nanog mailing list archives
Re: FYI Netflix is down
From: Leo Bicknell <bicknell () ufp org>
Date: Mon, 2 Jul 2012 09:09:09 -0700
In a message written on Mon, Jul 02, 2012 at 11:30:06AM -0400, Todd Underwood wrote:
from the perspective of people watching B-rate movies: this was a failure to implement and test a reliable system for streaming those movies in the face of a power outage at one facility.
I want to emphasize _and test_. Work on an infrastructure which is redundant and designed to provide "100% uptime" (which is impossible, but that's another story) means that there should be confidence in a failure being automatically worked around, detected, and reported. I used to work with a guy who had a simple test for these things, and if I was a VP at Amazon, Netflix, or any other large company I would do the same. About once a month he would walk out on the floor of the data center and break something. Pull out an ethernet. Unplug a server. Flip a breaker. Then he would wait, to see how long before a technician came to fix it. If these activities were service impacting to customers the engineering or implementation was faulty, and remediation was performed. Assuming they acted as designed and the customers saw no faults the team was graded on how quickly the detected and corrected the outage. I've seen too many companies who's "test" is planned months in advance, and who exclude the parts they think aren't up to scratch from the test. Then an event occurs, and they fail, and take down customers. TL;DR If you're not confident your operation could withstand someone walking into your data center and randomly doing something, you are NOT redundant. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Re: FYI Netflix is down Jay Ashworth (Jul 01)
- Re: FYI Netflix is down steve pirk [egrep] (Jul 01)
- <Possible follow-ups>
- RE: FYI Netflix is down Dan Golding (Jul 02)
- Re: FYI Netflix is down Todd Underwood (Jul 02)
- Re: FYI Netflix is down Leo Bicknell (Jul 02)
- Re: FYI Netflix is down david raistrick (Jul 02)
- Re: FYI Netflix is down Leo Bicknell (Jul 02)
- Re: FYI Netflix is down david raistrick (Jul 02)
- Re: FYI Netflix is down Leo Bicknell (Jul 02)
- Re: FYI Netflix is down Cameron Byrne (Jul 02)
- Re: FYI Netflix is down Tony McCrory (Jul 02)
- Re: FYI Netflix is down Paul Graydon (Jul 02)
- Re: FYI Netflix is down James Downs (Jul 02)
- Re: FYI Netflix is down david raistrick (Jul 02)
- Re: FYI Netflix is down James Downs (Jul 02)
- Re: FYI Netflix is down Todd Underwood (Jul 02)