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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | DESCRIPTION | INSTALLATION | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PMDADBPING(1) General Commands Manual PMDADBPING(1)
pmdadbping - database response time and availability PMDA
pmdadbping is a database response time measurement PMDA.
pmdadbping runs dbprobe(1), and exports the performance
measurements it makes available as PCP metrics.
dbprobe(1) should be configured to use the type of DBI appropriate
for the local database, which includes: RDBMS flavour,
user/password, delay between "ping" requests, and the SQL
statement to use.
Configure dbprobe(1) - it uses a configuration file from (in this
order):
• /etc/pcpdbi.conf
• $PCP_PMDAS_DIR/dbping/dbprobe.conf
This file can contain overridden values (Perl code) for the
settings listed at the start of dbprobe.pl, namely:
• database name (see DBI(3) for details)
• database user name
• database pass word
• SQL statement to measure (probe)
• delay between probes
Once this is setup, you can access the names and values for the
dbping performance metrics by doing the following as root:
# cd $PCP_PMDAS_DIR/dbping
# ./Install
To uninstall, the following must be done as root:
# cd $PCP_PMDAS_DIR/dbping
# ./Remove
pmdadbping 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_PMDAS_DIR/dbping/dbprobe.conf
probe configuration file for dbprobe(1), used indirectly by
pmdadbping
$PCP_PMDAS_DIR/dbping/Install
installation script for the pmdadbping agent
$PCP_PMDAS_DIR/dbping/Remove
undo installation script for the pmdadbping agent
$PCP_LOG_DIR/pmcd/dbping.log
default log file for error messages from pmdadbping
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), dbprobe(1) and DBI(3).
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 [email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2025-08-11.
(At that time, the date of the most recent commit that was found
in the repository was 2025-08-11.) 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 protected]
Performance Co-Pilot PCP PMDADBPING(1)
Pages that refer to this page: dbprobe(1), pmdamysql(1), pmdaoracle(1)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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