How do we handle vertically scaling mongodb deployment

MongoDB Percona Operator for MongoDB
1

Hi

im curious how people manage vertically scaling their percona MongoDB deployments we have a sharded replicated mongodb cluster with resources limits and requests set.

    resources: 
      limits:
        cpu: 8
        memory: 8Gi
      requests:
        cpu: 300m
        memory: 500M

The workload can be quite dynamic and im curious if there is some way to auto adjust the requests/limits based on the workload.

2

Hi, I hope you use our Percona Operator for MongoDB. If so, there are multiple components that the Operator deploys and manages: MongoDB replica set instances, mongos and config server instances, etc. To add or reduce CPU or Memory, you need to edit the corresponding sections in the Custom Resource - as you showed in the sample CR code.

We follow the structure for requests and limits that Kubernetes provides .

To add more resources to your MongoDB replica set instances, edit the following section in the Custom Resource:

spec:
  replsets:
    resources:
      requests: 
        memory: 4G
        cpu: 2
      limits:
        memory: 4G
        cpu: 2

Use our reference documentation for the Custom Resource options for more details about other components.