WSO2 Carbon version 4.0.0 onwards supports deployment models that consist of 'worker' nodes and 'manager' nodes. A worker node serves requests received by clients, whereas a manager node deploys and configures artifacts (web applications, services, proxy services, etc.).
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Since all WSO2 products are built on the cluster-enabled Carbon platform, you can cluster most WSO2 products in the same way, depending on which deployment pattern you use. The process of separating the worker and manager nodes depends on the worker/manager clustering pattern you choose. You can select one of the following patterns based on your load and the targeted expenditure.
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Your configuration changes depending on which clustering deployment pattern you choose. Although we use WSO2 API Manager (APIM) in the examples, the concepts apply equally to other WSO2 products as well. |
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This pattern has two manager nodes in one sub-domain and two worker nodes in a separate sub-domain. The manager and worker sub-domains are part of a single WSO2 product cluster domain. Both sub-domains use their own load balancer while existing within the same cluster. Multiple load balancers result in several unique configuration steps, so please ensure that you follow the relevant steps carefully. This pattern is similar to deployment pattern 2. However, the application/modification load (or any other administrative load) might be high, so there is a dedicated load balancer for the manager cluster to prevent this load from affecting the load of the worker cluster.
