OneSight Administrator Guide

Configuring Log File, Directory Monitors
monitor to a monitor group. Refer to Adding Monitors to a
Monitor Group in Chapter 4.
Configuring Log File, Directory Monitors
There are two types of monitors that can be configured:
Log File
Directory
Log File Monitors
You can set up a Log File monitor to determine if the log file
associated with a monitor group component, such as a web server,
has information in the error log that indicates a problem with your
monitor group. Additionally, some applications publish
performance data to a text log file, so the Log File Monitor also
allows you to specify Perl expressions for collecting performance
data from a log file entry.
Note: OneSight also includes profile monitors for IIS and Apache
web servers. These profile-based monitors use a set of preselected
metrics and allow you to apply the same settings to multiple
machines.
At specified time intervals, the Log File monitor checks the log file
and optionally checks for a particular content string within the log
file.
Note: After restarting OneSight, the Log File monitor does not look
at historical data.
Log file metrics can be configured in two operating modes:
One line at a time mode – each line read from the file is treated as
a single log file entry and is processed individually.
256 OneSight Administrator Guide