collectd - System information collection daemon
=================================================
-http://verplant.org/collectd/
+http://collectd.org/
About
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* collectd is able to collect the following data:
+ - Apache server utilization
+ (Number of bytes transfered, number of requests handled and detailed
+ scoreboard statistics)
+
+ - APC UPS Daemon
+ (UPS charge, load, input/output/battery voltage, etc)
+
+ - Apple Sensors
+ (Temperature, fanspeed and voltage sensors of apple computers)
+
+ - Battery
+ (Charge, current and charge of ACPI and PMU based batteries)
+
- CPU utilization
(Time spent in system, user, nice and idle)
- NFS Procedures
(Which NFS command were called how often. Only NFSv2 and NFSv3 right now)
+ - NTP Daemon
+ (Local clock drift, offset to peers, etc)
+
- Ping latency
(Time to reach the default gateway or another given host)
- Process counts
(Number of running, sleeping, zombie, ... processes)
- - Serial
- (RX and TX of serial interfaces)
-
- Sensors
(System temperatured and fan rotation speeds)
+ - Serial
+ (RX and TX of serial interfaces)
+
- Swap
(Pages swapped out onto harddisk or whatever is called `swap' by the OS..)
- Users
(Currently logged in users)
+ - VServer
+ (System ressources used by vservers)
+
+ - Wireless
+ (Link quality of wireless cards)
+
* Performance: Running as a daemon collectd doesn't spend much time in
startup. Since collectd links against libping, librrd and libsensors it
doesn't need to start any other processes.
own experiments.. Some of them require the `RRDs' Perl module.
(`librrds-perl' on Debian)
- * The RRD-files that collectd creates hold the following data. Use ``rrdtool
- resize'' if you want to cover longer/shorter periods of time.
-
- Resolution | Data points | Timespan
- -----------+-------------+----------
- 60 seconds | 1500 | 25 hours
- 30 minutes | 1680 | 35 days
- 6 hours | 1520 | 380 days
+ * The RRAs of the automatically created RRD files depend on the `step'
+ and `heartbeat' settings given on compile time. For a list of the
+ default RRAs take a look in the collectd(1) manpage.
Prerequisites
this library, are not supported in collectd right now..
<http://www.i-scream.org/libstatgrab/>
+ * libcurl (optional)
+ If you want to use the `apache' plugin
+
+ * CoreFoundation.framework and IOKit.framework
+ For copiling on darwin in general and the `apple_sensors' plugin in
+ particular.
+
Author
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