User Guide

Configuring Load-Balancing Metrics 343
• CCRTTPercent
CCRTTPercent represents the percentage of the calculated average
ROUND_TRIP_TIME that the probe agent should apply to the load metric supplied
by
CCLOADVALUE.
CCRTTPercent is the second variable that you might change in
getsimpleload.jsp to customize your server’s load metrics. It acts as a tuning
knob to determine how much external influence on server performance should
be calculated into the server's overall load value.
For example, increase
CCRTTPercent to apply a greater weighting to the
ROUND_TRIP_TIME metric in the overall load calculations. The default value of
CCRTTPercent is 0 (disabled). If you change the load type to ROUND_TRIP_TIME,
then the default value of
CCRTTPercent is 100, which gives ROUND_TRIP_TIME the
maximum weighting.
Troubleshooting the load-balancing metrics
If you make changes to the getsimpleload.jsp page while the ColdFusion server is
running you must reload the page for your changes to take effect.
If ClusterCATS gets an exception every time it processes getsimpleload.jsp, you
might have installed ClusterCATS before installing ColdFusion. In this case, verify
that the following is true:
• ColdFusionMetricThread.class file is located in the /ColdFusion/lib/ext
• The virtual directory /btauxdir is configured on your Web server. (This was
created during installation but you might have removed it.)