Native method implemented in C which provides an interface
to the lower-level RRD functions
WARNING: The RRD C api (rrd_update(), rrd_create(), etc...) relies on
getopt() & therefore is not thread safe.
Writes the specified message to the servlet log file, usually an event
log, if the logger is set to a verbosity level equal to or higher than
the specified value for this message.
Writes the specified message and exception to the servlet log file,
usually an event log, if the logger is set to a verbosity level equal
to or higher than the specified value for this message.