демон сборщика показателей производительности (performance metrics collector daemon)
Диагностика (Diagnostic)
If pmcd is already running the message "Error: OpenRequestSocket
bind: Address may already be in use" will appear. This may also
appear if pmcd was shutdown with an outstanding request from a
client. In this case, a request socket has been left in the
TIME_WAIT state and until the system closes it down (after some
timeout period) it will not be possible to run pmcd.
In addition to the standard PCP debugging flags, see pmdbg(1),
pmcd currently uses the options: appl0 for tracing I/O and
termination of agents, appl1 for tracing access control and appl2
for tracing the configuration file scanner and parser.
