PMNSDEL(1)                  General Commands Manual                 PMNSDEL(1)

NAME
       pmnsdel - delete a subtree of names from the Performance Co-Pilot PMNS

SYNOPSIS
       $PCP_BINADM_DIR/pmnsdel [-?] [-n namespace] metricpath [...]

DESCRIPTION
       pmnsdel removes subtrees of names from a Performance Metrics Name Space
       (PMNS), as used by the components of the Performance Co-Pilot (PCP).

       Normally pmnsdel 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 metric names to be deleted are all those for which one of the
       metricpath arguments is a prefix in the PMNS, see PMNS(5).

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

       Provided some initial integrity checks are satisfied, pmnsdel will
       update the necessary PMNS files.  Should an error be encountered the
       original namespace is restored.  Note that any PMNS files that are no
       longer referenced by the modified namespace will not be removed, even
       though their contents are not part of the new namespace.

OPTIONS
       The available command line options are:

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

       -?, --help
            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
       pmnsadd(1), pmnsmerge(1), pcp.conf(5), pcp.env(5) and PMNS(5).

Performance Co-Pilot                  PCP                           PMNSDEL(1)