Scale an Oracle SOA Suite on Marketplace Instance Cluster Out or In
Scale an Oracle SOA Suite on Marketplace instance cluster out or in to add or remove nodes in response to changes in the load on the cluster. A node is a virtual machine (VM) running a Managed Server instance that is a member of a cluster.
Determine what you need to scale from metrics associated with the instance. For example, if response times are long, consider scaling out the cluster. If heap usage is high, consider scaling up the nodes in the cluster, as described in Scale an Oracle SOA Suite on Marketplace Instance Up or Down.
Notes:
- A scale out or in operation does not need down time and servers on the nodes in the Oracle SOA Cloud Service cluster are available during the scale operation.
-
When you scale out, Oracle SOA Suite on Marketplace creates a new VM running an Oracle WebLogic Server Managed Server instance. When you scale in, Oracle SOA Suite on Marketplace removes an Oracle WebLogic Server Managed Server instance and the VM that it is running on.
- Scale out and in operations support the addition and deletion of Managed Servers one node at a time.
- On Oracle Weblogic Server, every node of the cluster will be associated with an index starting from 1.
- During scale out, this index is incremented and a new node or Managed Server will be added with new index.
- During scale in, the Managed Server with the highest index in the cluster will be deleted.