1PMDANUTCRACKER(1)           General Commands Manual          PMDANUTCRACKER(1)
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NAME

6       pmdanutcracker - NutCracker performance metrics domain agent (PMDA)
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DESCRIPTION

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

13       Configure to export statistics via its stats  interface  (see  --stats-
14       port option to the nutcracker server).  The corresponding configuration
15       must  be  reflected  in  the  $PCP_PMDAS_DIR/nutcracker/nutcracker.conf
16       file.
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18           # cd $PCP_PMDAS_DIR/nutcracker
19           # [ edit nutcracker.conf ]
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21       Once  this  is  setup, you can access the names and values for the nut‐
22       cracker performance metrics by doing the following as root:
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24           # cd $PCP_PMDAS_DIR/nutcracker
25           # ./Install
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27       To uninstall, the following must be done as root:
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29           # cd $PCP_PMDAS_DIR/nutcracker
30           # ./Remove
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32       pmdanutcracker is launched by pmcd(1) and should never be executed  di‐
33       rectly. The Install and Remove scripts notify pmcd(1) when the agent is
34       installed or removed.
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FILES

37       $PCP_PMDAS_DIR/nutcracker/nutcracker.conf
38           mandatory configuration file listing monitored  memcache  or  Redis
39           instances
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41       $PCP_PMDAS_DIR/nutcracker/Install
42           installation script for the pmdanutcracker agent
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44       $PCP_PMDAS_DIR/nutcracker/Remove
45           undo installation script for the pmdanutcracker agent
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47       $PCP_LOG_DIR/pmcd/nutcracker.log
48           default log file for error messages from pmdanutcracker
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PCP ENVIRONMENT

51       Environment variables with the prefix PCP_ are used to parameterize the
52       file and directory names used by PCP. On each  installation,  the  file
53       /etc/pcp.conf  contains  the  local  values  for  these variables.  The
54       $PCP_CONF variable may be used to specify an alternative  configuration
55       file, as described in pcp.conf(5).
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SEE ALSO

58       PCPIntro(1), pmcd(1), pmdamemcache(1) and pmdaredis(1).
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62Performance Co-Pilot                  PCP                    PMDANUTCRACKER(1)
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