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[Europe West] Experiencing Data Latency for Log Analytics - 02/16 - Resolved

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Azure-Monitor-Team
Former Employee
Feb 16, 2022
Final Update: Wednesday, 16 February 2022 18:25 UTC

We've confirmed that all systems are back to normal  as of 02/16 17:55 UTC. Our logs show the incident started on 02/16, 13:07 UTC and that during this duration that it took to resolve the issue  customers in West Europe region might have experienced data latency and missed alerts.
  • Root Cause: We have found that a backend service that Log Analytics is reliant on has become unhealthy causing the latencies.
  • Incident Timeline:   02/16, 13:07 UTC through 02/16 17:55 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.

-chandar

Update: Wednesday, 16 February 2022 17:00 UTC

We have found that a backend service that Log Analytics is reliant, has become unhealthy causing ingestion latencies. We performed a repair of a backend node to mitigate the issue and we have started to see recovery. To expedite the recovery, we have also scaled out the number of instances of one of our backend services.

  • Work Around:
  • Next Update: Before 02/16 19:00 UTC
-chandar

Updated Feb 16, 2022
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