The Twitter site went down on twice on Thursday, as the company struggled to recover from technical issues.  Twitter blogged to say: “Users may be experiencing issues accessing Twitter. Our engineers are currently working to resolve the issue.”  In addition, it stated in a later post: “The issue has been resolved and all services are currently operational.” That sentence was then scrubbed and replaced with: “The issue is on-going and engineers are working to resolve it.”   Although Twitter was previously known to have site stability challenges in its earlier years, it has been experiencing much better stability lately.

Apica, a site performance monitoring service said that the page errors began at 9:33 a.m. New York time, then it went down in its entirety.   The company restored service at 11a.m. and then blogged after 3p.m. that “Today’s outage is due to a cascaded bug in one of our infrastructure components.”  Twitter denied claims that the Thursday’s outage was caused by hackers, but rather something described as a “cascading bug” that moved through its software environment.    The company claimed that the site has been especially stable over the last six months, “averaging 23 hours, 59 minutes and 40-ish seconds” each day.

Related Link:

http://bits.blogs.nytimes.com/2012/06/21/twitters-site-suffers-some-downtime/?nl=todaysheadlines&emc=edit_th_20120622