Question

Regarding MYSQL database connection limits, How long does 1 connection last?

I am trying to work out how much RAM I need for a MYSQL database based off the 75 simultaneous connections per 1GB ram rule.

If one connection was made to a MYSQL database how long would it be classed as connected?

Is it that as soon as the database has returned the response then it is no longer connected or is there a time limit, for example if the database was queried once then would it still be connected after after a certain amount of time which would contribute to the simultaneous connections limit.

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Hello,

This would really depend on a few things on your side:

  • How much data you have in your database.
  • The complexity of your queries
  • The indexes that you’ve added

With those things in mind, the timing would depend on each individual application.

The best way to test this with your own data and your own website/app by running a load test:

https://www.digitalocean.com/community/tutorials/an-introduction-to-load-testing

That way you will be able to see how many concurrent connections your website is able to handle with your current server resources and then you will be able to make an informed decision based on the results.

Hope that this helps.

Best,

Bobby