System Monitor loggers

The System Monitor tool uses its own Apache Log4j 2.17.1 loggers, namely a thread dump logger and a database statistics logger.

By default, System Monitor logs are enabled and the log files roll over when their size exceeds 100MB or when a System Monitor event is triggered. However, you can configure the size which triggers the rollover process by modifying the value of the appender.appenderFordbStatsLogger.policies.size.size or of the appender.appenderForthreadDumpLogger.policies.size.size properties in the general.properties file.
System Monitor collects the following logs on a regular basis:
  • JVM thread dump – every time it runs, System Monitor logs a new thread dump entry in json format to threadDumpLogger.
  • Database statistics (spGetBlockedSessions) – every time it runs, System Monitor logs a new database statistics entry in JSON format to dbStatsLogger.