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Performance degradation - 11/16 - Mitigated

  • Article

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.

  • 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.