From ingvar at redpill-linpro.com  Tue Nov  9 15:19:22 2010
From: ingvar at redpill-linpro.com (Ingvar Hagelund)
Date: Tue, 09 Nov 2010 16:19:22 +0100
Subject: Updated packages of varnish-2.1.4 revisited
Message-ID: <4CD9667A.7010908@redpill-linpro.com>

For those that do not follow my blog:

An extra update of the varnish-2.1.4 packages was pushed to Fedora 
(rawhide, f14, f13, epel6), including a bugfix (bug #801)

I also finally got around and fixed 
make-initscript-reload-do-load-and-switch-vcl, by popular request. I had 
a look at the script in Debian, but found it too magical. My version 
uses explicit configuration in /etc/sysconfig/varnish.

Updated packages for RHEL4 and 5 available at the usual place, that is 
http://users.linpro.no/ingvar/varnish/

Most of this will end up upstream rsn, srsly.



A few additional comments on the sysconfig/reload stuff:

Since varnishd did not reload vcl via traditional SIGHUP or other 
old-school unix daemon signals, when this package was first built, a 
'service varnish reload' became a force-reload, that is, ending up 
restarting the daemon (and dropping the cache).

This update includes a script that loads vcl from a preconfigured file, 
and switches to that configuration. If configured to do so, 'service 
varnish reload' will now call this script instead of restarting.

For new RPM installations, and installations where 
/etc/sysconfig/varnish has not been touched, this is default behavior. 
Other users may switch this on by setting the following variables in 
/etc/sysconfig/varnish:

RELOAD_VCL
VARNISH_VCL_CONF
VARNISH_ADMIN_LISTEN_PORT

RELOAD_VCL must be set to 1. Other variables parsed by the script are

VARNISH_SECRET_FILE
VARNISH_ADMIN_LISTEN_ADDRESS


An example:

excerpt from /etc/sysconfig/varnish:

#...
RELOAD_VCL=1
VARNISH_ADMIN_LISTEN_ADDRESS=127.0.0.1
VARNISH_ADMIN_LISTEN_PORT=6082
VARNISH_VCL_CONF=/etc/varnish/default.vcl
VARNISH_SECRET_FILE=/etc/varnish/secret
#...

shell dump:


# service varnish reload
Loading vcl from /etc/varnish/default.vcl
Current running config name is boot
Using new config name reload_2010-11-09T16:17:37
VCL compiled.

available       1 boot
active          0 reload_2010-11-09T16:17:37

Done


That's it.

Ingvar




From ingvar at redpill-linpro.com  Mon Nov 29 10:30:02 2010
From: ingvar at redpill-linpro.com (Ingvar Hagelund)
Date: Mon, 29 Nov 2010 11:30:02 +0100
Subject: Packaging varnish against a jemalloc as a system library
Message-ID: <4CF380AA.3070103@redpill-linpro.com>

I recently added the stand-alone jemalloc-2.0.1 to the Fedora/EPEL 
package collection. It is in rawhide, and will reach the stable-updates 
branches after cooking a few weeks in testing-updates.

Following this, I will change my future builds of varnish for Fedora and 
EPEL to use the system library rather than the version that's included.

A simple patch to make trunk do this is here:
http://users.linpro.no/ingvar/varnish/varnish-jemalloc_as_system_library.patch

The upstream specfile does not reflect this yet, and since the patch is 
trivial and can be maintained in Fedora, and I have heard no plans on 
stopping shipping jemalloc in the source, it can stay like this for now.

Ingvar