Hyperic HQ 4.x Documentation : ui-Monitor.Group.Extrapolate
This page last changed on Jul 20, 2009 by mmcgarry.
Extrapolating Metrics for a Group*Available only in HQ Enterprise This page allows you to predict future values of a metric for a the members of group based on historical metrics. The Metric Data Extrapolation plugin is available on the Views tab when a group is selected. Although this function is available for any group, whether compatible or mixed, metric projections are most meaningful for compatible groups. The extrapolation method is a simple linear regression using the Apache Commons Math package. The historical metric data for a group is used to calculate a slope, which is used to predict future values. For more information on the simple linear regression algorithm, see http://commons.apache.org/math/userguide/stat.html. Feedback is welcome. Click Add Comment at the bottom of the page. To extrapolate a metric for a members of a group:*
Understanding Extrapolation ChartsEach chart has the same scale, to better show differences between the resources, and ease analysis. This is different from other HQ charts which are scaled independently. The heading for each chart shows:
Extrapolated values are represented by the orange triangle that appears between "now" and the end of the projection range on the timeline. Return to HQ Portal Reference. |
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Document generated by Confluence on Apr 20, 2010 15:01 |