Changes / MongoDB Atlas / AWS Cluster DNS Changes Degraded Performance

MongoDB Atlas: Major incident: AWS Cluster DNS Changes Degraded Performance

Summary

MongoDB Atlas for Government had a major AWS cluster DNS degradation from 2026-05-07 15:17 UTC to 2026-05-07 22:15 UTC, lasting 6 h 57 min; cluster topology changes could be delayed or fail. MongoDB patched bad metadata causing ACME-related DNS issues and confirmed DNS and cluster updates were healthy.

Machine-written from the diff below (Sol; type: incident degradation). Check the diff before relying on it.

Major incidentLabel: degradation (model (Jev), 66%)Changed Detected Source: stspg.io

What changed

AddedTitle#1
Before: not present
After: AWS Cluster DNS Changes Degraded Performance
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2026-05-07 15:17 UTC
AddedResolved time#5
Before: not present
After: 2026-05-07 22:15 UTC
AddedAffected components#6
Before: not present
After: MongoDB Atlas for Government
AddedUpdateidentified#7
Before: not present
After: DNS changes for AWS clusters are currently degraded. We've identified the issue and are pushing out a patch.
AddedUpdateidentified#8
Before: not present
After: DNS changes for AWS clusters are currently degraded. Cluster topology modifications may be delayed or not able to complete successfully. We've identified the issue and are pushing out a patch.
AddedUpdateidentified#9
Before: not present
After: Mitigation is in progress; recovery for DNS operations and downstream cluster topology changes has begun.
AddedUpdateinvestigating#10
Before: not present
After: We are still seeing cases where new cluster update requests are failing to go through due to ACME related DNS issues. We are actively investigating this issue.
AddedUpdatemonitoring#11
Before: not present
After: We've identified a bad piece of metadata causing DNS issues. We've since patched this metadata and are seeing recovery in ACME updates for cluster topology changes. We will continue to monitor recovery.
AddedUpdatemonitoring#12
Before: not present
After: We are continuing to monitor for any further issues.
AddedUpdateresolved#13
Before: not present
After: DNS updates for ACME are confirmed healthy. Cluster updates are now proceeding as expected.

First version of this incident archived by Rewindex. View the live incident.

History of this incident

When (UTC)ChangeKind
Major incident: AWS Cluster DNS Changes Degraded Performance (this change)
MongoDB Atlas for Government had a major AWS cluster DNS degradation from 2026-05-07 15:17 UTC to 2026-05-07 22:15 UTC, lasting 6 h 57 min; cluster topology changes could be delayed or fail. MongoDB patched bad metadata causing ACME-related DNS issues and confirmed DNS and cluster updates were healthy.
Major incident

All MongoDB Atlas changes → · MongoDB Atlas profile · Markdown · JSON