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Saturday, June 23, 2012

Why Twitter stopped working for a few hours


After years in which Twitter users were accustomed to see the now famous whale confirming that their servers were down, the microblogging social network had managed to overcome the constant crashes, and offer a fairly stable. So, yesterday fell for one hour (and then return to fall several times) became news. The firm had announced hours before his plans to conquer new markets 50 and get 1,000 million dollars in advertising revenue in 2013, so the day was even still less conducive to withhold his services. As expected, many took to speculate on the reasons that Twitter had been dropped. The company did not suffer a hack , as it was pointing, but was affected by a cascading failure . "It was due to hacking, or our new office, or Euro, or GIF avatars are, as some were saying today," he explained in an official blog post on the Engineering Vice President, Mazen Rawashdeh. The reason, explains Rawashdeh, was in a ruling that triggered a domino effect. "A fault whose effect is not limited to a particular software element, but affects cascaded to other elements." When an error of this kind, all users were affected, so that Twitter decided to return to a previous version "stable" , prior to the victim, to get back to providing service. According to the latest figures provided by the company in the last six months Twitter has maintained higher percentages of stability, between 99.96% and 99.99%.

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