On each collector server and MoM (Manager of Managers) servers, the default logs directory is:

<em install root>/logs/

On each agent (typically JVMs being monitored by Introscope), the following file will contain the agent logs.

/path/to/IntroscopeAgent.profile

In the IntroscopeAgent.profile file, there are two main agent log files, autoprobe.log and IntroscopeAgent.log.

introscope.autoprobe.logfile=/path/to/autoprobe.log

log4j.appender.logfile.File=/path/to/IntroscopeAgent.log