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NAME | SYNOPSIS | DESCRIPTION | PCP ENVIRONMENT | DIAGNOSTICS | SIGNALS | SEE ALSO | COLOPHON |
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PMFIND(1) General Commands Manual PMFIND(1)
pmfind - find PCP services on the network
pmfind [-q] [-m mechanism] [-s service] [-r] [-t timeout]
pmfind searches for instances of the specified PCP service being
advertised on the network and prints a list of URLs corresponding to
the services discovered.
By default pmfind will search for all supported PCP services, however
a specific PCP service to discover can be specified using the -s
option. Supported services are pmcd(1), pmproxy(1) and pmwebd(1).
The -m option sets the mechanism that pmfind uses when performing
service discovery. By default, or if the keyword "all" is specified,
every available mechanism will be used (iteratively). Supported
mechanisms are:
avahi Searches for services which are broadcasting using mDNS via
avahi-daemon(8). An optional suffix ",timeout=N" may be added
to limit the amount of time waiting for the avahi-daemon. N is
a floating point number specifying the number of seconds to
wait. The default is 0.5 seconds. This timeout may also be
specified by setting the environment variable
AVAHI_DISCOVERY_TIMEOUT to the desired number of seconds. If
both are specified, then the value specified in the
environment variable takes precedence.
probe=<net-address>/<mask-bits>
Actively probes the given subnet for the requested PCP
service(s). <net-address> is an inet or ipv6 network address
and <mask-bits> is the number of bits used to define the
subnet. For example, 192.168.1.0/24 defines an 8 bit subnet
consisting of the addresses 192.168.1.0 through 192.168.1.255.
An optional suffix ",maxThreads=N" may be added to limit the
number of threads used while probing. The default is the value
of FD_SETSIZE or the number of addresses in the subnet,
whichever is less. An optional suffix ",timeout=N" may be
added to limit the amount of time waiting for each connection
attempt. N is a floating point number specifying the number of
seconds to wait. The default is 20ms.
The -r option requests that DNS name resolution be attempted for the
addresses of any discovered services. The default is to display the
network addresses of any discovered services.
The -t option sets the maximum amount of time that pmfind will take
before interrupting the service discovery. The argument is a floating
point number representing the number of seconds before timing out.
The default is to take as much time as is needed to complete the
process.
The -q option suppresses all output on the standard output stream.
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).
The value of the exit status from the command is zero when services
were successfully located, one if no services were found, and two if
an error occurred.
In the event of an error, a message will be generated on standard
error that is intended to be self-explanatory.
pmfind will interrupt the service discovery process when one of the
following signals is received: SIGHUP, SIGPIPE, SIGINT, SIGTERM,
SIGXFSZ, SIGXCPU. pmfind will report any results which were
discovered up to point of the interruption.
PCPIntro(1), pmcd(1), pmproxy(1), pmwebd(1), PMAPI(3),
pmDiscoverServices(3), pcp.conf(5) and pcp.env(5).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at ⟨http://www.pcp.io/⟩.
If you have a bug report for this manual page, send it to
pcp@groups.io. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2018-02-02.) 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
man-pages@man7.org
Performance Co-Pilot PCP PMFIND(1)
Pages that refer to this page: pmdiscoverservices(3)
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