Scaling
the Data Grid Cluster of an Oracle Java Cloud Service Instance
Before You Begin
This 15-minute tutorial shows you how to add and remove capacity for the data grid cluster of an Oracle Java Cloud Service instance.
Background
This tutorial is a simple example of scaling a service instance
created with a data grid cluster, where the values are 1
for the cluster size and managed servers per node. The scale-out
operation adds one node with one server. The scale-in operation
removes one node with one server.
What Do You Need?
- Subscription to Oracle Java Cloud Service
- Java Administrator role
- Oracle Java Cloud Service instance running on Oracle WebLogic Server, Enterprise Edition with Oracle Coherence, Enterprise Edition. (See Creating a Custom Oracle Java Cloud Service Instance)
Scale
Out the Data Grid Cluster
- Sign in to Oracle Cloud at https://cloud.oracle.com/en_US/sign-in.
- From the My Services dashboard, click Navigation
menu
,
expand Services, and select Java. - From the Oracle Java Cloud Service console, click the name
of your service instance.
Description of the illustration instance_name.png - On the Overview page, click Manage this cluster
for the data grid
cluster and select Scale Out.
Description of the illustration data_tier.png - In the Scale Out confirmation dialog box, click Scale Out.
Monitor
the Scale-Out Operation
- On the Overview page, locate the In-Progress
Operation Messages section and verify that the Scale
Out In Progress operation status is Running.
Description of the illustration in_progress_message.png - Periodically click Refresh
and wait until the Scale Out In
Progress message no longer appears. - Locate the Data Grid Cluster section and
verify that a node was added.
Description of the illustration node_added.png
Scale
In the Data Grid Cluster
- On the Overview page, click Manage this cluster for the data grid
cluster and select Remove Node.
Description of the illustration remove_node.png - In the Remove Node confirmation dialog box, click Remove Node.
Monitor
the Scale-In Operation
- On the Overview page, locate the In-Progress
Operation Messages section and verify that the Scale
In In Progress operation status is Running.
Description of the illustration scale_in_in_progress.png - Periodically click Refresh and wait until the Scale In In
Progress message no longer appears.
- Locate the Data Grid Cluster section and
verify that a node was removed.
Description of the illustration node_removed.png
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to Learn More?