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Re: FYI Netflix is down


From: Todd Underwood <toddunder () gmail com>
Date: Sat, 30 Jun 2012 15:04:22 -0400

This was not a cascading failure.  It was a simple power outage

Cascading failures involve interdependencies among components.

T
On Jun 30, 2012 2:21 PM, "Seth Mattinen" <sethm () rollernet us> wrote:

On 6/30/12 9:25 AM, Todd Underwood wrote:

On Jun 30, 2012 11:23 AM, "Seth Mattinen" <sethm () rollernet us
<mailto:sethm () rollernet us>> wrote:


But haven't they all been cascading failures?

No.  They have not.  That's not what that term means.

'Cascading failure' has a fairly specific meaning that doesn't imply
resilience in the face of decomposition into smaller parts.  Cascading
failures can occur even when a system is decomposed into small parts,
each of which is apparently well run.



I honestly have no idea how to parse that since it doesn't jive with my
practical view of a cascading failure.

~Seth




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