FYI Netflix is down

Todd Underwood toddunder at gmail.com
Sat Jun 30 19:04:22 UTC 2012


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 at rollernet.us> wrote:

> On 6/30/12 9:25 AM, Todd Underwood wrote:
> >
> > On Jun 30, 2012 11:23 AM, "Seth Mattinen" <sethm at rollernet.us
> > <mailto:sethm at 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
>
>



More information about the NANOG mailing list