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Optimizely: Microsoft Azure App Service / Web Apps - Investigating

Timeline of updates

1. resolved2018-03-21 14:54 UTC

   From Microsoft: Service and App Service Linux - Multiple Regions Summary of impact: Between 22:10 UTC on 20 Mar 2018 and 13:30 UTC on 21 Mar 2018, a subset of customers using App Service and App Service Linux in multiple regions may have experienced issues when performing Service Management functions. Errors may have included timeouts, portal blades failing to load, or failures when leveraging Service Management API's. Runtime availability for App Service was not impacted during this time. Preliminary root cause: Engineers determined that a recent deployment task caused some backend services to experience CPU spikes, which in-turn caused some Service Management requests to fail. Mitigation: Engineers performed a code update which optimized the execution path, and removed the CPU spike condition, thus mitigating the issue. Next steps: Engineers will continue to investigate to establish the full root cause and prevent future occurrences.

From Optimizely’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.

Impact, status and times are the vendor’s own, as last archived. View on status.optimizely.com (opens in new tab).

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