Earlier today, Gmail, Google+ and some other Google services suffered an outage for a few hours. The company’s initial statement was not very informative on the outage. It had said that :
“We’re investigating reports of an issue with Gmail. We will provide more information shortly.”
Google has now published a post mortem of the incident on its official blog and said that the Gmail, Google Calendar and Google+ outage was the result of “an internal system that generates configurations—essentially, information that tells other systems how to behave.” Google has admitted that Gmail, Google Calender and Google+ users were not able to access these services for 25 minutes and for 10 percent users the outage was for 30 minutes.
Google has said in the post that the configuration was corrected within fifteen minutes but it took a few hours to fully propagate to all users, hence the extended outage for many users.
The post further says the the issue stands corrected, however, Google is now working on correcting the bug itself so that the same situation does not arise in future.