mrz's noise

noise from a mozilla IT/Operations wrangler

Posts tagged with “load balancing”

Geolocation & Zeus ZXTM 6.0

Mozilla’s North American store has been down in maintenance mode (you can read about the why) but not the International Store. The old store used to redirect non-North American users to the International Store, but unfortunately that redirect wasn’t carried over when we took the store offline. I was inspired Sunday night to put together… Read more

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Categories: load balancing, Mozilla

Load Balancer performance issues, fxfeeds.mozilla.org & versioncheck

I mentioned briefly in Monday’s meeting the performance issues we’re having with our load balancers.  Since then, we’ve been hustling to turn up something in the short term to handle Thursday’s Major Update and Firefox 3.0.5/2.0.0.19 release (see here). For a number of months we’ve been looking at Zeus and their ZXTM product.  It has… Read more

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Categories: load balancing, Mozilla

Christmas Load Balancers

Dear Santa, All I want for Christmas is a load balancer that does not suck.  It should do the following: Terminate and offload SSL sessions at a rate of no less than 20,000/sec Provide in-memory content caching Support web logging, Apache-style (and despite what some hardware vendors thing, web logging is really important) Have some… Read more

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Categories: load balancing

geodns, one week later

Finally got our home-grown GeoDNS deployed last week, one week later than I wanted.  A couple deployment issues and bug 435134 got in the way. We’re finding all sorts of uses for this now and have moved several websites over to this and have a couple more websites/services (like IRC) scheduled for this. Purely out… Read more

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Categories: load balancing, Mozilla, Networking

Geo DNS or getting the bits closer to you.

The Mozilla community is blessed with a lot of freely donated bandwidth through our mirror network.  This network handles product downloads through bouncer and a subset of this handles releases.mozilla.org, which carries contains Firefox, Thunderbird, Camino, Seamonkey, and Sunbird releases and Add-ons (and is huge, clocking in around 100-130G). releases.mozilla.org is handled through round-robin DNS. … Read more

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Categories: load balancing, Mozilla, Networking

Hello China.

Over the past year we’ve talked about our market share in China (since last April anyways). Li Gong joined Mozilla and in June we had an office. In August I was in China with Justin to setup office infrastructure (phones, vpn) and shop for data center space. In December I was back in China to… Read more

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Categories: load balancing, Mozilla

China, Amsterdam, San Jose and global load balancing

Mozilla’s current GSLB (global server load balancing[1]) solution (Citrix Netscalers) is a mix of active proximity probes and static map assignments. The algorithm first checks to see if there’s a match in the static maps and then falls back to proximity metrics. If that’s missing, it’ll round-robin through all the GSLB sites (effectively three –… Read more

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Categories: load balancing, Mozilla, Networking