collectd.conf(5): Documented the fact that the configuration is processes from top...

[collectd.git] / src / collectd.conf.pod

diff --git a/src/collectd.conf.pod b/src/collectd.conf.pod
index 29e26af..bab709b 100644 (file)
--- a/src/collectd.conf.pod
+++ b/src/collectd.conf.pod
@@ -32,6 +32,12 @@ ignored. Values are either string, enclosed in double-quotes,
 B<false>. String containing of only alphanumeric characters and underscores do
 not need to be quoted.
 
+The configuration is read and processed in order, i.E<nbsp>e. from top to
+bottom. So the plugins are loaded in the order listed in this config file. It
+is a good idea to load any logging plugins first in order to catch messages
+from plugins during configuration. Also, the C<LoadPlugin> option B<must> occur
+B<before> the C<E<lt>Plugin ...E<gt>> block.
+
 =head1 GLOBAL OPTIONS
 
 =over 4
@@ -163,7 +169,7 @@ installed and an "cpu governor" (that's a kernel module) is loaded.
 
 =item B<DataDir> I<Directory>
 
-Set the directory to store RRD-files under. Per default RRD-files are generated
+Set the directory to store CSV-files under. Per default CSV-files are generated
 beneath the daemon's working directory, i.E<nbsp>e. the B<BaseDir>.
 
 =back
@@ -220,7 +226,7 @@ Sets the socket-file which is to be created.
 
 =item B<SocketGroup> I<Group>
 
-If running as root change the group of the UNIX-socket after it has been 
+If running as root change the group of the UNIX-socket after it has been
 created. Defaults to B<collectd>.
 
 =item B<SocketPerms> I<Permissions>
@@ -394,7 +400,7 @@ TCP-Port to connect to. Defaults to B<411>.
 The C<mysql plugin> requires B<mysqlclient> to be installed. It connects to the
 database when started and keeps the connection up as long as possible. When the
 connection is interrupted for whatever reason it will try to re-connect. The
-plugin logs loud complaints in case anything goes wrong.
+plugin will complaint loudly in case anything goes wrong.
 
 This plugin issues C<SHOW STATUS> and evaluates C<Bytes_{received,sent}>,
 C<Com_*> and C<Handler_*> which correspond to F<mysql_octets.rrd>,
@@ -650,15 +656,18 @@ beneath the daemon's working directory, i.E<nbsp>e. the B<BaseDir>.
 
 =item B<StepSize> I<Seconds>
 
-Sets the stepsize of newly created RRD-files. Ideally (and per default) this
-setting is identical to the global B<Interval>-option and should not be
-smaller. If unsure, don't set this option.
+B<Force> the stepsize of newly created RRD-files. Ideally (and per default)
+this setting is unset and the stepsize is set to the interval in which the data
+is collected. Do not use this option unless you absolutely have to for some
+reason. Setting this option may cause problems with the C<snmp plugin>, the
+C<exec plugin> or when the daemon is set up to receive data from other hosts.
 
 =item B<HeartBeat> I<Seconds>
 
-Sets the heartbeat of newly created RRD-files. Ideally this setting is bigger
-than the B<Interval>-setting, by default it's twice the B<Interval>-setting. If
-unsure, don't set this option.
+B<Force> the heartbeat of newly created RRD-files. This setting should be unset
+in which case the heartbeat is set to twice the B<StepSize> which should equal
+the interval in which data is collected. Do not set this option unless you have
+a very good reason to do so.
 
 =item B<RRARows> I<NumRows>
 
@@ -769,7 +778,7 @@ Sets the socket-file which is to be created.
 
 =item B<SocketGroup> I<Group>
 
-If running as root change the group of the UNIX-socket after it has been 
+If running as root change the group of the UNIX-socket after it has been
 created. Defaults to B<collectd>.
 
 =item B<SocketPerms> I<Permissions>