Adding Cache Server(s) in Amazon EKS at Runtime

NCache allows you to add cache servers at runtime in your Elastic Kubernetes Cluster for scalability. You can add more servers either through the NCache management tools or NCache deployment inside the EKS cluster.

Amazon Elastic Kubernetes Service: Adding Cache Server(s) to deployment

The First step of adding cache servers is to update the replica count in the deployment. This can be done through the following ways:

• Manual Deployment
• Operator Deployment

1. Execute the following command in the AWS command line interface to increase the number of cache replicas in your deployment.

   kubectl scale --replicas=number_of_total_pods deployment ncachedeployment.yaml
   

2. You can also increase the replica count manually by modifying the ncachedeployment.yaml file. Do the following:

   • Open the ncachedeployment.yaml file and update the replicas number under the spec tag according to your requirement.

   • After the YAML file has been modified, run the following command in the AWS command line tool to apply the changes made to the deployment.

     kubectl apply -f [dir]/ncachedeployment.yaml
     

Adding Cache Server(s) to NCache cluster

You can add cache servers to your NCache cluster through the following ways:

1. Follow the provided steps to add cache servers through the NCache Management Center.

   • Access the NCache Management Center as showed earlier.
   • Follow the steps in Add Server Nodes once you have successfully accessed the manager.

2. To add cache servers through the NCache PowerShell tool, follow the steps provided in Adding Cache Servers through PowerShell.

After you have added the required server nodes to the cache cluster, you can view these changes from the NCache Management Center. You can also monitor the cluster and check its stats. See Monitor NCache Cluster and Clients for more details.

See Also

Create Cache Cluster in EKS
Monitor NCache Cluster and Clients in EKS
Removing Cache Servers in EKS at Runtime