pmcd_wait waits for the Performance Metrics Collector Daemon
(PMCD) to be running and accepting client connections.
Unless directed to another host by the -h option, pmcd_wait will
try to contact pmcd(1) on the local host.
pmcd_wait will timeout and abandon the attempt to connect to pmcd
after 60 seconds. This default timeout interval may be changed
using the -t option, where the interval argument follows the
syntax described in PCPIntro(1) and in the simplest form may be
an unsigned integer (the implied units in this case are seconds).
On successful connection to pmcd an exit status of zero is
If an error or timeout occurs, then a non-zero exit status is
returned as described below.
The available command line options are:
-h host, --host=host
Connect pmcd(1) on host, rather than the one on the default
-t timeout, --interval=timeout
Timeout after timeout seconds if not connected. The default
timeout value is 60 seconds.
This option turns the verbose mode on. With the verbose
mode off (which is the default), no output will be
generated. With verbose mode on, error messages will be
output on stderr.
Display usage message and exit.
Error messages will be output to stderr only if the verbose mode
The following exit status codes are returned:
0 pmcd_wait was able to successfully connect to pmcd within
the timeout period.
1 A usage error occurred, use -v for more details.
2 No connection was made in the timeout interval. This will
happen if pmcd is running but takes too long to complete
the client connection, or if pmcd is not running and all
connection attempts in the timeout interval failed with
the error ECONNREFUSED.
3 A UNIX error occurred, use -v for more details.
4 A PCP error occurred, use -v for more details.
Environment variables with the prefix PCP_ are used to
parameterize the file and directory names used by PCP. On each
installation, the file /etc/pcp.conf contains the local values
for these variables. The $PCP_CONF variable may be used to
specify an alternative configuration file, as described in
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at
⟨http://www.pcp.io/⟩. If you have a bug report for this manual
page, send it to email@example.com. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2021-08-27.
(At that time, the date of the most recent commit that was found
in the repository was 2021-08-27.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
Performance Co-Pilot PCP PMCD_WAIT(1)