PMDASUMMARY(1) General Commands Manual PMDASUMMARY(1)
pmdasummary - summary performance metrics domain agent (PMDA)
$PCP_PMDAS_DIR/summary/pmdasummary [-d domain] [-h helpfile] [-l logfile] [-U username] pmie-command-line
pmdasummary is a Performance Metrics Domain Agent (PMDA) which derives performance metrics values from values made available by other PMDAs. pmdasummary consists of two processes: pmie process The inference engine for performance values pmie(1) is used to periodically sample values for the base metrics and compute the derived values. This process is launched with the given pmie-command-line arguments by the main process, described below. main process The main process reads and buffers the values computed by pmie(1) and makes them available to the performance metrics collector daemon pmcd(1). A brief description of the pmdasummary command line options follows: -d It is absolutely crucial that the performance metrics domain number specified here is unique and consistent. That is, domain should be different for every PMDA on the one host, and the same domain number should be used for the same PMDA on all hosts. -h This option specifies an alternative help text file helpfile for describing the metrics that pmdasummary represents. -l Location of the log file. By default, a log file named summary.log is written in the current directory of pmcd(1) when pmdasummary is started, i.e. $PCP_LOG_DIR/pmcd. If the log file cannot be created or is not writable, output is written to the standard error instead. -U User account under which to run the agent. The default is the unprivileged "pcp" account in current versions of PCP, but in older versions the superuser account ("root") was used by default.
If you want access to the names, help text and values for the summary performance metrics, do the following as root: # cd $PCP_PMDAS_DIR/summary # ./Install If you want to undo the installation, do the following as root: # cd $PCP_PMDAS_DIR/summary # ./Remove pmdasummary is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is installed or removed.
$PCP_PMCDCONF_PATH command line options used to launch pmdasummary $PCP_PMDAS_DIR/summary/expr.pmie default pmie(1) expressions defining the summary metrics $PCP_PMDAS_DIR/summary/help default help text for the summary metrics $PCP_PMDAS_DIR/summary/Install installation script for the pmdasummary agent $PCP_PMDAS_DIR/summary/Remove undo installation script for the pmdasummary agent $PCP_LOG_DIR/pmcd/summary.log default log file for error messages and other information from pmdasummary
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 pcp.conf(5).
PCPIntro(1), pmcd(1) and pmie(1).
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 firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2021-04-01.) 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 email@example.com Performance Co-Pilot PCP PMDASUMMARY(1)
Pages that refer to this page: pmie(1)