1PMNSDEL(1)                  General Commands Manual                 PMNSDEL(1)
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NAME

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

9       $PCP_BINADM_DIR/pmnsdel [-n namespace] metricpath [ ... ]
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DESCRIPTION

12       pmnsdel removes subtrees of names from a Performance Metrics Name Space
13       (PMNS), as used by the components of the Performance Co-Pilot (PCP).
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15       Normally pmnsdel operates on the default Performance Metrics Name Space
16       (PMNS),  however if the -n option is specified an alternative namespace
17       is used from the file namespace.
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19       The default PMNS is found in the file $PCP_VAR_DIR/pmns/root unless the
20       environment  variable  PMNS_DEFAULT  is set, in which case the value is
21       assumed to be the pathname to the file containing the default PMNS.
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23       The metric names to be deleted are all those for which one of the  met‐
24       ricpath arguments is a prefix in the PMNS, see pmns(5).
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26       All of the files defining the PMNS must be located within the directory
27       that contains the root  of  the  PMNS,  and  this  would  typically  be
28       $PCP_VAR_DIR/pmns  for the default PMNS, and this would typically imply
29       running pmnsdel as root.
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31       Provided some initial integrity  checks  are  satisfied,  pmnsdel  will
32       update  the  necessary  PMNS files.  Should an error be encountered the
33       original namespace is restored.  Note that any PMNS files that  are  no
34       longer  referenced  by the modified namespace will not be removed, even
35       though their contents are not part of the new namespace.
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CAVEAT

38       Once the writing of the new namespace file has begun, the signals  SIG‐
39       INT, SIGHUP and SIGTERM will be ignored to protect the integrity of the
40       new files.
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FILES

43       $PCP_VAR_DIR/pmns/root   the default PMNS, when then environment  vari‐
44                                able PMNS_DEFAULT is unset
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PCP ENVIRONMENT

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

54       pmnsadd(1), pmnsmerge(1), pcp.conf(5), pcp.env(5) and pmns(5).
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58Performance Co-Pilot                  PCP                           PMNSDEL(1)
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