All About Microsoft posted details on the five-hour-plus outage in Microsoft's Visual Studio Online service earlier this month
In an August 22 blog post Technical Fellow and Product Unit Manager Brian Harry detailed the causes of what he described as "one of the worst incidents we've ever had on VS Online."Microsoft: What caused one of the worst Visual Studio Online outages ever
Visual Studio Online is Team Foundation Server plus a few other related services running on Azure.
On August 14, the VS Online core Shared Platform Services (SPS) databases became overwhelmed with database updates that queued up so badly that callers were blocked, explained Harry.
