1PMDAMEMCACHE(1)              Performance Co-Pilot              PMDAMEMCACHE(1)
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NAME

6       pmdamemcache - memcache performance metrics domain agent (PMDA)
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DESCRIPTION

9       This PMDA extracts performance data from memcached, a distributed
10       memory caching daemon commonly used to improve web serving performance.
11       A farm of memcached processes over multiple servers can be utilised by
12       a single web application, increasing the total available object cache
13       size, and decreasing the database load associated with smaller cache
14       sizes.  This system is described in detail at
15       http://www.danga.com/memcached.
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INSTALLATION

18       Configure pmdamemcache to extract the values from set of hosts used in
19       the memcache farm.  These hosts can be listed in the
20       $PCP_PMDAS_DIR/memcache/memcache.conf file, in the format (i.e.  Perl
21       array) described at the top of pmdamemcache.pl.  A custom refresh rate
22       can also be configured using this mechanism.
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24               # cd $PCP_PMDAS_DIR/memcache
25               # [ edit memcache.conf ]
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27       Once this is setup, you can access the names and values for the
28       memcache performance metrics by doing the following as root:
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30               # cd $PCP_PMDAS_DIR/memcache
31               # ./Install
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33       If you want to undo the installation, do the following as root:
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35               # cd $PCP_PMDAS_DIR/memcache
36               # ./Remove
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38       pmdamemcache is launched by pmcd(1) and should never be executed
39       directly.  The Install and Remove scripts notify pmcd(1) when the agent
40       is installed or removed.
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FILES

43       $PCP_PMDAS_DIR/memcache/memcache.conf
44           configuration file listing monitored memcache instances
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46       $PCP_PMDAS_DIR/memcache/Install
47           installation script for the pmdamemcache agent
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49       $PCP_PMDAS_DIR/memcache/Remove
50           undo installation script for the pmdamemcache agent
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52       $PCP_LOG_DIR/pmcd/memcache.log
53           default log file for error messages from pmdamemcache
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SEE ALSO

56       pmcd(1) and memcached(1).
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603.3.3                        Performance Co-Pilot              PMDAMEMCACHE(1)
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