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The blog search engine Technorati suffered from both downtime and slowdown during large periods of December 12 and 13. In those two days, the Technorati website was completely unavailable for a total of more than 9 hours.
There are indications that the problems may have been caused by database issues at Technorati.
The recent world-wide financial chaos has reminded us how sensitive the stock market is, with sharp up- and downturns. Now imagine the reaction of the stock traders if they couldn’t trade at all. It doesn’t happen very often, but it does happen.
Stock exchanges usually have strict SLAs and high demands on availability, but they can’t completely avoid downtime. We have gathered up some of the major stock exchange outages that have occurred so far this decade (i.e. since 2000 and onward) and listed when and why they happened.
