Twitter explains outage, apologizes for downtime

Twitter is investigating the 'cascading bug' that caused the site to fall offline

Twitter was forced to roll back its software to a previous stable version on Thursday in order to restore service after a two-hour outage, one of its engineers said in a blog post.

Neither hackers nor animated GIFs for user avatars caused the service to crash around 9 a.m. Pacific Time, wrote Mazen Rawashdeh, vice president of engineering.

At least one hacking group claimed responsibility, saying it took Twitter down with a distributed denial-of-service (DDOS) attack, but Twitter says hackers were not the cause. An office move by Twitter and tweets related to the Euro 2012 soccer tournament also were not factors, Rawashdeh wrote.

He reiterated Twitter's message from earlier in the day that blamed a "cascading bug," which Rawashdeh described as a bug that isn't "confined to a particular software element, but rather its effect 'cascades' into other elements as well."

"One of the characteristics of such a bug is that it can have a significant impact on all users, worldwide, which was the case today," Rawashdeh wrote. "As soon as we discovered it, we took corrective actions, which included rolling back to a previous stable version of Twitter."

Twitter came back online briefly around 10:10 a.m. Pacific Time but failed a half-hour later. The site recovered by 11:08 a.m. Pacific Time, Rawashdeh wrote, and a review into the cause is under way.

"It's imperative that we remain available around the world, and today we stumbled," Rawashdeh wrote. "For that we offer our most sincere apologies and hope you'll be able to breathe easier now."

Rawashdeh wrote that Twitter has had some of its highest average marks for reliability and stability over the past six months, experiencing as little as 20 seconds of downtime in a 24-hour period.

"Not today though," Rawashdeh wrote.

Send news tips and comments to jeremy_kirk@idg.com

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Jeremy Kirk

IDG News Service
Show Comments

Cool Tech

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Breitling Superocean Heritage Chronographe 44

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?