Provided by: pcp_4.3.1-1_amd64 bug


       pmdamemcache - memcached performance metrics domain agent (PMDA)


       This  PMDA  extracts  performance data from memcached, a distributed memory caching daemon
       commonly used to improve web serving performance.  A  farm  of  memcached  processes  over
       multiple  servers  can  be  utilised  by  a  single  web application, increasing the total
       available object cache size, and decreasing the  database  load  associated  with  smaller
       cache sizes.  This system is described in detail at


       Configure  pmdamemcache to extract the values from set of hosts used in the memcache farm.
       These hosts can be listed in the $PCP_PMDAS_DIR/memcache/memcache.conf file, in the format
       (i.e.   Perl  array)  described  at the top of  A custom refresh rate can
       also be configured using this mechanism.

             # cd $PCP_PMDAS_DIR/memcache
             # [ edit memcache.conf ]

       Once this is setup, you can access the names  and  values  for  the  memcache  performance
       metrics by doing the following as root:

             # cd $PCP_PMDAS_DIR/memcache
             # ./Install

       To uninstall, do the following as root:

             # cd $PCP_PMDAS_DIR/memcache
             # ./Remove

       pmdamemcache 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.


           optional configuration file listing monitored memcache instances

           installation script for the pmdamemcache agent

           undo installation script for the pmdamemcache agent

           default log file for error messages from pmdamemcache


       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).