NAME¶
pmfind - find PCP services on the network
SYNOPSIS¶
pmfind [
-q] [
-m mechanism] [
-s
service]
DESCRIPTION¶
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).
- 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 no fixed limit, which is to say
that the process' rlimits for the number of threads and open file
descriptors will be respected.
The
-q option suppresses all output on the standard output stream.
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).
DIAGNOSTICS¶
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.
SIGNALS¶
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.
SEE ALSO¶
PCPIntro(1),
pmcd(1),
pmproxy(1),
pmwebd(1),
PMAPI(3),
pmDiscoverServices(3),
pcp.conf(5) and
pcp.env(5).