adrianco

5 ms·

31.
by adrianco 14y ago
Monitoring is done with two systems, one in-house in-band that we might open source one day (was called Epic, currently called Atlas). The other is AppDynamics running as a SaaS application with no dependencies on AWS. There is some useful
32.
by adrianco 14y ago
I ran one of the recommendation algorithm teams for a few years before we did the cloud migration. The techblog summaries of the algorithms are pretty good. The implementation is lots of fine grain services and data sources, changing contin
33.
by adrianco 14y ago
Visit slideshare.net/netflix and read my architecture slides, there's plenty of detail about how Netflix works available if you have a few hours to look through it.
34.
by adrianco 14y ago
Some stuff is in real time, some is pre-calculated. There is an enormous amount of research and testing going on in this space all the time, its complex and it's evolving fast.
35.
by adrianco 14y ago
Netflix is designed to run on two out of three availability zones in a region. There are tens of TB of customer data triple replicated in that region, which has off-region archive but we don't live replicate the data intensive data sources.
36.
by adrianco 15y ago
There isn't a 50% extra hardware cost. You spread systems over three zones and run at the normal utilization levels of 30-60%. If you lose a zone while you are at 60% you will spike to 90% for a while, until you can deploy replacement syste
37.
by adrianco 15y ago
I think it's incredible that you guys can run a site at all with the few people you've got. Hope it all gets better again soon.
38.
by adrianco 15y ago
Netflix pays standard rates for instances but uses reserved instances to pay less on bulk EC2 deployments