Using JRun probes
87
6 Click Register to create the probe.
7 Close all open dialog boxes.
Icons for the monitor and probe appear under the Monitor Manager in the
ClusterCATS Explorer.
To add a new probe to an existing probe monitor:
1 In the ClusterCATS Explorer, select the cluster_name
> Monitor Manager >
monitor_name in the left pane.
2 Select
Monitor > Properties
.
Timeout (sec)
Enter a time to indicate how long ClusterCATS waits before a JRun
server failure is registered.
Do not set this value to less than 60 seconds, because ClusterCATS
may restart the JRun server inadvertently (due to network congestion,
for example), rather than detect an actual failure on the JRun server.
Frequency
(sec)
Enter a time to indicate how often the probe checks the JRun server.
Probes that restart web applications should be configured to run no
more frequently than the time it takes to stop and restart JRun. This is
highly site-specific, because it depends on system resources available
on servers and the volume of traffic at a site.
For probes that do not restart the web application, the frequency
depends on how long you can reasonably afford to have your web
application offline. A minimum frequency of 15 seconds is
recommended.
Return value
Enter 0 to make a probe succeed on a successful probing of the page.
Enter a non-zero number to make a probe succeed on a failure.
The default is 0. Only under rare circumstances would you change this
to a non-zero number.
Field
Description
Summary of Contents for COLDFUSION MX-CLUSTERCATS
Page 1: ...macromedia Using ClusterCATS...
Page 56: ...46 Chapter 3 Installing ClusterCATS...
Page 118: ...108 Chapter 4 Configuring Clusters...
Page 156: ...146 Index...
