1 collectd - System information collection daemon
2 =================================================
8 collectd is a small daemon which collects system information periodically
9 and provides mechanisms to store and monitor the values in a variety of
16 * collectd is able to collect the following data:
19 Apache server utilization: Number of bytes transferred, number of
20 requests handled and detailed scoreboard statistics
23 APC UPS Daemon: UPS charge, load, input/output/battery voltage, etc.
26 Sensors in Macs running Mac OS X / Darwin: Temperature, fan speed and
30 Various sensors in the Aquaero 5 water cooling board made by Aquacomputer.
33 Statistics about Ascent, a free server for the game `World of Warcraft'.
36 Reads absolute barometric pressure, air pressure reduced to sea level and
37 temperature. Supported sensors are MPL115A2 and MPL3115 from Freescale
38 and BMP085 from Bosch.
41 Batterycharge, -current and voltage of ACPI and PMU based laptop
45 Name server and resolver statistics from the `statistics-channel'
46 interface of BIND 9.5, 9,6 and later.
49 Statistics from the Ceph distributed storage system.
52 CPU accounting information for process groups under Linux.
55 Chrony daemon statistics: Local clock drift, offset to peers, etc.
58 Event-based interface status.
61 Number of nf_conntrack entries.
64 Number of context switches done by the operating system.
67 CPU utilization: Time spent in the system, user, nice, idle, and related
71 CPU frequency (For laptops with speed step or a similar technology)
74 CPU sleep: Time spent in suspend (For mobile devices which enter suspend automatically)
77 Parse statistics from websites using regular expressions.
80 Retrieves JSON data via cURL and parses it according to user
84 Retrieves XML data via cURL and parses it according to user
88 Executes SQL statements on various databases and interprets the returned
92 Mountpoint usage (Basically the values `df(1)' delivers)
95 Disk utilization: Sectors read/written, number of read/write actions,
96 average time an IO-operation took to complete.
99 DNS traffic: Query types, response codes, opcodes and traffic/octets
103 Collect DPDK interface statistics.
104 See docs/BUILD.dpdkstat.md for detailed build instructions.
106 This plugin should be compiled with compiler defenses enabled, for
107 example -fstack-protector.
110 Collect individual drbd resource statistics.
113 Email statistics: Count, traffic, spam scores and checks.
114 See collectd-email(5).
117 Amount of entropy available to the system.
120 Network interface card statistics.
123 Values gathered by a custom program or script.
124 See collectd-exec(5).
127 File handles statistics.
130 Count the number of files in directories.
133 Linux file-system based caching framework statistics.
136 Receive multicast traffic from Ganglia instances.
139 Monitor gps related data through gpsd.
142 Monitor NVIDIA GPU statistics available through NVML.
145 Hard disk temperatures using hddtempd.
148 Report the number of used and free hugepages. More info on
149 hugepages can be found here:
150 https://www.kernel.org/doc/Documentation/vm/hugetlbpage.txt.
152 This plugin should be compiled with compiler defenses enabled, for
153 example -fstack-protector.
156 The intel_pmu plugin reads performance counters provided by the Linux
157 kernel perf interface. The plugin uses jevents library to resolve named
158 events to perf events and access perf interface.
161 The intel_rdt plugin collects information provided by monitoring features
162 of Intel Resource Director Technology (Intel(R) RDT) like Cache Monitoring
163 Technology (CMT), Memory Bandwidth Monitoring (MBM). These features
164 provide information about utilization of shared resources like last level
165 cache occupancy, local memory bandwidth usage, remote memory bandwidth
166 usage, instructions per clock.
167 <https://01.org/packet-processing/cache-monitoring-technology-memory-bandwidth-monitoring-cache-allocation-technology-code-and-data>
170 Interface traffic: Number of octets, packets and errors for each
174 IPC counters: semaphores used, number of allocated segments in shared
178 IPMI (Intelligent Platform Management Interface) sensors information.
181 Iptables' counters: Number of bytes that were matched by a certain
185 IPVS connection statistics (number of connections, octets and packets
186 for each service and destination).
187 See http://www.linuxvirtualserver.org/software/index.html.
190 IRQ counters: Frequency in which certain interrupts occur.
193 Integrates a `Java Virtual Machine' (JVM) to execute plugins in Java
195 See docs/BUILD.java.md for detailed build instructions.
198 System load average over the last 1, 5 and 15 minutes.
201 Detailed CPU statistics of the “Logical Partitions” virtualization
202 technique built into IBM's POWER processors.
205 The Lua plugin implements a Lua interpreter into collectd. This
206 makes it possible to write plugins in Lua which are executed by
207 collectd without the need to start a heavy interpreter every interval.
208 See collectd-lua(5) for details.
211 Queries very detailed usage statistics from wireless LAN adapters and
212 interfaces that use the Atheros chipset and the MadWifi driver.
215 Motherboard sensors: temperature, fan speed and voltage information,
219 Monitor machine check exceptions (hardware errors detected by hardware
220 and reported to software) reported by mcelog and generate appropriate
221 notifications when machine check exceptions are detected.
224 Linux software-RAID device information (number of active, failed, spare
228 Query and parse data from a memcache daemon (memcached).
231 Statistics of the memcached distributed caching system.
232 <http://www.danga.com/memcached/>
235 Memory utilization: Memory occupied by running processes, page cache,
236 buffer cache and free.
239 Collects CPU usage, memory usage, temperatures and power consumption from
240 Intel Many Integrated Core (MIC) CPUs.
243 Reads values from Modbus/TCP enabled devices. Supports reading values
244 from multiple "slaves" so gateway devices can be used.
247 Information provided by serial multimeters, such as the `Metex
251 MySQL server statistics: Commands issued, handlers triggered, thread
252 usage, query cache utilization and traffic/octets sent and received.
255 Plugin to query performance values from a NetApp storage system using the
256 “Manage ONTAP” SDK provided by NetApp.
259 Very detailed Linux network interface and routing statistics. You can get
260 (detailed) information on interfaces, qdiscs, classes, and, if you can
261 make use of it, filters.
264 Receive values that were collected by other hosts. Large setups will
265 want to collect the data on one dedicated machine, and this is the
266 plugin of choice for that.
269 NFS Procedures: Which NFS command were called how often.
272 Collects statistics from `nginx' (speak: engine X), a HTTP and mail
276 NTP daemon statistics: Local clock drift, offset to peers, etc.
279 Information about Non-Uniform Memory Access (NUMA).
282 Network UPS tools: UPS current, voltage, power, charge, utilisation,
283 temperature, etc. See upsd(8).
286 Queries routing information from the “Optimized Link State Routing”
289 - onewire (EXPERIMENTAL!)
290 Read onewire sensors using the owcapu library of the owfs project.
291 Please read in collectd.conf(5) why this plugin is experimental.
294 Read monitoring information from OpenLDAP's cn=Monitor subtree.
297 RX and TX of each client in openvpn-status.log (status-version 2).
298 <http://openvpn.net/index.php/documentation/howto.html>
301 Query data from an Oracle database.
304 The plugin monitors the link status of Open vSwitch (OVS) connected
305 interfaces, dispatches the values to collectd and sends the notification
306 whenever the link state change occurs in the OVS database. It requires
307 YAJL library to be installed.
308 Detailed instructions for installing and setting up Open vSwitch, see
310 <http://openvswitch.org/support/dist-docs/INSTALL.rst.html>
313 The plugin collects the statistics of OVS connected bridges and
314 interfaces. It requires YAJL library to be installed.
315 Detailed instructions for installing and setting up Open vSwitch, see
317 <http://openvswitch.org/support/dist-docs/INSTALL.rst.html>
320 Read errors from PCI Express Device Status and AER extended capabilities.
321 <https://www.design-reuse.com/articles/38374/pcie-error-logging-and-handling-on-a-typical-soc.html>
324 The perl plugin implements a Perl-interpreter into collectd. You can
325 write your own plugins in Perl and return arbitrary values using this
326 API. See collectd-perl(5).
329 Query statistics from BSD's packet filter "pf".
332 Receive and dispatch timing values from Pinba, a profiling extension for
336 Network latency: Time to reach the default gateway or another given
340 PostgreSQL database statistics: active server connections, transaction
341 numbers, block IO, table row manipulations.
344 PowerDNS name server statistics.
347 Process counts: Number of running, sleeping, zombie, ... processes.
350 Listens for process starts and exits via netlink.
353 Counts various aspects of network protocols such as IP, TCP, UDP, etc.
356 The python plugin implements a Python interpreter into collectd. This
357 makes it possible to write plugins in Python which are executed by
358 collectd without the need to start a heavy interpreter every interval.
359 See collectd-python(5) for details.
362 The redis plugin gathers information from a Redis server, including:
363 uptime, used memory, total connections etc.
366 Query interface and wireless registration statistics from RouterOS.
369 RRDtool caching daemon (RRDcacheD) statistics.
372 System sensors, accessed using lm_sensors: Voltages, temperatures and
376 RX and TX of serial interfaces. Linux only; needs root privileges.
379 Uses libsigrok as a backend, allowing any sigrok-supported device
380 to have its measurements fed to collectd. This includes multimeters,
381 sound level meters, thermometers, and much more.
384 Collect SMART statistics, notably load cycle count, temperature
388 Read values from SNMP (Simple Network Management Protocol) enabled
389 network devices such as switches, routers, thermometers, rack monitoring
390 servers, etc. See collectd-snmp(5).
393 Acts as a StatsD server, reading values sent over the network from StatsD
394 clients and calculating rates and other aggregates out of these values.
397 Listens to rsyslog events and submits matched values.
400 Pages swapped out onto hard disk or whatever is called `swap' by the OS..
403 Parse table-like structured files.
406 Follows (tails) log files, parses them by lines and submits matched
410 Follows (tails) files in CSV format, parses each line and submits
414 Bytes and operations read and written on tape devices. Solaris only.
417 Number of TCP connections to specific local and remote ports.
420 TeamSpeak2 server statistics.
423 Plugin to read values from `The Energy Detective' (TED).
426 Linux ACPI thermal zone information.
429 Reads the number of records and file size from a running Tokyo Tyrant
433 Reads CPU frequency and C-state residency on modern Intel
434 turbo-capable processors.
437 System uptime statistics.
440 Users currently logged in.
443 Various statistics from Varnish, an HTTP accelerator.
446 CPU, memory, disk and network I/O statistics from virtual machines.
449 Virtual memory statistics, e.g. the number of page-ins/-outs or the
450 number of pagefaults.
453 System resources used by Linux VServers.
454 See <http://linux-vserver.org/>.
457 Link quality of wireless cards. Linux only.
460 XEN Hypervisor CPU stats.
463 Bitrate and frequency of music played with XMMS.
466 Statistics for ZFS' “Adaptive Replacement Cache” (ARC).
469 Measures the percentage of cpu load per container (zone) under Solaris 10
473 Read data from Zookeeper's MNTR command.
475 * Output can be written or sent to various destinations by the following
479 Sends JSON-encoded data to an Advanced Message Queuing Protocol (AMQP)
480 0.9.1 server, such as RabbitMQ.
483 Sends JSON-encoded data to an Advanced Message Queuing Protocol (AMQP)
484 1.0 server, such as Qpid Dispatch Router or Apache Artemis Broker.
487 Write to comma separated values (CSV) files. This needs lots of
488 diskspace but is extremely portable and can be analysed with almost
489 every program that can analyse anything. Even Microsoft's Excel..
492 Send and receive values over the network using the gRPC framework.
495 It's possible to implement write plugins in Lua using the Lua
496 plugin. See collectd-lua(5) for details.
499 Publishes and subscribes to MQTT topics.
502 Send the data to a remote host to save the data somehow. This is useful
503 for large setups where the data should be saved by a dedicated machine.
506 Of course the values are propagated to plugins written in Perl, too, so
507 you can easily do weird stuff with the plugins we didn't dare think of
508 ;) See collectd-perl(5).
511 It's possible to implement write plugins in Python using the python
512 plugin. See collectd-python(5) for details.
515 Output to round-robin-database (RRD) files using the RRDtool caching
516 daemon (RRDcacheD) - see rrdcached(1). That daemon provides a general
517 implementation of the caching done by the `rrdtool' plugin.
520 Output to round-robin-database (RRD) files using librrd. See rrdtool(1).
521 This is likely the most popular destination for such values. Since
522 updates to RRD-files are somewhat expensive this plugin can cache
523 updates to the files and write a bunch of updates at once, which lessens
527 Receives and handles queries from SNMP master agent and returns the data
528 collected by read plugins. Handles requests only for OIDs specified in
529 configuration file. To handle SNMP queries the plugin gets data from
530 collectd and translates requested values from collectd's internal format
534 One can query the values from the unixsock plugin whenever they're
535 needed. Please read collectd-unixsock(5) for a description on how that's
539 Sends data to Carbon, the storage layer of Graphite using TCP or UDP. It
540 can be configured to avoid logging send errors (especially useful when
544 Sends the values collected by collectd to a web-server using HTTP POST
545 requests. The transmitted data is either in a form understood by the
546 Exec plugin or formatted in JSON.
549 Sends data to Apache Kafka, a distributed queue.
552 Writes data to the log
555 Sends data to MongoDB, a NoSQL database.
558 Publish values using an embedded HTTP server, in a format compatible
559 with Prometheus' collectd_exporter.
562 Sends the values to a Redis key-value database server.
565 Sends data to Riemann, a stream processing and monitoring system.
568 Sends data to Sensu, a stream processing and monitoring system, via the
569 Sensu client local TCP socket.
572 Sends data in syslog format, using TCP, where the message
573 contains the metric in human or JSON format.
576 Sends data OpenTSDB, a scalable no master, no shared state time series
579 * Logging is, as everything in collectd, provided by plugins. The following
580 plugins keep us informed about what's going on:
583 Writes log messages to a file or STDOUT/STDERR.
586 Log messages are propagated to plugins written in Perl as well.
587 See collectd-perl(5).
590 It's possible to implement log plugins in Python using the python plugin.
591 See collectd-python(5) for details.
594 Logs to the standard UNIX logging mechanism, syslog.
597 Writes log messages formatted as logstash JSON events.
599 * Notifications can be handled by the following plugins:
602 Send a desktop notification to a notification daemon, as defined in
603 the Desktop Notification Specification. To actually display the
604 notifications, notification-daemon is required.
605 See http://www.galago-project.org/specs/notification/.
608 Send an E-mail with the notification message to the configured
612 Submit notifications as passive check results to a local nagios instance.
615 Execute a program or script to handle the notification.
616 See collectd-exec(5).
619 Writes the notification message to a file or STDOUT/STDERR.
622 Send the notification to a remote host to handle it somehow.
625 Notifications are propagated to plugins written in Perl as well.
626 See collectd-perl(5).
629 It's possible to implement notification plugins in Python using the
630 python plugin. See collectd-python(5) for details.
632 * Value processing can be controlled using the "filter chain" infrastructure
633 and "matches" and "targets". The following plugins are available:
635 - match_empty_counter
636 Match counter values which are currently zero.
639 Match values using a hash function of the hostname.
642 Match values by their identifier based on regular expressions.
645 Match values with an invalid timestamp.
648 Select values by their data sources' values.
650 - target_notification
651 Create and dispatch a notification.
654 Replace parts of an identifier using regular expressions.
657 Scale (multiply) values by an arbitrary value.
660 Set (overwrite) entire parts of an identifier.
662 * Miscellaneous plugins:
665 Selects multiple value lists based on patterns or regular expressions
666 and creates new aggregated values lists from those.
669 Checks values against configured thresholds and creates notifications if
670 values are out of bounds. See collectd-threshold(5) for details.
673 Sets the hostname to a unique identifier. This is meant for setups
674 where each client may migrate to another physical host, possibly going
675 through one or more name changes in the process.
677 * Performance: Since collectd is running as a daemon it doesn't spend much
678 time starting up again and again. With the exception of the exec plugin no
679 processes are forked. Caching in output plugins, such as the rrdtool and
680 network plugins, makes sure your resources are used efficiently. Also,
681 since collectd is programmed multithreaded it benefits from hyper-threading
682 and multicore processors and makes sure that the daemon isn't idle if only
683 one plugin waits for an IO-operation to complete.
685 * Once set up, hardly any maintenance is necessary. Setup is kept as easy
686 as possible and the default values should be okay for most users.
692 * collectd's configuration file can be found at `sysconfdir'/collectd.conf.
693 Run `collectd -h' for a list of built-in defaults. See `collectd.conf(5)'
694 for a list of options and a syntax description.
696 * When the `csv' or `rrdtool' plugins are loaded they'll write the values to
697 files. The usual place for these files is beneath `/var/lib/collectd'.
699 * When using some of the plugins, collectd needs to run as user root, since
700 only root can do certain things, such as craft ICMP packages needed to ping
701 other hosts. collectd should NOT be installed setuid root since it can be
702 used to overwrite valuable files!
704 * Sample scripts to generate graphs reside in `contrib/' in the source
705 package or somewhere near `/usr/share/doc/collectd' in most distributions.
706 Please be aware that those script are meant as a starting point for your
707 own experiments.. Some of them require the `RRDs' Perl module.
708 (`librrds-perl' on Debian) If you have written a more sophisticated
709 solution please share it with us.
711 * The RRAs of the automatically created RRD files depend on the `step'
712 and `heartbeat' settings given. If change these settings you may need to
713 re-create the files, losing all data. Please be aware of that when changing
714 the values and read the rrdtool(1) manpage thoroughly.
717 collectd and chkrootkit
718 -----------------------
720 If you are using the `dns' plugin chkrootkit(1) will report collectd as a
721 packet sniffer ("<iface>: PACKET SNIFFER(/usr/sbin/collectd[<pid>])"). The
722 plugin captures all UDP packets on port 53 to analyze the DNS traffic. In
723 this case, collectd is a legitimate sniffer and the report should be
724 considered to be a false positive. However, you might want to check that
725 this really is collectd and not some other, illegitimate sniffer.
731 To compile collectd from source you will need:
733 * Usual suspects: C compiler, linker, preprocessor, make, ...
735 collectd makes use of some common C99 features, e.g. compound literals and
736 mixed declarations, and therefore requires a C99 compatible compiler.
738 On Debian and Ubuntu, the "build-essential" package should pull in
739 everything that's necessary.
741 * A POSIX-threads (pthread) implementation.
742 Since gathering some statistics is slow (network connections, slow devices,
743 etc) collectd is parallelized. The POSIX threads interface is being
744 used and should be found in various implementations for hopefully all
747 * When building from the Git repository, flex (tokenizer) and bison (parser
748 generator) are required. Release tarballs include the generated files – you
749 don't need these packages in that case.
751 * aerotools-ng (optional)
752 Used by the `aquaero' plugin. Currently, the `libaquaero5' library, which
753 is used by the `aerotools-ng' toolkit, is not compiled as a shared object
754 nor does it feature an installation routine. Therefore, you need to point
755 collectd's configure script at the source directory of the `aerotools-ng'
757 <https://github.com/lynix/aerotools-ng>
759 * CoreFoundation.framework and IOKit.framework (optional)
760 For compiling on Darwin in general and the `apple_sensors' plugin in
762 <http://developer.apple.com/corefoundation/>
765 Used by the `gpu_nvidia' plugin
766 <https://developer.nvidia.com/cuda-downloads>
768 * libatasmart (optional)
769 Used by the `smart' plugin.
770 <http://git.0pointer.de/?p=libatasmart.git>
773 The `turbostat' plugin can optionally build Linux Capabilities support,
774 which avoids full privileges requirement (aka. running as root) to read
776 <http://sites.google.com/site/fullycapable/>
778 * libclntsh (optional)
779 Used by the `oracle' plugin.
781 * libhiredis (optional)
782 Used by the redis plugin. Please note that you require a 0.10.0 version
783 or higher. <https://github.com/redis/hiredis>
786 If you want to use the `apache', `ascent', `bind', `curl', `curl_json',
787 `curl_xml', `nginx', or `write_http' plugin.
788 <http://curl.haxx.se/>
791 Used by the `dbi' plugin to connect to various databases.
792 <http://libdbi.sourceforge.net/>
794 * libesmtp (optional)
795 For the `notify_email' plugin.
796 <http://www.stafford.uklinux.net/libesmtp/>
798 * libganglia (optional)
799 Used by the `gmond' plugin to process data received from Ganglia.
800 <http://ganglia.info/>
803 Used by the `grpc' plugin. gRPC requires a C++ compiler supporting the
807 * libgcrypt (optional)
808 Used by the `network' plugin for encryption and authentication.
809 <http://www.gnupg.org/>
812 Used by the `gps' plugin.
813 <http://developer.berlios.de/projects/gpsd/>
815 * libi2c-dev (optional)
816 Used for the plugin `barometer', provides just the i2c-dev.h header file
817 for user space i2c development.
820 For querying iptables counters.
821 <http://netfilter.org/>
823 * libjevents (optional)
824 The jevents library is used by the `intel_pmu' plugin to access the Linux
825 kernel perf interface.
826 Note: the library should be build with -fPIC flag to be linked with
827 intel_pmu shared object correctly.
828 <https://github.com/andikleen/pmu-tools>
831 Library that encapsulates the `Java Virtual Machine' (JVM). This library is
832 used by the `java' plugin to execute Java bytecode.
833 See docs/BUILD.java.md for detailed build instructions.
834 <http://openjdk.java.net/> (and others)
837 Used by the `openldap' plugin.
838 <http://www.openldap.org/>
841 Used by the `lua' plugin. Currently, Lua 5.1 and later are supported.
842 <https://www.lua.org/>
844 * libmemcached (optional)
845 Used by the `memcachec' plugin to connect to a memcache daemon.
846 <http://tangent.org/552/libmemcached.html>
848 * libmicrohttpd (optional)
849 Used by the write_prometheus plugin to run an http daemon.
850 <http://www.gnu.org/software/libmicrohttpd/>
853 Used by the `netlink' plugin.
854 <http://www.netfilter.org/projects/libmnl/>
856 * libmodbus (optional)
857 Used by the `modbus' plugin to communicate with Modbus/TCP devices. The
858 `modbus' plugin works with version 2.0.3 of the library – due to frequent
859 API changes other versions may or may not compile cleanly.
860 <http://www.libmodbus.org/>
862 * libmysqlclient (optional)
863 Unsurprisingly used by the `mysql' plugin.
864 <http://dev.mysql.com/>
866 * libnetapp (optional)
867 Required for the `netapp' plugin.
868 This library is part of the “Manage ONTAP SDK” published by NetApp.
870 * libnetsnmp (optional)
871 For the `snmp' and 'snmp_agent' plugins.
872 <http://www.net-snmp.org/>
874 * libnetsnmpagent (optional)
875 Required for the 'snmp_agent' plugin.
876 <http://www.net-snmp.org/>
878 * libnotify (optional)
879 For the `notify_desktop' plugin.
880 <http://www.galago-project.org/>
882 * libopenipmi (optional)
883 Used by the `ipmi' plugin to prove IPMI devices.
884 <http://openipmi.sourceforge.net/>
886 * liboping (optional)
887 Used by the `ping' plugin to send and receive ICMP packets.
888 <http://octo.it/liboping/>
890 * libowcapi (optional)
891 Used by the `onewire' plugin to read values from onewire sensors (or the
893 <http://www.owfs.org/>
896 Used to capture packets by the `dns' plugin.
897 <http://www.tcpdump.org/>
899 * libperfstat (optional)
900 Used by various plugins to gather statistics under AIX.
903 Obviously used by the `perl' plugin. The library has to be compiled with
904 ithread support (introduced in Perl 5.6.0).
905 <http://www.perl.org/>
908 The PostgreSQL C client library used by the `postgresql' plugin.
909 <http://www.postgresql.org/>
912 The PQoS library for Intel(R) Resource Director Technology used by the
914 <https://github.com/01org/intel-cmt-cat>
916 * libprotobuf, protoc 3.0+ (optional)
917 Used by the `grpc' plugin to generate service stubs and code to handle
918 network packets of collectd's protobuf-based network protocol.
919 <https://developers.google.com/protocol-buffers/>
921 * libprotobuf-c, protoc-c (optional)
922 Used by the `pinba' plugin to generate a parser for the network packets
923 sent by the Pinba PHP extension.
924 <http://code.google.com/p/protobuf-c/>
926 * libpython (optional)
927 Used by the `python' plugin. Currently, Python 2.6 and later and Python 3
929 <http://www.python.org/>
931 * libqpid-proton (optional)
932 Used by the `amqp1' plugin for AMQP 1.0 connections, for example to
934 <http://qpid.apache.org/>
936 * librabbitmq (optional; also called “rabbitmq-c”)
937 Used by the `amqp' plugin for AMQP 0.9.1 connections, for example to
939 <http://hg.rabbitmq.com/rabbitmq-c/>
941 * librdkafka (optional; also called “rdkafka”)
942 Used by the `write_kafka' plugin for producing messages and sending them
944 <https://github.com/edenhill/librdkafka>
946 * librouteros (optional)
947 Used by the `routeros' plugin to connect to a device running `RouterOS'.
948 <http://octo.it/librouteros/>
951 Used by the `rrdtool' and `rrdcached' plugins. The latter requires RRDtool
952 client support which was added after version 1.3 of RRDtool. Versions 1.0,
953 1.2 and 1.3 are known to work with the `rrdtool' plugin.
954 <http://oss.oetiker.ch/rrdtool/>
956 * librt, libsocket, libkstat, libdevinfo (optional)
957 Various standard Solaris libraries which provide system functions.
958 <http://developers.sun.com/solaris/>
960 * libsensors (optional)
961 To read from `lm_sensors', see the `sensors' plugin.
962 <http://www.lm-sensors.org/>
964 * libsigrok (optional)
965 Used by the `sigrok' plugin. In addition, libsigrok depends on glib,
966 libzip, and optionally (depending on which drivers are enabled) on
967 libusb, libftdi and libudev.
969 * libstatgrab (optional)
970 Used by various plugins to collect statistics on systems other than Linux
972 <http://www.i-scream.org/libstatgrab/>
974 * libtokyotyrant (optional)
975 Used by the `tokyotyrant' plugin.
976 <http://1978th.net/tokyotyrant/>
978 * libupsclient/nut (optional)
979 For the `nut' plugin which queries nut's `upsd'.
980 <http://networkupstools.org/>
983 Collect statistics from virtual machines.
984 <http://libvirt.org/>
987 Parse XML data. This is needed for the `ascent', `bind', `curl_xml' and
989 <http://xmlsoft.org/>
992 Used by the `xencpu' plugin.
993 <http://xenbits.xensource.com/>
996 <http://www.xmms.org/>
999 Parse JSON data. This is needed for the `ceph', `curl_json', 'ovs_events',
1000 'ovs_stats' and `log_logstash' plugins.
1001 <http://github.com/lloyd/yajl>
1003 * libvarnish (optional)
1004 Fetches statistics from a Varnish instance. This is needed for the
1006 <http://varnish-cache.org>
1008 * riemann-c-client (optional)
1009 For the `write_riemann' plugin.
1010 <https://github.com/algernon/riemann-c-client>
1012 Configuring / Compiling / Installing
1013 ------------------------------------
1015 To configure, build and install collectd with the default settings, run
1016 `./configure && make && make install'. For a complete list of configure
1017 options and their description, run `./configure --help'.
1019 By default, the configure script will check for all build dependencies and
1020 disable all plugins whose requirements cannot be fulfilled (any other plugin
1021 will be enabled). To enable a plugin, install missing dependencies (see
1022 section `Prerequisites' above) and rerun `configure'. If you specify the
1023 `--enable-<plugin>' configure option, the script will fail if the depen-
1024 dencies for the specified plugin are not met. In that case you can force the
1025 plugin to be built using the `--enable-<plugin>=force' configure option.
1026 This will most likely fail though unless you're working in a very unusual
1027 setup and you really know what you're doing. If you specify the
1028 `--disable-<plugin>' configure option, the plugin will not be built. If you
1029 specify the `--enable-all-plugins' or `--disable-all-plugins' configure
1030 options, all plugins will be enabled or disabled respectively by default.
1031 Explicitly enabling or disabling a plugin overwrites the default for the
1032 specified plugin. These options are meant for package maintainers and should
1033 not be used in everyday situations.
1035 By default, collectd will be installed into `/opt/collectd'. You can adjust
1036 this setting by specifying the `--prefix' configure option - see INSTALL for
1037 details. If you pass DESTDIR=<path> to `make install', <path> will be
1038 prefixed to all installation directories. This might be useful when creating
1039 packages for collectd.
1041 Generating the configure script
1042 -------------------------------
1044 Collectd ships with a `build.sh' script to generate the `configure'
1045 script shipped with releases.
1047 To generate the `configure` script, you'll need the following dependencies:
1056 The `build.sh' script takes no arguments.
1060 -----------------------------------------------
1062 Collectd can be built on Windows using Cygwin, and the result is a binary that
1063 runs natively on Windows. That is, Cygwin is only needed for building, not running,
1066 You will need to install the following Cygwin packages:
1073 - mingw64-x86_64-dlfcn
1074 - mingw64-x86_64-gcc-core
1075 - mingw64-x86_64-zlib
1078 To build, just run the `build.sh' script in your Cygwin terminal. By default, it installs
1079 to "C:/Program Files/collectd". You can change the location by setting the INSTALL_DIR
1082 $ export INSTALL_DIR="C:/some/other/install/directory"
1087 $ INSTALL_DIR="C:/some/other/install/directory" ./build.sh
1093 To compile correctly collectd needs to be able to initialize static
1094 variables to NAN (Not A Number). Some C libraries, especially the GNU
1095 libc, have a problem with that.
1097 Luckily, with GCC it's possible to work around that problem: One can define
1098 NAN as being (0.0 / 0.0) and `isnan' as `f != f'. However, to test this
1099 ``implementation'' the configure script needs to compile and run a short
1100 test program. Obviously running a test program when doing a cross-
1101 compilation is, well, challenging.
1103 If you run into this problem, you can use the `--with-nan-emulation'
1104 configure option to force the use of this implementation. We can't promise
1105 that the compiled binary actually behaves as it should, but since NANs
1106 are likely never passed to the libm you have a good chance to be lucky.
1108 Likewise, collectd needs to know the layout of doubles in memory, in order
1109 to craft uniform network packets over different architectures. For this, it
1110 needs to know how to convert doubles into the memory layout used by x86. The
1111 configure script tries to figure this out by compiling and running a few
1112 small test programs. This is of course not possible when cross-compiling.
1113 You can use the `--with-fp-layout' option to tell the configure script which
1114 conversion method to assume. Valid arguments are:
1116 * `nothing' (12345678 -> 12345678)
1117 * `endianflip' (12345678 -> 87654321)
1118 * `intswap' (12345678 -> 56781234)
1124 Please use GitHub to report bugs and submit pull requests:
1125 <https://github.com/collectd/collectd/>.
1126 See CONTRIBUTING.md for details.
1128 For questions, development information and basically all other concerns please
1129 send an email to collectd's mailing list at
1130 <list at collectd.org>.
1132 For live discussion and more personal contact visit us in IRC, we're in
1133 channel #collectd on freenode.
1139 Florian octo Forster <octo at collectd.org>,
1140 Sebastian tokkee Harl <sh at tokkee.org>,
1141 and many contributors (see `AUTHORS').