Azure Boards Slowness in Central US – 09/26 – Mitigated


Final Update: Wednesday, September 26th 2018 14:59 UTC

We’ve confirmed that all systems are back to normal as of 26 September 14:08 UTC. Our logs show the incident started on 26 September 13:45 UTC and that during the 23 minutes that it took to resolve the issue. 0.3% of customers experienced Azure Boards slowness, primarily when attempting to get a Work Item, in Central US. Sorry for any inconvenience this may have caused.

  • Root Cause: The failure was due to blocking in a single database in Central US.
  • Chance of Re-occurrence: Low - We are investigating what the trigger was for the blocking, but was potentially a deployment.
  • Lessons Learned: We will work on identifying and mitigating blocking faster in the future.
  • Incident Timeline: 23 minutes – 26 September 13:45 UTC through 26 September 14:08 UTC.

Sincerely,
Dexter


Initial notification: Wednesday, September 26th 2018 14:16 UTC

We're investigating slowness using Azure Boards in Central US. We are triaging the issue and will provide more information as it becomes available.

  • Initial investigation points to an issue which is impacting a single database
  • Users may see general slowness when interacting with Azure Boards
  • Next Update: Before Wednesday, September 26th 2018 14:50 UTC

Sincerely,
Dexter


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