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Simple PMDA =========== This PMDA is an example, that illustrates how a simple PMDA might be constructed. Although the metrics supported as simple, the framework is quite general, and could be extended to implement a much more complex PMDA. Note: This PMDA may be remade from source and hence requires a C compiler to be installed. Uses of make(1) may fail (without removing or clobbering files) if the C compiler cannot be found. This is most likely to happen when running the PMDA ./Install script. The only remedial action is to install the C compiler, or hand-craft changes to the Makefile. 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 simple Installation ============ + # cd $PCP_PMDAS_DIR/simple + 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. You will be prompted to choose either a daemon implementation or a DSO implementation of the PMDA, and in the case of the daemon variant to select an IPC method -- everything else is automated De-installation =============== + Simply use # cd $PCP_PMDAS_DIR/simple # ./Remove Troubleshooting =============== + After installing or restarting the agent, the PMCD log file ($PCP_LOG_DIR/pmcd/pmcd.log) and the PMDA log file ($PCP_LOG_DIR/pmcd/simple.log) should be checked for any warnings or errors.