newhelp(1) [centos man page]

NEWHELP(1)						      General Commands Manual							NEWHELP(1)

NAME

       newhelp - generate a performance metrics help database

SYNOPSIS

       $PCP_BINADM_DIR/newhelp [-V] [-n pmnsfile] [-o outputfile] [-v version] [file ...]

DESCRIPTION

       newhelp generates the Performance Co-Pilot help text files used by Performance Metric Domain Agents (PMDAs).

       Normally  newhelp operates on the default Performance Metrics Namespace (PMNS), however if the -n option is specified an alternative names-
       pace is loaded from the file pmnsfile.

       When there is only one input file, the base name of the new database is derived from the name of the input file, otherwise the -o flag must
       be  given to explicitly name the database.  If no input files are supplied, newhelp reads from the standard input stream, in which case the
       -o flag must be given.

       If the output file name is determined to be foo, newhelp will create foo.dir and foo.pag.

       Although historically there have been multiple help text file formats, the only format currently supported using the -v option  is  version
       2, and this is the default if no -v flag is provided.

       The -V flag causes verbose messages to be printed while newhelp is parsing its input.

       The  first line of each entry in a help source file consists of an ``@'' character beginning the line followed by a space and then the per-
       formance metric name and a one line description of the metric.  Following lines (up to the next line beginning with ``@'' or end  of  file)
       may contain a verbose help description.	E.g.

	    #
	    # This is an example of newhelp's input syntax
	    #
	    @ kernel.all.cpu.idle CPU idle time
	    A cumulative count of the number of milliseconds
	    of CPU idle time, summed over all processors.

       Three-part  numeric  metric  identifiers  (PMIDs) may be used in place of metric names, e.g. 60.0.23 rather than kernel.all.cpu.idle in the
       example above.  Other than for dynamic metrics (where the existence of a metric is known to a PMDA, but not visible in the PMNS	and  hence
       has no name that could be known to newhelp) use of this syntactic variant is not encouraged.

       Lines beginning with ``#'' are ignored, as are blank lines in the file before the first ``@''.  The verbose help text is optional.

       As  a  special case, a ``metric'' name of the form NNN.MM (for numeric NNN and MM) is interpreted as an instance domain identification, and
       the text describes the instance domain.

FILES

       $PCP_VAR_DIR/pmns/*
		 default PMNS specification files

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 configura-
       tion file, as described in pcp.conf(5).

SEE ALSO

       chkhelp(1), PMAPI(3), pmLookupInDomText(3), pmLookupText(3), pcp.conf(5) and pcp.env(5).

Performance Co-Pilot							PCP								NEWHELP(1)

Check Out this Related Man Page

PMLOADNAMESPACE(3)					     Library Functions Manual						PMLOADNAMESPACE(3)

NAME

       pmLoadNameSpace - load a local PMNS for an application

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmLoadNameSpace(const char *filename);

       cc ... -lpcp

DESCRIPTION

       If  the	application wants to force using a local Performance Metrics Name Space (PMNS) instead of a distributed PMNS then it must load the
       PMNS using pmLoadNameSpace or pmLoadASCIINameSpace(3).  If the application is to use a distributed PMNS, then it should NOT make a call	to
       load the PMNS explicitly.

       The filename argument designates the PMNS of interest.  For applications not requiring a tailored PMNS, the special value PM_NS_DEFAULT may
       be used for filename, to force the default local PMNS to be loaded.

       The default local 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 local PMNS.

       Externally a PMNS is stored in an ASCII format as described in pmns(5).

       By  default,  multiple names in the PMNS are not allowed to be associated with a single Performance Metrics Identifier (PMID).  pmLoadASCI-
       INameSpace(3) provides an alternative interface with user-defined control over the processing of duplicate PMIDs in the PMNS.

       pmLoadNameSpace returns zero on success.

FILES

       $PCP_VAR_DIR/pmns/root	the default local 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 configura-
       tion file, as described in pcp.conf(5).	Values for these variables may be obtained programmatically using the pmGetConfig(3) function.

SEE ALSO

       PMAPI(3), pmGetConfig(3), pmLoadASCIINameSpace(3), pmTrimNameSpace(3), pcp.conf(5), pcp.env(5) and pmns(5).

DIAGNOSTICS

       Syntax and other errors in the parsing of the PMNS are reported on stderr with a message of the form ``Error Parsing ASCII PMNS: ...''.

       PM_ERR_DUPPMNS

	      It is an error to try and load more than one PMNS, or to call either pmLoadNameSpace and/or pmLoadASCIINameSpace(3) more than once.

       PM_ERR_PMNS

	      Syntax error in the PMNS file.

Performance Co-Pilot							PCP							PMLOADNAMESPACE(3)

Linux and UNIX Man Pages

newhelp(1) [centos man page]

Check Out this Related Man Page