Server System Variables • syseventlog.facility Command-Line Format --syseventlog.facility=value Introduced 8.0.13 System Variable syseventlog.facility Scope Global Dynamic Yes SET_VAR  Hint Applies No Type String Default Value daemon Command-Line Format --syseventlog.include-pid[={OFF|ON}] Introduced 8.0.13 System Variable syseventlog.include_pid Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Boolean Default Value ON Command-Line Format --syseventlog.tag=tag Introduced 8.0.13 System Variable syseventlog.tag Scope Global Dynamic Yes SET_VAR  Hint Applies No Type String 896 • syseventlog.tag This variable does not exist on Windows. Whether to include the server process ID in each line of error log output written to  syslog . This variable is unavailable unless the  log_sink_syseventlog  error log component is installed. See Section 5.4.2.8, “Error Logging to the System Log” . This variable does not exist on Windows. The permitted values can vary per operating system; consult your system  syslog  documentation. The facility for error log output written to  syslog  (what type of program is sending the message). This variable is unavailable unless the  log_sink_syseventlog  error log component is installed. See Section 5.4.2.8, “Error Logging to the System Log” . • syseventlog.include_pid