Mailq PMDA
==========

This PMDA exports information about the sendmail(1) queue.

Metrics
=======

The file ./help contains descriptions for all of the metrics exported
by this PMDA.

Once the PMDA has been installed, the following command will list all
the available metrics and their explanatory "help" text:

	$ pminfo -fT mailq

Installation
============

 +  # cd /var/pcp/pmdas/mailq

 +  Check that there is no clash in the Performance Metrics Domain defined
    in ./domain.h and the other PMDAs currently in use (/var/pcp/config/pmcd/pmcd.conf).  If
    there is, edit ./domain.h to choose another domain number.

 +  Then simply use

	# ./Install

    and choose both the "collector" and "monitor" installation
    configuration options.

 +  Alternatively, to install just the Performance Metrics Name Space
    for the mailq metrics on the local system, but not the mailq PMDA
    (presumably because the local system is running PCP 1.x and you
    wish to connect to a remote system where PCP 2.0 and the mailq PMDA
    is running), make sure the Performance Metrics Domain defined in
    ./domain.h matches the domain chosen for the mailq PMDA on the
    remote system (check the second field in the corresponding line of
    the /var/pcp/config/pmcd/pmcd.conf file on the remote system), then

	# ./Install -N

De-installation
===============

 +  Simply use

	# cd /var/pcp/pmdas/mailq
	# ./Remove

Troubleshooting
===============

 +  After installing or restarting the agent, the PMCD log file 
    (/var/log/pcp/pmcd/pmcd.log) and the PMDA log file
    (/var/log/pcp/pmcd/mailq.log) should be checked for any warnings or
    errors.
