Merge branch 'collectd-4.4' into collectd-4.5

[collectd.git] / README

diff --git a/README b/README
index ca2bdf6..e698786 100644 (file)
--- a/README
+++ b/README
@@ -62,6 +62,9 @@ Features
       Values gathered by a custom program or script.
       See collectd-exec(5).
 
+    - filecount
+      Count the number of files in directories.
+
     - hddtemp
       Harddisk temperatures using hddtempd.
 
@@ -132,6 +135,10 @@ Features
       Network UPS tools: UPS current, voltage, power, charge, utilisation,
       temperature, etc. See upsd(8).
 
+    - onewire (EXPERIMENTAL!)
+      Read onewire sensors using the owcapu library of the owfs project.
+      Please read in collectd.conf(5) why this plugin is experimental.
+
     - perl
       The perl plugin implements a Perl-interpreter into collectd. You can
       write your own plugins in Perl and return arbitrary values using this
@@ -141,6 +148,10 @@ Features
       Network latency: Time to reach the default gateway or another given
       host.
 
+    - postgresql
+      PostgreSQL database statistics: active server connections, transaction
+      numbers, block IO, table row manipulations.
+
     - processes
       Process counts: Number of running, sleeping, zombie, ... processes.
 
@@ -357,6 +368,10 @@ Prerequisites
     can be used)
     Used by the `ping' plugin to send and receive ICMP packets.
 
+  * libowcapi (optional)
+    Used by the `onewire' plugin to read values from onewire sensors (or the
+    owserver(1) daemon).
+
   * libpcap (optional)
     Used to capture packets by the `dns' plugin.
 
@@ -364,6 +379,9 @@ Prerequisites
     Obviously used by the `perl' plugin. The library has to be compiled with
     ithread support (introduced in Perl 5.6.0).
 
+  * libpq (optional)
+    The PostgreSQL C client library used by the `postgresql' plugin.
+
   * librrd (optional; headers and library; rrdtool 1.0 and 1.2 both work fine)
     If built without `librrd' the resulting binary will be `client only', i.e.
     will send its values via multicast and not create any RRD files itself.
@@ -405,9 +423,11 @@ Configuring / Compiling / Installing
   disable all plugins whose requirements cannot be fulfilled (any other plugin
   will be enabled). To enable a plugin, install missing dependencies (see
   section `Prerequisites' above) and rerun `configure'. If you specify the
-  `--enable-<plugin>' configure option, you can force the plugin to be built.
-  This will most likely fail though unless you're working in a very unusual
-  setup and you really know what you're doing.
+  `--enable-<plugin>' configure option, the script will fail if the depen-
+  dencies for the specified plugin are not met. If you specify the
+  `--disable-<plugin>' configure option, the plugin will not be built. Both
+  options are meant for package maintainers and should not be used in everyday
+  situations.
 
   By default, collectd will be installed into `/opt/collectd'. You can adjust
   this setting by specifying the `--prefix' configure option - see INSTALL for