[Outages-discussion] Amazon AWS Monday Outage preliminary postmortem

[George Herbert]

On Oct 23, 2012, at 8:12 PM, Jay Ashworth <jra at baylink.com> wrote:

> While they haven't yet posted an RCA, that I've seen, it is interesting
> to see that even though past outages had a "data plane issue leaks over 
> into control plane" cascade problem, and they specifically targeted that 
> to fix, it appears to have happened again in this outage.

Well, maybe.

More things could have broken lots of EBS than the net fail - unexpected failover to mgt plane - overload - sw architecture unbounded fail mode response there in April 2011.

It was not nearly as catastrophic inside, as a current client saw.  Some things down but not most.  Enough to overwhelm normal single site DR in many cases though.

RCA eagerly awaited.


George William Herbert
Sent from my iPhone