Recommended Instance Family / Type

MongoDB Percona Operator for MongoDB
1

We have been using the m5 instance type to run our mongodb replicaset. We are in a position to be able to change this now.

I’m curious if percona reccomends a particular instnace type to run mongodb and the reasons for it.

I came across this video today which looks interesting - https://www.youtube.com/watch?v=ZZ2tx8iL3P4

He is using I3en instance type - Amazon EC2 I3en Instances - dense SSD storage instances

Does anyone have any thoughts?

2

Instance types, CPU and RAM configuration are all very specific to your workloads.

I can just provide some regular guidance:

  1. Storing indexes and data in RAM would definately give you some performance boost for almost any database. With this in mind look at the instances with higher memory - R family on AWS is a usual choice.
  2. Keeping all the data in RAM is not an option for decent dataset sizes. That is why fast storage is important. That is where you have various options on AWS:
  • Use fast disks (like IO2). They will get expensive very quickly, as you would leverage provisioned IOPs.
  • Use built-in NVME SSDs. There are multiple instance types that provide that on AWS. Look at Storage Optimized instances or instances with “D” prefix (ex. r6d).

Also have a look at the following blog posts:

  1. Percona Operator for MongoDB with Local Storage and OpenEBS
  2. Reduce Your Cloud Costs With Percona Kubernetes Operators

If you need deeper assessment of your environment - please reach out to our teams: Sales & General Inquiries - Percona