Create a Cache Cluster and Cache Instance

This article will guide you through the process of creating a Solace Cache Cluster and Cache Instance.

A Cache Cluster is a collection of one or more Cache Instances that subscribe to exactly the same topics. Cache Instances are grouped together in a Cache Cluster for the purpose of fault tolerance and load balancing. As published messages are received, the event broker message bus sends these live data messages to the Cache Instances in the Cache Cluster. This enables client cache requests to be served by any of Cache Instances in the Cache Cluster.

Before creating the Cache Cluster, you must establish a Solace Manager connection. To learn how, click on Create Remote Solace Manager Connection.

Create a Solace Cache Cluster 

You can create a Solace Cache Cluster by following these steps:

1. Open the Solace Cache Cluster viewlet, click the Add button  . 
2. The Select Object Path window will open. Specify the Workgroup server, Node, Broker, Message VPN and Distributed Cache then click Select path. To learn how to create an Distributed Cache, refer to Create a Distributed Cache.
   By default, all available Workgroup servers, Nodes, Brokers, Message VPNs and Distributed Caches are selected. If you want to limit the selection, you must explicitly choose which ones to include.
3. The Solace Cache Cluster Create Window will open. Enter the Cache Cluster Name (required) and populate other needed details.
   
4. Click on the Advanced slide at the bottom left to view more advanced options. 
5. click Ok to create the cache cluster immediately. Alternatively, click Schedule to create it at a future time (see Scheduling for details).
6. Now, go to the Cache Cluster viewlet to see the newly added object. If you can't find it, refresh the viewlet using the Refresh icon. 

Create a Solace Cache Instance

A Cache Instance is a single Cache process that belongs to a single Cache Cluster. At least one Cache Instance is required for a Cache Cluster, and maximum up to 16 can be used. Cache Instances listen for and cache live data messages that match the topic subscriptions configured for their parent Cache Cluster.

Before creating the Cache Instance, you must establish a Solace Manager connection. To learn how, click on Create Remote Solace Manager Connection.

You can create a Cache Instance by following these steps:

1. Open the Solace Cache Instance viewlet, click the Add button  . 
2. The Select Object Path window will open. Specify the Workgroup server, Node, Broker, Message VPN, Distributed Cache and Cache Cluster then click Select path. Click here to learn how to create a Distributed Cache and Cache Cluster.
   By default, all available Workgroup servers, Nodes, Brokers, Message VPNs, Distributed Caches and Cache Clusters are selected. If you want to limit the selection, you must explicitly choose which ones to include.
3. The Solace Cache Instance Create Window will open. Enter the Cache Instance Name (required) and Enable the options with False or True from dropdown.
   
4. Click Ok to create the Cache Instance immediately. Alternatively, click Schedule to create it at a future time (see Scheduling for details).
5. Now, go to the Cache Instance viewlet to see the newly added object. If you can't find it, refresh the viewlet using the Refresh icon.