On Thu, 12 Feb 2004 06:08:21 -0800, Brion Vibber wrote:
- browne and coronelli have test squid installations that Gabriel is
setting up, testing failover systems etc.
These two systems are configured as siblings, they share their storage and ram as one big cache without duplicating information.
We've done some load balancing tests to find the optimal configuration, particularly in case of an imbalance between the Apaches. Dynamic load balancing that takes the individual load of each Apache into account isn't set up yet, given the high numbers of requests this might not be necessary anyway as the differences between the requests tend to even out. In case one Apache is overloaded or down the requests are passed on to other machines, so fail-over is automatic and transparent to the users.
Heartbeat is installed on both machines, but not yet configured. This could be done together with an update to Linux 2.6 which should have better performance on the Squids than 2.4.