Scaling an Oracle Java Cloud Service Instance
(Doc ID 2394711.1)
Last updated on JULY 06, 2020
Applies to:Java Cloud Service - Version N/A and later
Information in this document applies to any platform.
How to scale a cluster and a node in an Oracle Java Cloud Service instance. Scaling lets you add or remove resources on demand to quickly respond to changes in load on an Oracle Java Cloud Service instance. Scaling a cluster is the process of adjusting the cluster size by adding a node to the cluster ("scaling out") or by deleting a node from the cluster ("scaling in"). Scaling a node is the process of adding block storage to the node or changing the current shape of the node by using a larger shape ("scaling up") or a smaller shape ("scaling down").
Demands on an Oracle Java Cloud Service instance might require that you expand—or "scale out"—the existing cluster by adding a node (a virtual machine running a Managed Server instance). When those demands are met and no longer exist, you reduce the overhead on your cluster by removing the node you added, in other words you "scale in" the cluster. You can also scale a node (often referred to as vertical scaling) by altering its compute shape or adding block storage when it's running low of that resource. Note that Oracle Java Cloud Service does not support scaling the load balancer node, scaling the Coherence data tier nodes, or removing block storage from a node.
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