How to Self-Host MongoDB on a Linux VPS (RAM, WiredTiger & Backups)

MongoDB hosting in India comes down to three routes: mongod on a VPS you control, a managed cluster billed hourly in USD, or a host-managed database server on a monthly INR plan. There is no shared-hosting MongoDB — the database is a long-running process with its own port, memory profile and disk pattern, so it needs a machine where you can edit mongod.conf and open port 27017 to the right address only.

A team without a database person should price Atlas first. A team with an app already on a VPS usually keeps the database beside it and saves the egress.

Production MongoDB should be a replica set: three members give a majority for elections, while two cannot elect a primary when one is down. Even a single machine's budget can run all three members, though that protects against process failure, not the machine dying.

# /etc/mongod.conf on each node
replication:
  replSetName: rs0
net:
  bindIp: 127.0.0.1,10.0.0.11

rs.initiate({_id:"rs0",members:[
  {_id:0,host:"10.0.0.11:27017",priority:2},
  {_id:1,host:"10.0.0.12:27017"},
  {_id:2,host:"10.0.0.13:27017"}]})

Wait for rs.status() to show one PRIMARY and two SECONDARY members; the member with priority 2 becomes primary. Point the application at the set, not one IP: mongodb://app:pass@10.0.0.11:27017,10.0.0.12:27017/app?replicaSet=rs0. Test failover by stopping the primary — the app should reconnect to the new primary within the driver's timeout. For real machine-failure cover, put the members on separate hosts.

A replica set is not a backup: deleting the wrong collection replicates to every member in seconds, so keep a copy the database cannot reach.

mongodump --uri="mongodb://siteAdmin@10.0.0.11:27017/?authSource=admin" \
  --gzip --archive=/backup/app-$(date +%F).gz

mongorestore --gzip --archive=/backup/app-2026-10-01.gz --nsInclude='app.*'

• Add --oplog when you need point-in-time recovery on a replica set; it captures writes made during the dump.
• Keep a provider disk snapshot as well, so a full restore does not depend on replaying a dump.
• Restore into a scratch instance once a month — an untested backup is only a file.

Three copies, two media, one off the server is the habit. WebJi® server backup solutions start at ₹1,300 a month for the Backup.Help app with 200 GB, before 18% GST, if you want the copy kept off the VPS.

Atlas is priced in USD per hour and includes the operations you would otherwise do yourself, so the honest comparison is against what the same working set costs on a VPS. The Atlas figures below were read on 29 October 2026 and are not a like-for-like spec match with a VPS.

The free tier is for learning, not production: 512 MB with shared CPU will not hold a working set. Past that, compare Atlas M30 against a 32 GB VPS, because both can hold a mid-size working set — Atlas wins on operations, the VPS wins on INR billing and control. The MySQL vs MongoDB comparison covers the database choice itself, and VPS hosting lists the base plans.