-u tag in configuration and multi instance varnish communication
dridi.boukelmoune at zenika.com
Tue Mar 12 22:39:12 CET 2013
>From the varnishd(1) man:
Specifies the name of an unprivileged user to which the child process
should switch before it starts accepting connections. This is a
shortcut for specifying the user run- time parameter.
If specifying both a user and a group, the user should be specified first.
The varnish user and group were probably created during the install if
you used native packages.
This doesn't answer what you ask, but it might help:
On Tue, Mar 12, 2013 at 7:58 PM, Souvik Bhattacharya
<souvikbhattacharyas at gmail.com> wrote:
> During my Varnish set up I have few questions on the same.
> a) During set up I found a tag '-u' inside DAEMON_OPTS set up. So, could
> you tell me what -u actually define in Varnish.
> DAEMON_OPTS="-a 188.8.131.52:80,[2001:db8::2]:80 \
> -T localhost:6082 \
> -f /etc/varnish/default.vcl \
> -u varnish -g varnish \
> -s file,/var/lib/varnish/varnish_storage.bin,4G"
> b) According to my system need I have two server (Load Balancing) running
> two different instance of Varnish.
> Now how to configure the same in a way that they will talk with each other
> regarding the cache.
> For Example :
> Server A served a request and stored the data in cache of Varnish of Server
> A not Server B has the same request. Now Server B will check is the data
> available in it's cache if not then is the data available in Server A 's
> Or another one approach can be taken when Server A stored a data in it's
> cache it will also update the cache of Server B.
> Really looking for your help on the same.
> Thanks & Regards,
> Souvik Bhattacharya
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