# How to Monitor MongoDB Atlas Uptime

> MongoDB Atlas is a fully managed cloud database service for MongoDB, handling deployment, scaling, and operations across AWS, Azure, and Google Cloud.

*Source: https://monitoristic.com/monitor/mongodb-atlas*

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## Why Monitor MongoDB Atlas?

Atlas manages your database, but managed doesn't mean immune. Free and shared clusters pause after inactivity, connection limits get exhausted, and slow queries can grind your app to a halt. When your database becomes unreachable, your entire application stops working — and Atlas won't proactively tell you.

## What to Monitor

- `your-app.com/api/db-health` — App endpoint that performs a database query and returns 200
- `your-app.com/api/status` — API status that depends on database connectivity
- `your-app.com` — Main app that fails when the database is unreachable

## What You Should Actually Do

1. Expose a database health endpoint in your app (e.g., /api/db-health) that runs a lightweight query and returns 200 only if the database responds
2. Monitor that endpoint externally — you can't point an HTTP monitor at MongoDB directly, so monitor through your app
3. Track response times to catch slow queries and connection pressure before they become full outages
4. If you're on a free or shared cluster, keep regular checks running to detect pausing and connection limits early
5. Watch for connection pool exhaustion — serverless functions are notorious for leaking connections to Atlas

## MongoDB Atlas's Official Status Page

MongoDB Atlas publishes real-time status at https://status.mongodb.com. Your own monitor complements it by catching connection-level issues, often before the status page updates.

## Takeaway

MongoDB Atlas takes the operational burden off your database, but it puts a different burden on you: knowing when the database is the reason your app broke. Connection limits, cluster pausing, and slow queries all surface as application errors, not database alerts. Monitoring a database-backed endpoint is how you catch them.

## Frequently Asked Questions

### Can I monitor MongoDB Atlas directly with an uptime monitor?

Not directly — HTTP monitors check HTTP endpoints, and MongoDB uses its own wire protocol. Instead, create a health endpoint in your app that performs a database query and returns 200 if it succeeds. Monitor that endpoint to track database availability.

### Will monitoring keep my free Atlas cluster from pausing?

Regular queries from a monitored health endpoint count as activity, which can help prevent pausing. But this isn't guaranteed — MongoDB may change inactivity behavior. For production, use a paid tier with no pausing.

### How do I detect Atlas connection limit issues?

Connection exhaustion causes queries to fail or queue. A health endpoint that runs a real query will return errors or time out when connections are maxed. Monitor that endpoint and you'll catch connection issues as they happen.

### How is this different from status.mongodb.com?

MongoDB's status page reports platform-wide Atlas incidents. Your monitor checks YOUR specific cluster through your app. Connection limits, cluster pausing, slow queries, and configuration issues are specific to your deployment and won't appear on the platform status page.