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  • February 17, 2016

WebLogic Server 12.2.1: Elastic Cluster Scaling

Guest Author

WebLogic Server 12.2.1 added support for the elastic scaling of dynamic clusters:

http://docs.oracle.com/middleware/1221/wls/ELAST/overview.htm#ELAST529

Elasticity allows you to configure elastic scaling for a dynamic cluster based on either of the following:

  • Manually adding or removing a running dynamic server instance from an
    active dynamic cluster. This is called on-demand scaling. You can
    perform on-demand scaling using the Fusion Middleware component of
    Enterprise Manager, the WebLogic Server Administration Console, or the
    WebLogic Scripting Tool (WLST).

  • Establishing policies that set the conditions under which a dynamic
    cluster should be scaled up or down and actions that define the scaling
    operations themselves. When the conditions defined in the scaling policy
    occur, the corresponding scaling action is triggered automatically.

To see this in action, a set of video demonstrations have been added to the youtube.com/OracleWebLogic channel that show the use of various elastic scaling options available.

WebLogic Server 12.2.1 Elastic Cluster Scaling with WLST
https://www.youtube.com/watch?v=6PHYfVd9Oh4
WebLogic Server 12.2.1 Elastic Cluster Scaling with WebLogic Console
https://www.youtube.com/watch?v=HkG0Uw14Dak
WebLogic Server 12.2.1 Automated Elastic Cluster Scaling
https://www.youtube.com/watch?v=6b7dySBC-mk

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