NAME

       pmdanutcracker - NutCracker performance metrics domain agent (PMDA)

DESCRIPTION

       This  PMDA  extracts  performance  data  from NutCracker (or TwemProxy), a fast and lightweight proxy for
       memcached and Redis protocol.

INSTALLATION

       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, the following must be done 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.

FILES

       $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

PCP ENVIRONMENT

       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).

SEE ALSO

       PCPIntro(1), pmcd(1), pmdamemcache(1) and pmdaredis(1).

Performance Co-Pilot                                   PCP                                     PMDANUTCRACKER(1)