Customer Impacting event in Azure DevOps in East Australia – 11/9

Final Update: Wednesday, November 9th 2018 05:18 UTC

We have confirmed that all systems are back to normal as of November 9th 2018 04:45 UTC. Our logs show the incident started on November 9th 2018 03:05 UTC and during this time, a peak of 653 users would have experienced slowness while working on Azure DevOps. Sorry for any inconvenience this may have caused.
Root Cause: The initial symptom indicates high CPU on 2 of our Application Tier(AT) roles, recycling these roles lead to mitigation.
Lessons Learned: We have collected the diagnostic information from the recycled ATs and are trying to understand the cause.
Chance of Re-occurrence: High as we do not understand what high CPU.


We're actively investigating Performance Degradation in East Australia region.

  • Next Update: Friday, November 9th 2018 05:30 UTC


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