How long will big-name customers like Netflix put up with Amazon cloud outages?

By Brandon Butler, Network World |  Cloud Computing, Amazon Web Services, Netflix

On Christmas Eve as Netflix customers cuddled up to watch their favorite holiday movies and TV shows with friends and family, many experienced a problem. Netflix was down.

More precisely, Amazon Web Service's public cloud, which Netflix relies on to stream content to customers, experienced an outage in its U.S.-East region, the same spot that has been plagued by some of the company's other biggest blunders of its public cloud services.

Netflix is a poster-child customer for using AWS services at large scale. At Amazon's first-ever user conference in November, Netflix CEO Reed Hastings participated in a keynote Q&A with AWS CTO Werner Vogels, reiterating the value AWS provides to the company. Netflix cloud guru Adrian Cockcroft gave speeches to standing-room only conference rooms at the show giving advice to customers on how to architect AWS clouds for fault tolerance and high availability.

While Cockcroft and Vogels have repeated many times that outages are inevitable, the timing of this most recent Christmas Eve crisis at Netflix and Amazon has some asking the question: How long will Netflix and other big-name customers put up with Amazon cloud outages?

WE'VE BEEN HERE BEFORE: Amazon cites cause of recent outage, issues refunds 

BUZZBLOG: Why all Amazon's apologies all sound the same 

In a post-mortem report, Amazon says an employee accidentally deleted information that controls Elastic Load Balancers (ELB) in its cloud around 12:30 PT on Dec. 24. The maintenance process was thought to be running on a test environment, but in fact it was on production workloads. The deleted data did not allow new ELB configurations to be created, which allow customers to spread workloads across multiple virtual machines. A first attempt to fix the problem by replacing the deleted data failed, and the successful replacement of the data did not occur until 5:40 a.m. Christmas morning. By 10:30 a.m. almost all issues had been restored, but not before AWS estimates that 6.8% of the company's running ELBs were impacted.


Originally published on Network World |  Click here to read the original story.
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