Incident History

This incident has been resolved.

This incident has been resolved.

Incident Summary

Between June 3rd 2024, 18:24 UTC and June 4th, 1:21 UTC, MongoDB Atlas customers across all commercial regions experienced degradation of the following functionalities.

Changes to cluster configuration, both in response to API calls and automated triggers (e.g., auto-scaling or node replacement) were executed with delays varying between a few minutes and several hours. Similar delays applied to Alert processing, impacting both the Atlas built-in Alert functionality and integrations such as Datadog and PagerDuty. Part of the daily cost tabulation for compute, storage and data transfer on June 3rd will be delayed to June 6th or June 7th. Lower granularities of cluster metrics were unavailable until up to 1:56 UTC. Finally, the Data Explorer and Realtime Performance Panel UIs were impaired for several hours.

Root Cause

The root cause of this incident was an unexpected failure during an Atlas internal maintenance activity. A planned migration of metadata for an internal workflow management system that backs the Atlas control plane resulted in unexpected resource congestion on the target database cluster as traffic was redirected to the target. This issue did not occur during pre-production testing. The rollback process required complex reconciliation of data in the source and target databases, delaying recovery.

MongoDB Actions

The MongoDB Atlas team is designing a new metadata migration strategy for future maintenance activities. This process will allow for rollback within less than 15 minutes of detecting a potential issue. We will not execute similar maintenance activities until this procedure is implemented and thoroughly tested.

Recommended Customer Actions

This issue was fully eliminated by the MongoDB Atlas team and does not require customer action.

This incident has been resolved.

This issue has been fully resolved. Thank you for your patience.

This incident has been resolved.

This incident has been resolved.

This incident has been resolved.

This incident has been resolved.

We have resolved the issue and all systems are operating normally