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NAME | DESCRIPTION | INSTALLATION | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
PMDANUTCRACKER(1) General Commands Manual PMDANUTCRACKER(1)
pmdanutcracker - NutCracker performance metrics domain agent (PMDA)
This PMDA extracts performance data from NutCracker (or TwemProxy), a
fast and lightweight proxy for memcached and Redis protocol.
Configure to export statistics via its stats interface (see --stats-
port option to the nutcracker server). The corresponding
configuration must be reflected in the
$PCP_PMDAS_DIR/nutcracker/nutcracker.conf file.
# cd $PCP_PMDAS_DIR/nutcracker
# [ edit nutcracker.conf ]
Once this is setup, you can access the names and values for the
nutcracker performance metrics by doing the following as root:
# cd $PCP_PMDAS_DIR/nutcracker
# ./Install
To uninstall, do the following as root:
# cd $PCP_PMDAS_DIR/nutcracker
# ./Remove
pmdanutcracker 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/nutcracker/nutcracker.conf
mandatory configuration file listing monitored memcache or Redis
instances
$PCP_PMDAS_DIR/nutcracker/Install
installation script for the pmdanutcracker agent
$PCP_PMDAS_DIR/nutcracker/Remove
undo installation script for the pmdanutcracker agent
$PCP_LOG_DIR/pmcd/nutcracker.log
default log file for error messages from pmdanutcracker
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).
pmcd(1), pmdamemcache(1) and pmdaredis(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
pcp@oss.sgi.com. This page was obtained from the project's upstream
Git repository ⟨git://git.pcp.io/pcp⟩ on 2017-07-05. 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 man-pages@man7.org
Performance Co-Pilot PCP PMDANUTCRACKER(1)