running 500 requests with concurrency of 100 hits.
 
 
ab against a 3 worker cluster mode puma server
<console>###i## ab -n 500 -c 100 http://127.0.0.1:3000/index.html | grep Request</console>
Requests per second:    110.92 [#/sec] (mean)
 
 
ab against the same server served through varnish
<console>###i## ab -n 500 -c 100 http://127.0.0.1/index.html | grep Request</console>
Requests per second:    10268.42 [#/sec] (mean)
 
== SSL support ==
Varnish does not support ssl.  There are packages to get around this limitation:
* {{package|stunnel}}
* {{package|pound}}


== Media ==
== Media ==
{{#widget:YouTube16x9|id=JEF6_XC-2ZU}}
{{#widget:YouTube|playlist=PL782E6284B60DD0B2}}
 
{{EbuildFooter}}
{{EbuildFooter}}

Revision as of 23:26, November 3, 2014

Git

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Git is a revision control system used extensively under funtoo linux, and kernel.org. It is a distributed revision control system with a work flow that breaks away from the traditional client ----> server model to the git <--> git model. revision control means that the program operates like a progress save state in a game. you can save at the start of the game, mid way through, and at the final stage. if you desire to do sub quests you can load up the mid save point and then explore other areas of your code. git is suitable for just about everything regarding text. git is a bad choice for frequently changing binary files.

Media


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