NAME

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

SYNOPSIS

       $PCP_BINADM_DIR/pmnsadd [-?]  [-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 Name Space (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 variable 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 myagent.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.

OPTIONS

       The available command line options are:

       -n pmnsfile
            Load an alternative Performance Metrics Name Space (PMNS(5)) from the file pmnsfile.

       -?   Display usage message and exit.

CAVEATS

       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 the 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 configuration file, as described in pcp.conf(5).

SEE ALSO

       pmnsdel(1), pmnsmerge(1), pcp.conf(5), pcp.env(5) and PMNS(5).