How to update the optimization parameters?

The platform supports filling in optimization parameters in Ceph configuration file format when creating a storage cluster, but does not provide a way to modify them through the interface after creation. You need to manually update them according to the following steps.

Procedure

1. First, update the storage optimization parameters to the Configmap named rook-config-override-user, replace the .data.config field, and set the value of the .metadata.annotations[rook.cpaas.io/need-sync] field to true. For example:

   apiVersion: v1
   data:
     config: |
       [global]
       mon_memory_target=1073741824
       mds_cache_memory_limit=2147483648
       osd_memory_target=4147483648
   kind: ConfigMap
   metadata:
     annotations:
       cpaas.io/creator: admin
       cpaas.io/updated-at: "2022-03-01T12:24:04Z"
       rook.cpaas.io/need-sync: "true"
       rook.cpaas.io/sync-status: synced
     creationTimestamp: "2022-03-01T12:24:04Z"
     finalizers:
     - rook.cpaas.io/config-merge
     name: rook-config-override-user
     namespace: default
     resourceVersion: "38816864"
     uid: ce3a8f3e-6453-4bdd-bff0-e16cf7d5d5fa

2. Execute ceph tell [mon|osd|mgr|mds|rgw].* config set [key] [value] in the Pod of rook-ceph-tools to apply the configuration in real time.

3. To start the Pod of tools, edit the ClusterServiceVersion (CSV) under the rook-ceph namespace and set the replicas value of rook-ceph-tools in the Deployments section to 1.