Twitter Blames Two-Hour Failure on Dual Data-Center Crashes - quinnpase1945

A Twitter outage on Thursday that lasted as long as two hours for some users was caused by separate information centers failing at nearly the unvarying time, the company aforementioned in an apologetic web log post.

Twitter went down between about 8:20 a.m. and 9 a.m. Pacific Time connected Th and was back in action by about 10:25 a.m., wrote Mazen Rawashdeh, frailty president of engineering. Though some users suspected an overload of Tweets incidental to the Olympian Games, which opens on Friday in London, that was non the cause of the outage.

Instead, two information centers that maneuver in parallel for redundancy both failed, in what Rawashdeh titled an "infrastructural forked whammy."

"What was noteworthy about today's outage was the coincidental failure of deuce parallel systems at nearly the duplicate time," Rawashdeh wrote. "We are investment sharply in our systems to void this situation in the hereafter."

It was Twitter's second outage in about sextet weeks. On June 21, the microblogging divine service went down about 9 a.m. Pacific and started to return just afterward 10 a.m., only to fail once again before full recovery began after 11 a.m. The company blamed that outage along a cascading tap, a type of problem that spreads from one software element to others.

Stephen Lawson covers Mobile River, storage and networking technologies for The IDG News Service. Follow Stephen on Twitter at @sdlawsonmedia. Stephen's electronic mail address is stephen_lawson@idg.com

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