Microsoft Explains Recent Hotmail Outage

Hotmail may been losing some of its “geek cred” to more feature rich services such as Gmail, but as one of the most popular email providers in the world, they had a bit of explaining to do after accidentally wiping out the inboxes of over 17,000 users last week. According to Microsoft’s Mike Schackwitz, an error in a script that is used for testing the stability of the service accidentally deleted valid user account folders, rather than just those belonging to internal test bots.
"In Hotmail, one way we monitor the health of the e-mail service is through automated tests. We set up a number of accounts with different configurations, and then use automated tests to log into these accounts, simulate normal user activity and behavior, and report when errors are found," Schackwitz wrote in a blog post. "We use scripts to create and delete these test accounts in bulk. The way we delete a test account is to remove its record from a group of directory servers that route users and incoming mail to the correct mailbox."
Microsoft didn’t really apologize for the error in its blog post, but at least they claim to have learned a valuable lesson. "This issue was one that had not arisen before, and at first, we did not assign it to the correct team for action," Schackwitz wrote. "Additionally, because there were a relatively small number of reports, the volume wasn't high enough to set off alarms. This meant we had a ticket in the system that was getting no action."
Microsoft has restored all missing emails but has this further eroded your trust in Hotmail?
Comments
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schmitty6633
January 10, 2011 at 10:44am
If hotmail should die, will anybody moderately geeky notice?
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thljcl
January 09, 2011 at 3:47pm
I never expect a perfect service from any person or corporation. Serving over a billion customers worldwide, Microsoft is rather good in maintaining a high quality service for last couple of years. This incident affects over 17,000 accounts, which represents a very tiny percentage over the total amount of Hotmail inboxes, which are well over a billion. I’m not one of the affected users. Even if I was, I don’t jump to conclusion too quickly but rather closely observe what Microsoft would do in handling the potential issues.
No, Microsoft does apologize to affected users. It’s clearly stated in the blog post you mentioned. It DOES not apologize to most users because most users are simply not affected. It does, however, tell everyone that it will take steps to prevent same incident from happening.
Occasional issues do not tell the overall reliability. It does tell the responsiveness and responsibility of Microsoft. Admittedly, being the largest email service provider on earth, it’s rather difficult to discover issues quickly, if the issues are not widespread. The blogosphere, well often presents the half-truth, does help Microsoft to look into various rare incidents, further enhancing the reliability of the service. Nevertheless, Microsoft should not count on unjustified claims to improve its service. It its blog post, it does say that it has changed its way to monitor the overall reliability so that this type of incident can be discovered more quickly and easily.
This incident, which is due to unfortunate human error, does bring some benefits to Hotmail users. While bring inconveniences to tiny percentage of all Hotmail users, Microsoft does realize the weaknesses in the previous method of monitoring the reliability of Hotmail services. No data was lost in this incident.
It’s not really as bad as many people wanted it to be. You will never know the reliability of other company until they are too reach the size of Microsoft in providing email services.
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