rrdtool plugin: Make sure "cache_timeout + random_variation" dosn't get negative.

[collectd.git] / README

diff --git a/README b/README
index 7d1a64a..0c7a422 100644 (file)
--- a/README
+++ b/README
@@ -208,6 +208,10 @@ Features
       write your own plugins in Perl and return arbitrary values using this
       API. See collectd-perl(5).
 
+    - pinba
+      Receive and dispatch timing values from Pinba, a profiling extension for
+      PHP.
+
     - ping
       Network latency: Time to reach the default gateway or another given
       host.
@@ -231,6 +235,10 @@ Features
       collectd without the need to start a heavy interpreter every interval.
       See collectd-python(5) for details.
 
+    - redis
+      The redis plugin gathers information from a redis server, including:
+      uptime, used memory, total connections etc.
+
     - routeros
       Query interface and wireless registration statistics from RouterOS.
 
@@ -284,6 +292,9 @@ Features
     - users
       Users currently logged in.
 
+    - varnish
+      Various statistics from Varnish, an HTTP accelerator.
+
     - vmem
       Virtual memory statistics, e. g. the number of page-ins/-outs or the
       number of pagefaults.
@@ -500,6 +511,10 @@ Prerequisites
   * libclntsh (optional)
     Used by the `oracle' plugin.
 
+  * libcredis (optional)
+    Used by the redis plugin. Please note that you require a 0.2.2 version
+    or higher. <http://code.google.com/p/credis/>
+
   * libcurl (optional)
     If you want to use the `apache', `ascent', `curl', `nginx', or `write_http'
     plugin.
@@ -591,6 +606,11 @@ Prerequisites
     The PostgreSQL C client library used by the `postgresql' plugin.
     <http://www.postgresql.org/>
 
+  * libprotobuf-c, protoc-c (optional)
+    Used by the `pinba' plugin to generate a parser for the network packets
+    sent by the Pinba PHP extension.
+    <http://code.google.com/p/protobuf-c/>
+
   * libpython (optional)
     Used by the `python' plugin. Currently, only 2.3 ≦ Python < 3 is supported.
     <http://www.python.org/>
@@ -641,6 +661,10 @@ Prerequisites
     Parse JSON data. This is needed for the `curl_json' plugin.
     <http://github.com/lloyd/yajl>
 
+  * libvarnish (optional)
+     Fetches statistics from a Varnish instance. This is needed for the Varnish plugin
+     <http://varnish-cache.org>
+
 Configuring / Compiling / Installing
 ------------------------------------