PMCD_WAIT(1)						      General Commands Manual						      PMCD_WAIT(1)

NAME

       pmcd_wait - wait for PMCD to accept client connections

SYNOPSIS

       $PCP_BINADM_DIR/pmcd_wait [-h host] [-t interval] [-v]

DESCRIPTION

       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 returned.

       If an error or timeout occurs, then a non-zero exit status is returned as described below.

       The other options are as follows:

       -v     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.

PCP ENVIRONMENT

       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 configura-
       tion file, as described in pcp.conf(5).

SEE ALSO

       PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).

DIAGNOSTICS

       Error messages will be output to stderr only if the verbose mode is on.

       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  con-
	      nection, 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.

Performance Co-Pilot							PCP							      PMCD_WAIT(1)