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- 2019-09-30
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snmp__processes
Name
snmp__processes - Munin plugin to monitor the number of processes on an SNMP device.
Applicable Systems
Any SNMP-capable device that reports the HOST-RESOURCES-MIB::hrSystemProcesses.0 OID.
Configuration
As a rule SNMP plugins need site specific configuration. The default configuration (shown here) will only work on insecure sites/devices.
[snmp_*]
env.version 2
env.community public
In general SNMP is not very secure at all unless you use SNMP version 3 which supports authentication and privacy (encryption). But in any case the community string for your devices should not be “public”.
Please see ‘perldoc Munin::Plugin::SNMP’ for further configuration information.
Interpretation
The total number of processes currently operating on the system.
Mib Information
This plugin requires support for the HOST-RESOURCES-MIB (RFC 2790). It reports the contents of the hrSystemProcesses OID.
Magic Markers
#%# family=snmpauto
#%# capabilities=snmpconf
Bugs
None known.
Could be extended to report the value of hrSystemMaxProcesses if it exists.
Author
Copyright (C) 2010 Matthew Boyle
Copyright (C) 2004-2005 Dagfinn Ilmari Mannsåker
Copyright (C) 2004 Jimmy Olsen
License
GPLv2
#!/usr/bin/perl -w
=head1 NAME
snmp__processes - Munin plugin to monitor the number of processes
on an SNMP device.
=head1 APPLICABLE SYSTEMS
Any SNMP-capable device that reports the
HOST-RESOURCES-MIB::hrSystemProcesses.0 OID.
=head1 CONFIGURATION
As a rule SNMP plugins need site specific configuration. The default
configuration (shown here) will only work on insecure sites/devices.
[snmp_*]
env.version 2
env.community public
In general SNMP is not very secure at all unless you use SNMP version
3 which supports authentication and privacy (encryption). But in any
case the community string for your devices should not be "public".
Please see 'perldoc Munin::Plugin::SNMP' for further configuration
information.
=head1 INTERPRETATION
The total number of processes currently operating on the system.
=head1 MIB INFORMATION
This plugin requires support for the HOST-RESOURCES-MIB (RFC 2790). It
reports the contents of the hrSystemProcesses OID.
=head1 MAGIC MARKERS
#%# family=snmpauto
#%# capabilities=snmpconf
=head1 BUGS
None known.
Could be extended to report the value of hrSystemMaxProcesses if it
exists.
=head1 AUTHOR
Copyright (C) 2010 Matthew Boyle
Copyright (C) 2004-2005 Dagfinn Ilmari Mannsåker
Copyright (C) 2004 Jimmy Olsen
=head1 LICENSE
GPLv2
=cut
use strict;
use Munin::Plugin::SNMP;
if (defined $ARGV[0] and $ARGV[0] eq 'snmpconf') {
# .iso.org.dod.internet.mgmt.mib-2.host.hrSystem.hrSystemProcesses.0
print "require 1.3.6.1.2.1.25.1.6.0 [0-9]\n";
exit 0;
}
if (defined $ARGV[0] and $ARGV[0] eq "config") {
my ($host) = Munin::Plugin::SNMP->config_session();
print "host_name $host\n" unless ($host eq 'localhost');
print <<'EOC';
graph_title Number of Processes
graph_args --base 1000 -l 0
graph_vlabel number of processes
graph_category processes
graph_info This graph shows the number of processes running on the system.
processes.label processes
processes.draw STACK
processes.info The number of processes.
EOC
exit 0;
}
my $session = Munin::Plugin::SNMP->session();
my $processes = $session->get_single('1.3.6.1.2.1.25.1.6.0');
print "processes.value ", defined $processes ? $processes : 'U', "\n";