This command starts the Collector process for the tree TREENAME. By
default it forks into a daemon, sets the log output file to
/var/log/torrus/collector.TREENAME.log, performs one
Collector cycle, and sleeps until the next cycle is scheduled. In
daemon mode the log file can be reopened by sending it a SIGHUP
Collector cycle scheduling is controlled by two parameters defined
for each individual configuration leaf: "collector-period" and
"collector-timeoffset". See the Torrus Configuration Guide for more
The number of OID (Object IDentifier) variable bindings sent by
Collector is controlled by the datasource parameter "snmp-oids-per-pdu".
It is set to a default value of 40 in snmp-defs.xml, and may be
overwritten at the host level.
Defines the collector instance. A single tree can allow more than one
collector instance. The number of instances is defined in "run" hash
in the torrus-siteconfig.pl's %Torrus::Global::treeConfig.
If the number of instances is more than one, this option is mandatory.
The collecting job is split between the instances, and normally all
instances should be started by the startup scripts. The tree should
be re-compiled after the number of instances is changed in the siteconfig.
In the example below the tree tree_A will be served by three