Varnish replication?

Sascha Ottolski ottolski at
Mon Feb 18 14:44:50 CET 2013

Am Montag, 18. Februar 2013, 13:37:46 schrieb Rafał Radecki:
> Hi all.
> I have a two node pacemaker cluster. If primary node goes down then
> secondary node takes its role.
> I use varnish on both nodes. When I switch to the secondary node the
> cache needs to be regenerated (as expected). Is there a way to
> replicate varnish cache between two servers? Something like conntrackd
> for iptables?
> Best regards,
> Rafal Radecki.

I would recommend an active/active setup instead. Put a loadbalancer in 
front, and let it distribute the request to both nodes. If one goes 
down, the other is obviously warm. No special "tricks" required, and you 
make better use of you're hardware when both nodes are fine.



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