CentOS 7.0 - man page for pmnsadd (centos section 1)

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PMNSADD(1)									       PMNSADD(1)

NAME
       pmnsadd - add new names to the Performance Co-Pilot PMNS

SYNOPSIS
       $PCP_BINADM_DIR/pmnsadd [-d] [-n namespace] file

DESCRIPTION
       pmnsmerge(1)  performs  the  same  function as pmnsadd and is faster, more robust and more
       flexible. It is therefore recommended that pmnsmerge(1) be used instead.

       pmnsadd adds subtree(s) of new names into a Performance Metrics Name Space (PMNS), as used
       by the components of the Performance Co-Pilot (PCP).

       Normally  pmnsadd operates on the default Performance Metrics Namespace (PMNS), however if
       the -n option is specified an alternative namespace is used from the file namespace.

       The default PMNS is found in the file $PCP_VAR_DIR/pmns/root unless the environment  vari-
       able  PMNS_DEFAULT  is  set,  in which case the value is assumed to be the pathname to the
       file containing the default PMNS.

       The new names are specified in the file, arguments and conform  to  the	syntax	for  PMNS
       specifications,	see  pmns(5).	There is one PMNS subtree in each file, and the base PMNS
       pathname to the inserted subtree is identified by the first group named in each file, e.g.
       if the specifications begin

		 myagent.foo.stuff {
		     mumble	123:45:1
		     fumble	123:45:2
		 }

       then the new names will be added into the PMNS at the non-leaf position identified by mya-
       gent.foo.stuff, and following all other names with the prefix myagent.foo.

       The new names must be contained within a single subtree of  the	namespace.   If  disjoint
       subtrees  need to be added, these must be packaged into separate files and pmnsadd used on
       each, one at a time.

       All of the files defining the PMNS must be located within the directory that contains  the
       root of the PMNS, this would typically be $PCP_VAR_DIR/pmns for the default PMNS, and this
       would typically imply running pmnsadd as root.

       As a special case, if file contains a line that begins root { then it is assumed to  be	a
       complete  PMNS that needs to be merged, so none of the subtree extraction and rewriting is
       performed and file is handed directly to pmnsmerge(1).

       Provided some initial integrity checks are satisfied, pmnsadd will update the  PMNS  using
       pmnsmerge(1) - if this fails for any reason, the original namespace remains unchanged.

       The -d option allows the resultant PMNS to optionally contain duplicate PMIDs with differ-
       ent names in the PMNS.  By default this condition is considered an error.

CAVEAT
       Once the writing of the new namespace file has  begun,  the  signals  SIGINT,  SIGHUP  and
       SIGTERM will be ignored to protect the integrity of the new files.

FILES
       $PCP_VAR_DIR/pmns/root	the  default PMNS, when then environment variable PMNS_DEFAULT is
				unset

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 config-
       uration file, as described in pcp.conf(5).

SEE ALSO
       pmnsdel(1), pmnsmerge(1), pcp.conf(5), pcp.env(5) and pmns(5).

Performance Co-Pilot			       PCP				       PMNSADD(1)
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