MongoDB Realm Sync: 503 Service Unavailable

Incident Report for MongoDB Cloud

Resolved

This incident has been resolved.

Posted Nov 10, 2020 - 20:23 UTC

Monitoring

A fix has been implemented and we are monitoring the results.

Posted Nov 10, 2020 - 20:10 UTC

Update

We have reverted the configuration change that caused the issue, and apps should begin to allow successful connections again.

Posted Nov 10, 2020 - 20:09 UTC

Identified

We have received reports of "503 Service Unavailable" errors when connecting to Realm Sync. The issue has been identified as due to a change in load balancer configuration, and affects websocket connections used by Sync clients in all regions.
Regular non-websocket HTTP requests (functions, webhooks) are unaffected.

Posted Nov 10, 2020 - 19:51 UTC

This incident affected: MongoDB Atlas App Services and Device Sync.