nanog mailing list archives
Re: FYI Netflix is down
From: Scott Howard <scott () doc net au>
Date: Sat, 30 Jun 2012 13:19:54 -0700
On Sat, Jun 30, 2012 at 12:04 PM, Todd Underwood <toddunder () gmail com>wrote:
This was not a cascading failure. It was a simple power outage Cascading failures involve interdependencies among components.
Not always. Cascading failures can also occur when there is zero dependency between components. The simplest form of this is where one environment fails over to another, but the target environment is not capable of handling the additional load and then "fails" itself as a result (in some form or other, but frequently different to the mode of the original failure). Whilst the Amazon outage might have been a "simple" power outage, it's likely that at least some of the website outages caused were a combination of not just the direct Amazon outage, but also the flow-on effect of their redundancy attempting (but failing) to kick in - potentially making the problem worse than just the Amazon outage caused. Scott
Current thread:
- Re: FYI Netflix is down, (continued)
- Re: FYI Netflix is down Justin M. Streiner (Jun 30)
- Re: FYI Netflix is down Seth Mattinen (Jun 30)
- Re: FYI Netflix is down Todd Underwood (Jun 30)
- Re: FYI Netflix is down Jimmy Hess (Jun 30)
- Re: FYI Netflix is down Seth Mattinen (Jun 30)
- Re: FYI Netflix is down Todd Underwood (Jun 30)
- Re: FYI Netflix is down Jimmy Hess (Jun 30)
- Re: FYI Netflix is down Mike Devlin (Jun 30)
- Re: FYI Netflix is down Seth Mattinen (Jun 30)
- Re: FYI Netflix is down Jared Mauch (Jun 30)
- Re: FYI Netflix is down Scott Howard (Jun 30)
- Re: FYI Netflix is down Todd Underwood (Jun 30)
- Re: FYI Netflix is down Brett Frankenberger (Jun 30)
- Re: FYI Netflix is down William Herrin (Jun 29)