Comments on: LVS persistence and AOL proxies

By: - Marius -

- Marius - — Tue, 03 Nov 2009 19:39:36 +0000

I am still using lvs for various projects, but the ones that requires application persistence I found it to be much better by using haproxy and cookies as load balancing strategy.

By: Bill McGonigle

Bill McGonigle — Mon, 02 Nov 2009 20:57:34 +0000

Hi, Marius, thanks – the cluster I’m thinking of has certain financial limits on it in terms of nodes (only 4 hardware nodes) and rackspace that make LVS-DR the more practical solution (heavy traffic, low budget… go figure), but it’s good to have options! With DR, everybody works fine all the time, except for AOL users who would have a problem only if one of the machines smoked. They’re large enough to be worth implementing Apache hackery for but not large enough to build an different infrastructure for, in this particular instance. Just curious given your comment – did you eventually give up on the FWMARK strategy for your AOL clients or are you using it together with haproxy (I understand it works with LVS-NAT now).

By: - Marius -

- Marius - — Mon, 02 Nov 2009 19:30:50 +0000

@Bill McGonigle: if this is important for you I would suggest to use cookie pased load balancing (haproxy does that very well).

By: Bill McGonigle

Bill McGonigle — Fri, 30 Oct 2009 22:07:17 +0000

This is good, but be careful – recent AOL versions will alternate requests among the AOL proxies and the native IP address of the client, if on broadband. This is in contradiction to AOL guidance, and may be a bug, but I’ve got the wiresharks captures to show it. AOL refuses to answer any mail I’ve sent them about it, so I’ve been implementing UserAgent matches and reverse-proxies in apache to drive all AOL traffic to a specific server. If that server goes down, everybody is fine except for AOL users, but aside from fixing the web application (not in my jurisdiction) there’s not much else that can be done.

By: alex tam

alex tam — Tue, 31 Mar 2009 06:12:00 +0000

thanks for your post,great info.

By: Unblock Me

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