On UPS and Generators
November 20, 2008 by lordallenhernandez

About a week ago, Friendster users were shocked why most of their friends were missing or deleted. Days later, an official announcement from the Friendster team revealed the real reason behind the problem.
According to them, “There was a building-wide power outage at the QTS/Globix Data Center in Sunnyvale, California, USA where Friendster’s servers are co-located, along with about 50 other customers. As a result, the memory caching of data was affected. Since Friendster has 85 million users, the cache is taking a considerable amount of time to build. Once the cache has been completely built, all friends will re-appear.”
I checked the net about the validity of the news and found that it was, indeed, true. You can read the entire stuff right here and here.
The UPS and generators did not do there job. So blame it to those UPS and generators, people!
According to this website, “The Santa Clara facility was back on generator within two hours, but Friendster remained offline for more than 23 hours over three days.”
That troubled me most. Just imagine how a power outage that lasted for two hours can make a big difference or ultimately wreck havoc into a system of a particular company. This clearly questioned Friendster’s system’s reliability.
Hopefully, Friendster can learn from their mistakes. As for me, I’m switching to Facebook.
Sounds like a cascade failure. Does anyone know why both gensets and UPS could fail? I thought they were independent?