In openshift-cluster-csi-drivers namespace, csi-driver-node deployment , csi-node-registrar container is logging grpc connection check to /registration/csi.... every 10 seconds and this is filling up our Elasticsearch space fast. 

For example, for a cluster in ARO, these logs are being printed out to the console every 10 seconds.  

I0730 04:27:23.729346 1 node_register.go:133] Attempting to open a gRPC connection with: "/registration/disk.csi.azure.com-reg.sock"
I0730 04:27:23.729931 1 node_register.go:141] Calling node registrar to check if it still responds
I0730 04:27:23.730243 1 main.go:90] Received GetInfo call: &InfoRequest{}
I0730 04:27:33.729491 1 node_register.go:133] Attempting to open a gRPC connection with: "/registration/disk.csi.azure.com-reg.sock"
I0730 04:27:33.730082 1 node_register.go:141] Calling node registrar to check if it still responds
I0730 04:27:33.730380 1 main.go:90] Received GetInfo call: &InfoRequest{}
I0730 04:27:43.730173 1 node_register.go:133] Attempting to open a gRPC connection with: "/registration/disk.csi.azure.com-reg.sock"
I0730 04:27:43.730756 1 node_register.go:141] Calling node registrar to check if it still responds
I0730 04:27:43.731093 1 main.go:90] Received GetInfo call: &InfoRequest{}
I0730 04:27:53.729913 1 node_register.go:133] Attempting to open a gRPC connection with: "/registration/disk.csi.azure.com-reg.sock"
I0730 04:27:53.730464 1 node_register.go:141] Calling node registrar to check if it still responds


Same thing happens in our on-prem VMware clusters. For example, here are the logs for this one:

I0730 04:08:47.182096 1 node_register.go:133] Attempting to open a gRPC connection with: "/registration/csi.vsphere.vmware.com-reg.sock"
I0730 04:08:47.183085 1 node_register.go:141] Calling node registrar to check if it still responds
I0730 04:08:47.183359 1 main.go:90] Received GetInfo call: &InfoRequest{}
I0730 04:08:57.182859 1 node_register.go:133] Attempting to open a gRPC connection with: "/registration/csi.vsphere.vmware.com-reg.sock"
I0730 04:08:57.183469 1 node_register.go:141] Calling node registrar to check if it still responds
I0730 04:08:57.184060 1 main.go:90] Received GetInfo call: &InfoRequest{}


So this is happening all across all clusters and we need to reduce the frequency of these logs and find the root cause of this.In csi-driver-node deployment, csi-node-registrar container logging grpc connection check to /registration/csi.... every 10 seconds 

Impact:

Elasticsearch is deployed as a SAAS service and these logs are filling up the space fast which increases the cost to the customer.
   

4.16.42    

    1.
    2.
    3.
    

Millions of informational logs are being generated for this namespace (openshift-cluster-csi-drivers)

No more or reduced logging of informational messages.