labels.conf(5) — Linux manual page


LABELS.CONF(5)             File Formats Manual            LABELS.CONF(5)

NAME         top

       labels.conf - Performance Co-Pilot labels configuration

SYNOPSIS         top


DESCRIPTION         top

       Several Performance Co-Pilot (PCP) tools and utilities support
       the use of metric labels.  This functionality applied a
       hierarchical set of labels to each instance of every metric, as
       described in pmLookupLabels(3).

       The pmcd(1) and pmproxy(1) daemons are particularly important to
       the labels system, respectively providing the labels in real-time
       and then discovering recorded (archive) labels and indexing these
       for pmseries(1) queries using a redis-server(1).

       The /etc/pcp/labels.conf file is a single point of configuration
       for behaviour affecting all labels exported by pmcd or through
       tools using PMAPI local context services.  It uses the common
       ``ini'' file format and any variable it specifies that is not in
       an explicit square-bracket enclosed section is considered a
       [global] variable.

       The available configuration variables are as follows :

            When specified in the [global] section, controls the manner
            in which the local machine-id(5) is exported as a label.
            The default setting (none) exports a "machineid" context
            label with value reflecting the contents of the
            /etc/machine-id file, on any platforms that provide this
            file.  The alternative (sha256) exports a "machineid_sha256"
            label, instead, and the value is the SHA256 (one-way) hash
            of the file.

SEE ALSO         top

       pmcd(1), pmproxy(1), pmseries(1), redis-server(1), PMAPI(3),
       pmLookupLabels(3) and machine-id(5).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       project's upstream Git repository
       ⟨⟩ on 2021-08-27.
       (At that time, the date of the most recent commit that was found
       in the repository was 2021-08-27.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Performance Co-Pilot               PCP                    LABELS.CONF(5)

Pages that refer to this page: pmcd(1)pmlookuplabels(3)