{GPL, other}: Relicense to MIT license.

[collectd.git] / src / collectd.pod

diff --git a/src/collectd.pod b/src/collectd.pod
index 2a326bb..8fccdb3 100644 (file)
--- a/src/collectd.pod
+++ b/src/collectd.pod
@@ -1,3 +1,5 @@
+=encoding UTF-8
+
 =head1 NAME
 
 collectd - System statistics collection daemon
@@ -31,6 +33,11 @@ directory.
 Test the configuration only. The program immediately exits after parsing the
 config file. A return code not equal to zero indicates an error.
 
+=item B<-T>
+
+Test the plugin read callbacks only. The program immediately exits after invoking
+the read callbacks once. A return code not equal to zero indicates an error.
+
 =item B<-P> I<E<lt>pid-fileE<gt>>
 
 Specify an alternative pid file. This overwrites any settings in the config 
@@ -89,11 +96,35 @@ C<logfile plugin> and the C<syslog plugin>. With these plugins collectd can
 provide information about issues and significant situations to the user.
 Several loglevels let you suppress uninteresting messages.
 
+Starting with version C<4.3.0> collectd has support for B<monitoring>. This is
+done by checking thresholds defined by the user. If a value is out of range, a
+notification will be dispatched to "notification plugins". See
+L<collectd.conf(5)> for more detailed information about threshold checking.
+
 Please note that some plugins, that provide other means of communicating with
 the daemon, have manpages of their own to describe their functionality in more
 detail. In particular those are L<collectd-email(5)>, L<collectd-exec(5)>,
 L<collectd-perl(5)>, L<collectd-snmp(5)>, and L<collectd-unixsock(5)>
 
+=head1 SIGNALS
+
+B<collectd> accepts the following signals:
+
+=over 4
+
+=item B<SIGINT>, B<SIGTERM>
+
+These signals cause B<collectd> to shut down all plugins and terminate.
+
+=item B<SIGUSR1>
+
+This signal causes B<collectd> to signal all plugins to flush data from
+internal caches. E.E<nbsp>g. the C<rrdtool plugin> will write all pending data
+to the RRD files. This is the same as using the C<FLUSH -1> command of the
+C<unixsock plugin>.
+
+=back
+
 =head1 SEE ALSO
 
 L<collectd.conf(5)>,
@@ -107,6 +138,6 @@ L<http://collectd.org/>
 
 =head1 AUTHOR
 
-Florian Forster E<lt>octo@verplant.orgE<gt>
+Florian Forster E<lt>octo@collectd.orgE<gt>
 
 =cut