Degraded performance for some Copilot users


Incident resolved in 5h28m54s

Resolved

Between September 25, 2024, 22:20 UTC and September 26, 2024, 5:00 UTC the Copilot service was degraded. During this time Copilot chat requests failed at an average rate of 15%.This was due to a faulty deployment in a service provider that caused server errors from multiple regions. Traffic was routed away from those regions at 22:28 UTC and 23:39 UTC, which partially restored functionality, while the upstream service provider rolled back their change. The rollback was completed at 04:41 UTC.We are continuing to improve our ability to respond more quickly to similar issues through faster regional redirection and working with our upstream provider on improved monitoring.

1727327325

Investigating

Monitors continue to see improvements. We are declaring full recovery.

1727327294

Investigating

Copilot is operating normally.

1727327033

Investigating

We've applied a mitigation to fix the issues and are seeing improvements in telemetry. We are monitoring for full recovery.

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Investigating

We believe we have identified the root cause of the issue and are monitoring to ensure the problem does not recur.

1727318050

Investigating

We are continuing to investigate the root cause of the latency previously observed to ensure there is no reoccurrence, and better stability going forward.

1727315194

Investigating

We are continuing to investigate the root cause of the latency previously observed to ensure there is no reoccurrence, and better stability going forward.

1727312599

Investigating

Copilot users should no longer see request failures. We are still investigating the root cause of the issue to ensure that the experience will remain uninterrupted.

1727310573

Investigating

We are seeing recovery for requests to Copilot API in affected regions, and are continuing to investigate to ensure the experience remains stable.

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Investigating

We have noticed a degradation in performance of Copilot API in some regions. This may result in latency or failed responses to requests to Copilot. We are investigating mitigation options.

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Investigating

We are investigating reports of degraded performance for Copilot

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