Comments on: Christmas Load Balancers http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/ noise from a mozilla IT/Operations wrangler Thu, 09 Feb 2012 17:41:56 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Laura Thomson http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/comment-page-1/#comment-76568 Laura Thomson Wed, 03 Dec 2008 00:13:27 +0000 http://blog.mozilla.com/mrz/?p=173#comment-76568 I'm all for decoupling. I'd vote for hardware LB in front of a farm of commodity cache boxes that could grow as needed (and be tuned/replaced etc). But what do I know ;) I’m all for decoupling. I’d vote for hardware LB in front of a farm of commodity cache boxes that could grow as needed (and be tuned/replaced etc). But what do I know ;)

]]> By: mrz http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/comment-page-1/#comment-76538 mrz Tue, 02 Dec 2008 16:48:00 +0000 http://blog.mozilla.com/mrz/?p=173#comment-76538 @Todd: We looked at A10 awhile back. Their caching support was very 1.0 (by default they didn't cache 302s which we rely on). Worse was that since caching was just recently added, they didn't have weblogging. Since some amount of requests would have been served directly out of the A10's cache, the backend webservers would never have seen the log hit. I really really liked A10's virtual-n-mode cluster though. I'm leaning more towards a multi-layer approach now with some L4 load balancer in front of something like Zeus' ZXTM. @Todd: We looked at A10 awhile back. Their caching support was very 1.0 (by default they didn’t cache 302s which we rely on). Worse was that since caching was just recently added, they didn’t have weblogging. Since some amount of requests would have been served directly out of the A10′s cache, the backend webservers would never have seen the log hit.

I really really liked A10′s virtual-n-mode cluster though.

I’m leaning more towards a multi-layer approach now with some L4 load balancer in front of something like Zeus’ ZXTM.

]]> By: mrz http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/comment-page-1/#comment-76537 mrz Tue, 02 Dec 2008 16:44:37 +0000 http://blog.mozilla.com/mrz/?p=173#comment-76537 @Yusuf: I am actually. Yesterday I moved https://versioncheck.addons.mozilla.org/ over to a three node ZXTM cluster. In general I like Zeus but I don't like the no-CLI interface. I also wish their clustering method allowed me to advertise just one DNS record instead of multiple. That eats IP addresses fast. Consider a ten node ZXTM cluster and 10 websites, each of which requires its own IP address. That's 100 IPs off the bat. I'm considering putting the ZXTM cluster behind some L4 load balancer like Cisco's ACE or a Foundry ServerIron. @Yusuf: I am actually. Yesterday I moved https://versioncheck.addons.mozilla.org/ over to a three node ZXTM cluster.

In general I like Zeus but I don’t like the no-CLI interface. I also wish their clustering method allowed me to advertise just one DNS record instead of multiple. That eats IP addresses fast.

Consider a ten node ZXTM cluster and 10 websites, each of which requires its own IP address. That’s 100 IPs off the bat.
I’m considering putting the ZXTM cluster behind some L4 load balancer like Cisco’s ACE or a Foundry ServerIron.

]]> By: Todd Walker http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/comment-page-1/#comment-76519 Todd Walker Tue, 02 Dec 2008 13:49:54 +0000 http://blog.mozilla.com/mrz/?p=173#comment-76519 How about www.a10networks.com ? The A10 AX3100 is rated at 24,000 SSL connections per second. IPv6 included for free. RAM is utilized for caching - I think up to 50% of physical RAM. How about http://www.a10networks.com ? The A10 AX3100 is rated at 24,000 SSL connections per second. IPv6 included for free. RAM is utilized for caching – I think up to 50% of physical RAM.

]]> By: rwg http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/comment-page-1/#comment-76508 rwg Tue, 02 Dec 2008 12:41:02 +0000 http://blog.mozilla.com/mrz/?p=173#comment-76508 Don't forget "working IPv6 support that doesn't cost thousands of dollars extra." Don’t forget “working IPv6 support that doesn’t cost thousands of dollars extra.”

]]> By: Yusuf http://blog.mozilla.com/mrz/2008/12/01/christmas-load-balancers/comment-page-1/#comment-76507 Yusuf Tue, 02 Dec 2008 10:37:23 +0000 http://blog.mozilla.com/mrz/?p=173#comment-76507 Have you looked at Zeus http://www.zeus.com/ It's software based so you can take advantage of Moore's Law with faster hardware. Would be a good idea to see how this could be paired with the Sun T5440 which have onboard SSL ofloaders Have you looked at Zeus

http://www.zeus.com/

It’s software based so you can take advantage of Moore’s Law with faster hardware. Would be a good idea to see how this could be paired with the Sun T5440 which have onboard SSL ofloaders

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