[_el1s7]

  > 30 MySQL databases (248 GB of data)
  > 34 Nginx virtual hosts across multiple domains
  > GitLab EE (42 GB backup)
  > Neo4J Graph DB (30 GB graph database)
  > Supervisor managing dozens of background workers
  > Gearman job queue
  > Several live mobile apps serving hundreds of thousands of users

He's doing all of that on a single server?!

I'm not against vertical scaling and stuff, but 30 db instances in one server is just crazy.

[vb-8448]

It's an average of 8GB per database, I guess he serves multiple clients and decided to "segregate" each client on its instance. If it's acceptable for the business it's nothing wrong with his setup.

[_el1s7]

> Several live mobile apps serving hundreds of thousands of users

It seems like he's having a database for each app.

[vb-8448]

Could be, but this doesn't change my statement: if it's acceptable from the business standpoint there is nothing wrong with this setup.

[leetrout]

> 30 db instances

They didn't say that and the article didn't allude to that. 1 instance with 30 databases.

[_el1s7]

Ah yes that's probably true, but still having 30 apps in a single db instance doesn't seem better...