</Plugin>
In the B<Plugin> block, there may be one or more B<URL> blocks, each defining a
-URL to be fetched via HTTP (using libcurl). Within each B<URL> block there are
+URL to be fetched using libcurl. Within each B<URL> block there are
options which specify the connection parameters, for example authentication
information, and one or more B<XPath> blocks.
B<RegisterType> has been set to B<Uint32> or B<Float>, this and the next
register will be read (the register number is increased by one).
-=item B<RegisterType> B<Uint16>|B<Uint32>|B<Float>
+=item B<RegisterType> B<Int16>|B<Int32>|B<Uint16>|B<Uint32>|B<Float>
-Specifies what kind of data is returned by the device. If the type is B<Uint32>
-or B<Float>, two 16E<nbsp>bit registers will be read and the data is combined
-into one value. Defaults to B<Uint16>.
+Specifies what kind of data is returned by the device. If the type is B<Int32>,
+B<Uint32> or B<Float>, two 16E<nbsp>bit registers will be read and the data is
+combined into one value. Defaults to B<Uint16>.
=item B<Type> I<Type>
=head2 Plugin C<swap>
The I<Swap plugin> collects information about used and available swap space. On
-I<Solaris>, the following options are available:
+I<Linux> and I<Solaris>, the following options are available:
=over 4
=item B<ReportByDevice> B<false>|B<true>
-Configures how to report physical swap devices. If set to B<false> is used (the
+Configures how to report physical swap devices. If set to B<false> (the
default), the summary over all swap devices is reported only, i.e. the globally
used and available space over all devices. If B<true> is configured, the used
and available space of each device will be reported separately.
-This option is only available if the I<Swap plugin> can use the L<swapctl(2)>
-mechanism under I<Solaris>.
+This option is only available if the I<Swap plugin> can read C</proc/swaps>
+(under Linux) or use the L<swapctl(2)> mechanism (under I<Solaris>).
=back
collect on-wire traffic you could, for example, use the logging facilities of
iptables to feed data for the guest IPs into the iptables plugin.
+=head2 Plugin C<write_graphite>
+
+The C<write_graphite> plugin writes data to I<Carbon>, the storage layer of
+I<Graphite>.
+
+Synopsis:
+
+ <Plugin write_graphite>
+ <Carbon>
+ Host "localhost"
+ Port "2003"
+ Prefix "collectd"
+ </Carbon>
+ </Plugin>
+
+=over 4
+
+=item B<Host> I<Address>
+
+Hostname or address to connect to. Defaults to C<localhost>.
+
+=item B<Port> I<Service>
+
+Service name or port number to connect to. Defaults to C<2003>.
+
+=item B<Prefix> I<String>
+
+When set, I<String> is added in front of the host name. Dots and whitespace are
+I<not> escaped in this string (see B<EscapeCharacter> below).
+
+=item B<Postfix> I<String>
+
+When set, I<String> is appended to the host name. Dots and whitespace are
+I<not> escaped in this string (see B<EscapeCharacter> below).
+
+=item B<EscapeCharacter> I<Char>
+
+I<Carbon> uses the dot (C<.>) as escape character and doesn't allow whitespace
+in the identifier. The B<EscapeCharacter> option determines which character
+dots, whitespace and control characters are replaced with. Defaults to
+underscore (C<_>).
+
+=back
+
=head2 Plugin C<write_http>
This output plugin submits values to an http server by POST them using the