The syslog-ng OSE application collects various statistics and measures different metrics about the messages it receives and delivers. These metrics are collected into different counters, depending on the configuration of syslog-ng OSE. The stats-level() global option determines exactly which statistics syslog-ng OSE collects. You can access these statistics and metrics using the following methods.

Legacy: Unstructured, bulk methods

  • Using the internal() source.

  • Using the syslog-ng-ctl stats command.

    For further information about using syslog-ng-ctl commands, see The syslog-ng OSE manual pages.

  • Use the socat application:

      echo STATS \| socat -vv UNIX-CONNECT:/opt/syslog-ng/var/run/syslog-ng.ctl -

  • If you have an OpenBSD-style netcat application installed, use the

      echo STATS \| nc -U /opt/syslog-ng/var/run/syslog-ng.ctl

    command. Note that the netcat included in most Linux distributions is a GNU-style version that is not suitable to query the statistics of syslog-ng.

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