Batterycharge, -current and voltage of ACPI and PMU based laptop
batteries.
- - curl
- Parse statistics from websites using regular expressions.
-
- bind
Name server and resolver statistics from the `statistics-channel'
interface of BIND 9.5, 9,6 and later.
+ - conntrack
+ Number of nf_conntrack entries.
+
+ - contextswitch
+ Number of context switches done by the operating system.
+
- cpu
CPU utilization: Time spent in the system, user, nice, idle, and related
states.
- cpufreq
CPU frequency (For laptops with speed step or a similar technology)
+ - curl
+ Parse statistics from websites using regular expressions.
+
+ - curl_json
+ Retrieves JSON data via cURL and parses it according to user
+ configuration.
+
+ - curl_xml
+ Retrieves XML data via cURL and parses it according to user
+ configuration.
+
- dbi
Executes SQL statements on various databases and interprets the returned
data.
- filecount
Count the number of files in directories.
+ - fscache
+ Linux file-system based caching framework statistics.
+
+ - gmond
+ Receive multicast traffic from Ganglia instances.
+
- hddtemp
Harddisk temperatures using hddtempd.
- irq
IRQ counters: Frequency in which certain interrupts occur.
+ - java
+ Integrates a `Java Virtual Machine' (JVM) to execute plugins in Java
+ bytecode. See “Configuring with libjvm” below.
+
- load
System load average over the last 1, 5 and 15 minutes.
+ - lpar
+ Detailed CPU statistics of the “Logical Partitions” virtualization
+ technique built into IBM's POWER processors.
+
- libvirt
CPU, disk and network I/O statistics from virtual machines.
+ - madwifi
+ Queries very detailed usage statistics from wireless LAN adapters and
+ interfaces that use the Atheros chipset and the MadWifi driver.
+
- mbmon
Motherboard sensors: temperature, fanspeed and voltage information,
using mbmon(1).
+ - memcachec
+ Query and parse data from a memcache daemon (memcached).
+
- memcached
Statistics of the memcached distributed caching system.
<http://www.danga.com/memcached/>
Memory utilization: Memory occupied by running processes, page cache,
buffer cache and free.
+ - modbus
+ Reads values from Modbus/TCP enabled devices. Supports reading values
+ from multiple "slaves" so gateway devices can be used.
+
- multimeter
Information provided by serial multimeters, such as the `Metex
M-4650CR'.
MySQL server statistics: Commands issued, handlers triggered, thread
usage, query cache utilization and traffic/octets sent and received.
+ - netapp
+ Plugin to query performance values from a NetApp storage system using the
+ “Manage ONTAP” SDK provided by NetApp.
+
- netlink
Very detailed Linux network interface and routing statistics. You can get
(detailed) information on interfaces, qdiscs, classes, and, if you can
Network UPS tools: UPS current, voltage, power, charge, utilisation,
temperature, etc. See upsd(8).
+ - olsrd
+ Queries routing information from the “Optimized Link State Routing”
+ daemon.
+
- onewire (EXPERIMENTAL!)
Read onewire sensors using the owcapu library of the owfs project.
Please read in collectd.conf(5) why this plugin is experimental.
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.
- protocols
Counts various aspects of network protocols such as IP, TCP, UDP, etc.
+ - python
+ The python plugin implements a Python interpreter into collectd. This
+ makes it possible to write plugins in Python which are executed by
+ 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.
+
- rrdcached
RRDtool caching daemon (RRDcacheD) statistics.
- swap
Pages swapped out onto harddisk or whatever is called `swap' by the OS..
+ - table
+ Parse table-like structured files.
+
- tail
Follows (tails) logfiles, parses them by lines and submits matched
values.
- teamspeak2
TeamSpeak2 server statistics.
+ - ted
+ Plugin to read values from `The Energy Detective' (TED).
+
- thermal
Linux ACPI thermal zone information.
+ - tokyotyrant
+ Reads the number of records and file size from a running Tokyo Tyrant
+ server.
+
+ - uptime
+ System uptime statistics.
+
- 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.
- xmms
Bitrate and frequency of music played with XMMS.
- * Output can be written or send to various destinations by the following
+ - zfs_arc
+ Statistics for ZFS' “Adaptive Replacement Cache” (ARC).
+
+ * Output can be written or sent to various destinations by the following
plugins:
+ - amqp
+ Sends JSON-encoded data to an Advanced Message Queuing Protocol (AMQP)
+ server, such as RabbitMQ.
+
- csv
Write to comma separated values (CSV) files. This needs lots of
diskspace but is extremely portable and can be analysed with almost
you can easily do weird stuff with the plugins we didn't dare think of
;) See collectd-perl(5).
+ - python
+ It's possible to implement write plugins in Python using the python
+ plugin. See collectd-python(5) for details.
+
- rrdcached
Output to round-robin-database (RRD) files using the RRDtool caching
daemon (RRDcacheD) - see rrdcached(1). That daemon provides a general
needed. Please read collectd-unixsock(5) for a description on how that's
done.
+ - write_http
+ Sends the values collected by collectd to a web-server using HTTP POST
+ requests. The transmitted data is either in a form understood by the
+ Exec plugin or formatted in JSON.
+
+ - write_redis
+ Sends the values to a Redis key-value database server.
+
* Logging is, as everything in collectd, provided by plugins. The following
plugins keep up informed about what's going on:
Log messages are propagated to plugins written in Perl as well.
See collectd-perl(5).
+ - python
+ It's possible to implement log plugins in Python using the python plugin.
+ See collectd-python(5) for details.
+
- syslog
Logs to the standard UNIX logging mechanism, syslog.
Notifications are propagated to plugins written in Perl as well.
See collectd-perl(5).
+ - python
+ It's possible to implement notification plugins in Python using the
+ python plugin. See collectd-python(5) for details.
+
* Value processing can be controlled using the "filter chain" infrastructure
and "matches" and "targets". The following plugins are available:
+ - match_empty_counter
+ Match counter values which are currently zero.
+
+ - match_hashed
+ Match values using a hash function of the hostname.
+
- match_regex
Match values by their identifier based on regular expressions.
- target_replace
Replace parts of an identifier using regular expressions.
+ - target_scale
+ Scale (multiply) values by an arbitrary value.
+
- target_set
Set (overwrite) entire parts of an identifier.
* Miscellaneous plugins:
+ - threshold
+ Checks values against configured thresholds and creates notifications if
+ values are out of bounds. See collectd-threshold(5) for details.
+
- uuid
Sets the hostname to an unique identifier. This is meant for setups
where each client may migrate to another physical host, possibly going
network plugins, makes sure your resources are used efficiently. Also,
since collectd is programmed multithreaded it benefits from hyperthreading
and multicore processors and makes sure that the daemon isn't idle if only
- one plugins waits for an IO-operation to complete.
+ one plugin waits for an IO-operation to complete.
* Once set up, hardly any maintenance is necessary. Setup is kept as easy
as possible and the default values should be okay for most users.
* 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' or `nginx' plugin.
+ If you want to use the `apache', `ascent', `curl', `nginx', or `write_http'
+ plugin.
<http://curl.haxx.se/>
* libdbi (optional)
For the `notify_email' plugin.
<http://www.stafford.uklinux.net/libesmtp/>
+ * libganglia (optional)
+ Used by the `gmond' plugin to process data received from Ganglia.
+ <http://ganglia.info/>
+
+ * libgcrypt (optional)
+ Used by the `network' plugin for encryption and authentication.
+ <http://www.gnupg.org/>
+
* libhal (optional)
If present, the uuid plugin will check for UUID from HAL.
<http://hal.freedesktop.org/>
- * libiptc (optional, if not found a version shipped with this distribution
- can be used if the Linux kernel headers are available)
+ * libiptc (optional)
For querying iptables counters.
<http://netfilter.org/>
+ If not found on the system, a version shipped with this distribution can
+ be used. It requires some Linux headers in /usr/include/linux. You can
+ force the build system to use the shipped version by specifying
+ --with-libiptc=shipped
+ when running the configure script.
+
+ * libjvm (optional)
+ Library that encapsulates the `Java Virtual Machine' (JVM). This library is
+ used by the Java plugin to execute Java bytecode. See “Configuring with
+ libjvm” below.
+ <http://openjdk.java.net/> (and others)
+
+ * libmemcached (optional)
+ Used by the `memcachec' plugin to connect to a memcache daemon.
+ <http://tangent.org/552/libmemcached.html>
+
+ * libmodbus (optional)
+ Used by the “modbus” plugin to communicate with Modbus/TCP devices. The
+ “modbus” plugin works with version 2.0.3 of the library – due to frequent
+ API changes other versions may or may not compile cleanly.
+ <http://www.libmodbus.org/>
+
* libmysqlclient (optional)
Unsurprisingly used by the `mysql' plugin.
<http://dev.mysql.com/>
+ * libnetapp (optional)
+ Required for the “netapp” plugin.
+ This library is part of the “Manage ONTAP SDK” published by NetApp.
+
* libnetlink (optional)
Used, obviously, for the `netlink' plugin.
<http://www.linuxfoundation.org/en/Net:Iproute2>
For the `notify_desktop' plugin.
<http://www.galago-project.org/>
- * liboping (optional, if not found a version shipped with this distribution
- can be used)
+ * liboping (optional)
Used by the `ping' plugin to send and receive ICMP packets.
<http://verplant.org/liboping/>
Used to capture packets by the `dns' plugin.
<http://www.tcpdump.org/>
+ * libperfstat (optional)
+ Used by various plugins to gather statistics under AIX.
+
* libperl (optional)
Obviously used by the `perl' plugin. The library has to be compiled with
ithread support (introduced in Perl 5.6.0).
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, Python 2.3 and later and Python 3
+ are supported.
+ <http://www.python.org/>
+
+ * librabbitmq (optional; also called “rabbitmq-c”)
+ Used by the AMQP plugin for AMQP connections, for example to RabbitMQ.
+ <http://hg.rabbitmq.com/rabbitmq-c/>
+
+ * librouteros (optional)
+ Used by the `routeros' plugin to connect to a device running `RouterOS'.
+ <http://verplant.org/librouteros/>
+
* librrd (optional)
Used by the `rrdtool' and `rrdcached' plugins. The latter requires RRDtool
client support which was added after version 1.3 of RRDtool. Versions 1.0,
and/or Solaris.
<http://www.i-scream.org/libstatgrab/>
+ * libtokyotyrant (optional)
+ Used by the tokyotyrant plugin.
+ <http://1978th.net/tokyotyrant/>
+
* libupsclient/nut (optional)
For the `nut' plugin which queries nut's `upsd'.
<http://networkupstools.org/>
* libxmms (optional)
<http://www.xmms.org/>
+ * libyajl (optional)
+ 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
------------------------------------
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, 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.
+ dencies for the specified plugin are not met. In that case you can force the
+ plugin to be built using the `--enable-<plugin>=force' configure option.
+ This will most likely fail though unless you're working in a very unusual
+ setup and you really know what you're doing. If you specify the
+ `--disable-<plugin>' configure option, the plugin will not be built. If you
+ specify the `--enable-all-plugins' or `--disable-all-plugins' configure
+ options, all plugins will be enabled or disabled respectively by default.
+ Explicitly enabling or disabling a plugin overwrites the default for the
+ specified plugin. These 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
prefixed to all installation directories. This might be useful when creating
packages for collectd.
+Configuring with libjvm
+-----------------------
+
+ To determine the location of the required files of a Java installation is not
+ an easy task, because the locations vary with your kernel (Linux, SunOS, …)
+ and with your architecture (x86, SPARC, …) and there is no ‘java-config’
+ script we could use. Configuration of the JVM library is therefore a bit
+ tricky.
+
+ The easiest way to use the `--with-java=$JAVA_HOME' option, where
+ `$JAVA_HOME' is usually something like:
+ /usr/lib/jvm/java-1.5.0-sun-1.5.0.14
+
+ The configure script will then use find(1) to look for the following files:
+
+ - jni.h
+ - jni_md.h
+ - libjvm.so
+
+ If found, appropriate CPP-flags and LD-flags are set and the following
+ library checks succeed.
+
+ If this doesn't work for you, you have the possibility to specify CPP-flags,
+ C-flags and LD-flags for the ‘Java’ plugin by hand, using the following three
+ (environment) variables:
+
+ - JAVA_CPPFLAGS
+ - JAVA_CFLAGS
+ - JAVA_LDFLAGS
+
+ For example (shortened for demonstration purposes):
+
+ ./configure JAVA_CPPFLAGS="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
+
+ Adding "-ljvm" to the JAVA_LDFLAGS is done automatically, you don't have to
+ do that.
Crosscompiling
--------------