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Usenet News PMDA
================
This PMDA is a sample, that illustrates how a simple PMDA might be
constructed using the Perl PMDA API.
Although the metrics supported are simple, the framework in the script
pmdanews is quite general, and could be re-used to implement other
PMDAs.
Metrics
=======
Once the PMDA has been installed, the following command will list all
the available metrics and their explanatory "help" text:
$ pminfo -fT news
Installation
============
+ # cd $PCP_PMDAS_DIR/news
+ Check that there is no clash in the Performance Metrics Domain
defined in ./domain.h and the other PMDAs currently in use (see
$PCP_PMCDCONF_PATH). 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.
+ By default the script pmdanews operates on a small test-case copy a
news "active" file, installed from here into
$PCP_PMDAS_DIR/news/active. If you wish to use a more realistic base
of Usenet data, edit pmdanews.pl to make it use your "live active"
groups, then
# ./Install.
De-installation
===============
+ Simply use
# cd $PCP_PMDAS_DIR/news
# ./Remove
Troubleshooting
===============
+ After installing or restarting the agent, the PMCD log file
($PCP_LOG_DIR/pmcd/pmcd.log) and the PMDA log file
($PCP_LOG_DIR/pmcd/news.log) should be checked for any warnings
or errors.
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