1 2007-12-28, Version 4.2.3
2 * sensors plugin: Updated the plugin to build and work with version 3
3 of the libsensors library.
5 2007-12-15, Version 4.2.2
6 * nginx plugin: Incorrect comparison of strings lead to a segfault
7 when using the plugin. Thanks to Saulius Grigaliunas for fixing
9 * logfile plugin: The config option `Timestamp' was handled
10 incorrectly and basically always active. Thanks to Luke Heberling
13 2007-11-08, Version 4.2.1
14 * tcpconns plugin: Don't complain about a missing file if IPv6 is not
16 * snmp plugin: Fix a memory leak.
18 2007-10-27, Version 4.2.0
19 * collectd: The new config option `Include' lets you include other
20 configfiles and thus split up your config into smaller parts. This
21 may be especially interesting for the snmp plugin to keep the data
22 definitions separate from the host definitions.
23 * ipvs plugin: The new `ipvs' plugin collects IPVS connection statistics
24 (number of connections, octets and packets for each service and
25 destination). Thanks to Sebastian Harl for this plugin.
26 * memcached plugin: The new `memcached' plugin connects to a memcached
27 daemon process and collects statistics of this distributed caching
28 system. Thanks to Antony Dovgal for contributing this plugin.
29 * nginx plugin: The new `nginx' plugin reads the status page of an
30 nginx daemon and saves the handled connections and requests.
31 * perl plugin: Many changes, including the added `EnableDebugger'
32 config option which lets you debug your Perl plugins more easily.
33 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
34 be more thread-safe otherwise by locking calls to the library.
35 * snmp plugin: Added the options `Scale' and `Shift' to Data-blocks to
36 correct the values returned by SNMP-agents. If a <data> block is
37 defined as `table' the instance is now optional. The sequence number
38 is used as the type-instance in this case. The new `InstancePrefix'
39 option allows to add arbitrary prefixes to the type-instance.
40 * tcpconns plugin: The new `tcpconns' plugin collects the number of
41 certain TCP connections and what state they're in. This can be used
42 to see how many connections your FTP server has to handle or how
43 many outgoing connections your mailserver has open.
45 2007-12-27, Version 4.1.5
46 * rrdtool plugin: Fix a memory leak that only occured in very-low-
48 * sensors plugin: Updated the plugin to build and work with version 3
49 of the libsensors library.
51 2007-11-08, Version 4.1.4
52 * Build system: Improve detection of the rrd library, especially if
53 it's in a non-standard location.
54 * Build system: A bug when parsing the argument for
55 `--with-libnetsnmp' has been fixed.
56 * collectd: Implement `strerror_r' if the libc doesn't provide it.
57 * rrdtool plugin: Fix a bug in the shutdown sequence that might cause
58 a deadlock or delay when shutting down the daemon.
59 * snmp plugin: Fix a memory leak.
61 2007-10-24, Version 4.1.3
62 * collectd: A build issue under Solaris has been resolved by renaming
64 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
65 be more thread-safe otherwise by locking calls to the library.
67 2007-09-28, Version 4.1.2
68 * apcups plugin: Fix reporting of the `load percent' data.
69 * wireless plugin: Correct the handling of cards returning signal and
70 noise quality as percentage.
71 * perl plugin: Fix a possible buffer overflow in get_module_name().
72 * build system: Further improve the detection of libraries.
73 * netlink plugin: Build issues under some older versions of the Linux
74 includes (i. e. Debian Sarge) have been fixed.
75 * snmp plugin: Fix a potential segfault when a host times out. Add
76 support for the `timeticks' type.
78 2007-09-12, Version 4.1.1
79 * Build system: The detection of `libnetlink' has been improved.
80 * collectd: The documentation has been fixed in numerous places.
81 * exec plugin: Setting the group under which to run a program has been
83 * collectd: The `sstrerror' function was improved to work correctly
84 with the broken GNU version of `strerror_r'.
85 * collectd: Write an error message to STDERR when loading of a plugin
87 * apcups plugin: Fix the `types' used to submit the values: They still
88 has an `apcups_' prefix which doesn't work anymore.
89 * rrdtool plugin: Create new RRD-files with the `begin' time set to
90 whatever the client thinks is `now'..
92 2007-09-01, Version 4.1.0
93 * Build system: The build system has been changed to automatically
94 disable all plugins, which are missing dependencies. The dependency
95 checking has been removed from the plugins themselves to remove
97 * Flexible interval: The interval of collected data is now sent along
98 with the data itself over the network, so that the interval-settings
99 of server and clients no longer needs to match.
100 * netlink plugin: The new `netlink' plugin connects to the Linux
101 kernel using a netlink socket and uses it to query information about
102 interfaces, qdiscs and classes.
103 * rrdtool plugin: The cache is now dumped to disk in an extra thread
104 to not block data collection.
105 * snmp plugin: The new `snmp' plugin can read values from SNMP enabled
106 network devices, such as switches, routers, thermometers, rack
107 monitoring servers, etc. The collectd-snmp(5) manpage documents this
109 * unixsock plugin: Added the `LISTVAL' command.
110 * xmms plugin: The new `xmms' plugin graphs the bitrate and frequency
111 of music played with xmms.
113 2007-09-28, Version 4.0.9
114 * apcups plugin: Fix reporting of the `load percent' data.
115 * wireless plugin: Correct the handling of cards returning signal and
116 noise quality as percentage.
117 * perl plugin: Fix a possible buffer overflow in get_module_name().
119 2007-09-12, Version 4.0.8
120 * collectd: The `sstrerror' function was improved to work correctly
121 with the broken GNU version of `strerror_r'.
122 * collectd: Write an error message to STDERR when loading of a plugin
124 * apcups plugin: Fix the `types' used to submit the values: They still
125 has an `apcups_' prefix which doesn't work anymore.
126 * rrdtool plugin: Create new RRD-files with the `begin' time set to
127 whatever the client thinks is `now'..
129 2007-08-26, Version 4.0.7
130 * documentation: Some typos have been fixed and some information has
132 * build system: Many fixes for detecting libraries in unusual places,
133 such as on RedHat systems. The affected libraries are `libcurl',
134 `libmysql', and `libupsclient'.
135 * network plugin: Allow the `Port' option to be specified as a number
136 (i. e. without quotes).
137 * nut plugin: A fix allows linking the nut plugin against
138 libupsclient, version >= 2.2.0.
139 * processes plugin: Fix a potential segmentation fault.
141 2007-07-30, Version 4.0.6
142 * sensors plugin: Fix the ignorelist functionality: Only the `type
143 instance' was used to match against the list, but the documentation
144 told otherwise. This release fixes the code, so it complies with the
146 * syslog plugin: Call `openlog' right when the plugin is loaded, so
147 configuration messages will end up in the logging facility.
148 * conrtib/fedora: The contributed specfile for Fedora has been
151 2007-07-05, Version 4.0.5
152 * Portability: More fixes for OpenBSD have been included.
154 2007-06-24, Version 4.0.4
155 * cpu plugin: Fixed the Solaris code.
156 * dns plugin: Fixed a build issue for OpenBSD.
157 * interface plugin: Fixed the Solaris code.
158 * load plugin: Fixed the alternative `/proc' Linux code.
159 * memory plugin: Fixed the Solaris code.
160 * oconfig: Don't require `-lfl' anymore.
162 2007-06-19, Version 4.0.3
163 * cpu plugin: Fix the Darwin / Mac OS X code.
164 * ping plugin: Use the return value of `getpid', not its address.
165 * csv, rrdtool plugin: Fixed a bug that prevented an buffer to be
166 initialized correctly.
167 * configure: Added `--with-nan-emulation' to aid cross compilation.
169 2007-06-12, Version 4.0.2
170 * hddtemp and ntpd plugin: Corrected the parsing of port numbers when
171 they're given in numerically form.
173 2007-06-07, Version 4.0.1
174 * iptables plugin: A bug in the configuration routine has been fixed.
175 Setting a comment in the configfile will no longer cause a
178 2007-06-03, Version 4.0.0
179 * collectd: The plugin-infrastructure has been changed to allow for
180 more types of plugins, namely `write' and `log' plugins.
181 * collectd: The read-function has been changed to read many plugins in
182 parallel, using threads. Thus, plugins generally need to use
183 thread-safe functions from now on.
184 * collectd: The '-t' command line options allows to perform syntax tests
185 of the configuration file and exit immediately.
186 * csv plugin: The new `csv' plugin handles output to `comma separated
188 * rrdtool plugin: The new `rrdtool' plugin handles output to
189 RRD-files. Data can be cached to combine multiple updates into one
190 write to increase IO-performance.
191 * network plugin: The new `network' plugin handles IO via the network.
192 It implements a different, much more extensible protocol which can
193 combine many values in one packet, decreasing the number of UDP-
194 packets being sent. It can read from and send to the network and
195 with the appropriate configuration even forward packets to other
197 * unixsock plugin: The new `unixsock' plugin provides an interface to
198 communicate with the daemon while it is running. Right now the
199 commands `GETVAL' and `PUTVAL' are implemented, but more are to
201 * perl plugin: The new `perl' plugin allows you to write extensions
202 for collectd in the scripting-language Perl.
203 * logfile plugin: The new `logfile' plugin writes logmessages to files
205 * syslog plugin: The new `syslog' plugin sends logmessages to the
206 system's syslog daemon.
207 * entropy plugin: The new `entropy' plugin collects the amount of
208 entropy currently being available to the system.
209 * exec plugin: The new `exec' plugin forks child processes and reads
210 back values provided by the forked processes.
211 * iptables plugin: The new `iptables' plugin reads counters from
212 iptables rules. Thanks to Sjoerd van der Berg for contributing this
214 * irq plugin: The new `irq' plugin collects the IRQ-counters. Thanks
215 to Peter Holik for contributing this plugin.
216 * nut plugin: The new `nut' plugin connects the upsd of the `network
217 ups tools' and reads information about the connected UPS.
218 * apache plugin: Support for lighttpd's `BusyServers' (aka.
219 connections) field was added by Florent Monbillard.
220 * collectd-nagios: The new `collectd-nagios' binary queries values
221 from collectd, parses them and exits according to Nagios-standards.
222 * manpages: The manpages have been improved a lot.
224 2007-09-28, Version 3.11.7
225 * wireless plugin: Correct the handling of cards returning signal and
226 noise quality as percentage.
228 2007-08-31, Version 3.11.6
229 * processes plugin: Fix a potential segmentation fault.
231 2007-05-29, Version 3.11.5
232 * configure: Added `AC_SYS_LARGEFILE' for LFS.
233 * ntpd plugin: Fix a potential buffer overflow.
234 * processes plugin: Fix a bug when run under Linux 2.4. All processes
235 were accounted as `zombies'.
237 2007-04-10, Version 3.11.4
238 * dns plugin: Change the order of includes to make the plugin compile
241 2007-03-30, Version 3.11.3
242 * configure: Have the configure-script define `HAVE_LIBKSTAT' instead
243 of the unused `COLLECT_KSTAT'.
245 2007-02-11, Version 3.11.2
246 * plugin: Catch NULL-pointer and try to fix them. Otherwise the
247 NULL-pointer may have been passed to `printf' which causes a
248 segfault with some libcs.
250 2007-02-10, Version 3.11.1
251 * df plugin: Some wrong defines have been fixed so the plugin works
253 * dns plugin: The usage of a struct has been fixed to work with
255 * processes plugin: Some missing defines have been added so the plugin
256 compiles cleanly under FreeBSD and presumably other UNIXes.
258 2006-12-22, Version 3.11.0
259 * collectd: The new command line option `-P' makes it easier for
260 distributors to change the location of PID-files.
261 * collectd: The daemon shuts down faster now which makes it easier to
262 write init.d-scripts for it.
263 * apache plugin: Increase the buffersize to 16k, because the 4k buffer
264 caused problems every now and then.
265 * df plugin: New config options allow to ignore certain mountpoints,
266 filesystem types or devices.
267 * dns plugin: The new dns plugin uses `libpcap' to capture DNS traffic
268 and interprets it. It collects traffic as well as qtype, opcode and
270 * email plugin: Sebastian Harl has contributed this plugin which
271 counts received mails in categories (e. g. ham, spam, virus), spam
272 score (as given by SpamAssassin) and check types.
273 * mbmon plugin: Flavio Stanchina has contributed this plugin which
274 uses `mbmon' to gather information from sensors on the motherboard.
275 * processes plugin: Collect detailed statistics for configured
276 processes, that's process and thread count, CPU usage, resident
277 segment size and pagefaults.
278 * multimeter plugin: Peter Holik contributed a new plugin which
280 * sensors plugin: Lubos Stanek has put much effort into improving this
281 plugin, including `extended naming', collection of voltage values
282 and the possibility to ignore certain values.
284 2006-12-21, Version 3.10.4
285 * Max Kellermann has identified a bug in the server routine: When
286 opening a socket fails the daemon will (re)try opening the socket in
287 an endless loop, ultimately leading to a `EMFILE' error.
289 2006-11-04, Version 3.10.3
290 * Lubos Stanek has identified a bug in the ntpd-plugin: When the
291 ntpd's reply was sent in more than one packet, the buffer size was
292 calculated incorrectly, resulting in the reading of uninitialized or
295 2006-11-01, Version 3.10.2
296 * The sample config file has been improved.
297 * Errors in the manpages have been corrected.
298 * The ping-plugin now adds hosts during initialization, not during
299 startup. This speeds up startup when no network connectivity is
300 available. Also, the hosts are being added later when the network is
302 * Improved BSD-support for the df-plugin.
303 * Fixed syntax errors in the swap-plugin for Mac OS X.
304 * Fix a wrong structure being passed to `getnameinfo' in the ntpd-
306 * Don't disable the mysql-plugin if connecting to the database fails
307 during initialization. Instead, try again in increasing intervals.
309 2006-07-19, Version 3.10.1
310 * A bug in the apcups plugin was fixed: Is the plugin is loaded, but
311 the apcups cannot be reached, unconnected sockets will pile up and
312 eventually lead to `Too many open files' errors.
314 2006-07-09, Version 3.10.0
315 * The `disk' plugin has been ported to Darwin.
316 * The `battery' plugin should work on many Apple computers now.
317 * The `traffic' plugin can now ignore certain interfaces. Also,
318 statistics for sent/received packets and errors have been added.
319 * A plugin to monitor APC UPSes using `apcupsd' has been added. Thanks
320 to Anthony Gialluca for contributing this plugin and providing me
321 with a test environment :)
322 * A plugin for monitoring an NTP instance and the local clock drift
325 2006-06-25, Version 3.9.4
326 * The Solaris code in the `swap' plugin has been changed to reflect
327 the numbers returned by `swap -s'. Thanks to Christophe Kalt for
329 * The debugging system has been fixed to work with the Sun libc.
330 * When built without librrd the variable `operating_mode' could be
331 uninitialized. Thanks to David Elliot for reporting the bug.
333 2006-06-01, Version 3.9.3
334 * Fixed the ping-plugin under FreeBSD and Mac OS X. Potentially other
335 operating systems also profit from the changes, but I wasn't able to
337 * Changed the build system to find the netinet-includes under FreeBSD
338 and therefore successfully build the `liboping' library there.
340 2006-05-09, Version 3.9.2
341 * Applied a patch to the `liboping' library. Due to a bug in the
342 sequence checking the `ping' plugin stopped working after
343 approximately 7.6 days.
345 2006-05-09, Version 3.8.5
346 * Applied a patch to the `liboping' library. Due to a bug in the
347 sequence checking the `ping' plugin stopped working after
348 approximately 7.6 days.
350 2006-04-21, Version 3.9.1
351 * Build issues with Solaris and possible other architectures have been
353 * Problems when building the `apache'-plugin without `libcurl' have
355 * A bug in the `ping' plugin has been fixed. Sorry folks.
357 2006-04-02, Version 3.9.0
358 * A plugin to monitor the Apache webserver has been added.
359 <http://httpd.apache.org/>
360 * A plugin to collect statistics about virtual servers using VServer.
361 <http://linux-vserver.org/> Thanks to Sebastian Harl for writing
363 * A plugin for wireless LAN cards has been added. It monitors signal
364 strength, link quality and noise ratio..
365 * A plugin for Apple hardware sensors has been added.
366 * An option to compile collectd with different `step' and `heartbeat'
367 settings has been added. The size of RRAs is no longer static but
368 calculated based on the settings for `step' and `width'.
369 * The `ping' plugin can now be configured to use a certain TTL.
370 * A plugin to monitor the hardware sensors of Apple computers has been
372 * The plugins `cpu', `memory', `processes' and `traffic' have been
373 ported to Mach/Darwin (Mac OS X).
374 * The `log mode' has been contributed by Christophe Kalt. It writes
375 the data into text files rather than RRD files.
377 2006-04-09, Version 3.8.4
378 * Applied patch by Vincent Stehlé which improves the disk-name
379 resolution in the `hddtemp' plugin for Linux systems.
381 2006-04-02, Version 3.8.3
382 * Applied a patch by James Byers: The MySQL plugin was not working
383 with MySQL 5.0.2 or later.
385 2006-03-14, Version 3.8.2
386 * `utils_mount.c' has been changed to not use the `MNTTAB' defined by
387 the GNU libc, because it points to `/etc/fstab' rather than
390 2006-03-13, Version 3.8.1
391 * Fixes for building collectd under FreeBSD, Mac OS X and Solaris.
392 * Fixes in the debian `postinst' and `init.d' scripts.
394 2006-03-09, Version 3.8.0
395 * The `ping' plugin no longer uses `libping' but a self written
396 library named `liboping'. With this library it's possible to ping
397 multiple IPv4 and IPv6 addresses and hostnames - in parallel.
399 2006-02-18, Version 3.7.2
400 * A simple bug in the `battery' plugin has been fixed. It should now
401 work with ACPI based batteries as well. Thanks to Sebastian for
403 * Fixing a bug that prevented collectd to be built without librrd.
404 Thanks to Werner Heuser for reporting it.
406 2006-02-04, Version 3.7.1
407 * The new network code has been improved to build with older versions
409 * Fix in `libping' sets the ICMP sequence on outgoing packets. Thanks
410 to Tommie Gannert for this patch.
412 2006-01-30, Version 3.7.0
413 * The `battery' plugin has been added. It collects information about
415 * The MySQL plugin has been improved: It now writes two more RRD
416 files, `mysql_qcache.rrd' and `mysql_threads.rrd'.
417 * The `cpufreq' plugin now reads another file since the file it did
418 read so far causes much overhead in the kernel. Also, you need root
419 to read the old file, but not to read the new one.
420 * The `hddtemp' plugin can now be configured to connect to another
421 address and/or port than localhost.
422 * The `df' plugin now prefers `statvfs' over `statfs'.
423 * The network code has been rewritten. collectd now supports unicast
424 and multicast, and IPv4 and IPv6. Also, the TTL of sent packages can
425 be set in the configfile.
427 2006-01-24, Version 3.6.2
428 * Due to a bug in the configfile handling collectd wouldn't start in
429 client mode. This released fixes this.
431 2006-01-20, Version 3.6.1
432 * Due to a bug in `configure.in' all modules and the binary were
433 linked against `libmysqlclient'. This issue is solved by this
436 2006-01-17, Version 3.6.0
437 * A config file has been added. This allows for loading only specific
439 * A `df' plugin has been added.
440 * A `mysql' plugin has been added.
441 * The `ping' plugin doesn't entirely give up hope when a socket error
442 occurred, but will back of and increase the intervals between tries.
444 2006-01-21, Version 3.5.2
445 * Fixed yet another bug in the signal handling.. Stupid typo..
446 * Improved the ping plugin to not give up on socket errors (backport
449 2005-12-18, Version 3.5.1
450 * The PID-file is now deleted correctly when shutting down the daemon.
451 * SIGINT and SIGTERM are now handled correctly.
453 2005-12-16, Version 3.5.0 (Revision 326)
454 * A bug in the `load' module under Solaris has been fixed.
455 * The `users' module has been contributed by Sebastian Harl. It counts
456 currently logged in users.
457 * The CPU module now works under FreeBSD without the use of
458 `libstatgrab', however SMP support is missing.
459 * The default directories for the RRD files and the PID file now
460 depend on the compile time setting of `localstatedir'.
462 2005-11-15, Version 3.4.0 (Revision 236)
463 * A PID-file is written to /var/run upon startup. Thanks to `Tommie'
464 from gentoo's bugzilla for writing the patch.
465 * The build dependency for librrd has been removed. Binaries built
466 without librrd are client-only and will multicast their value as
467 with the `-c' argument.
468 * A patch by Peter Holik adds a module for monitoring CPU frequencies.
469 * The newly introduced `-f' switch prevents daemon initialization
470 (forking, closing standard filehandles, etc.) Thanks to Alvaro
471 Barcellos for this patch.
473 2005-11-04, Version 3.3.0 (Revision 216)
474 * New modules have been added:
475 - `serial', for monitoring traffic on the serial interfaces
476 - `nfs', for graphing NFS procedure calls
477 - `tape', traffic from/to tape devices
478 * The memory.rrd now accepts more than 4Gig of memory.
480 2005-10-26, Version 3.2.0 (Revision 200)
481 * Support for graphing the processes has been added (thanks to Lyonel
483 * If reading from hddtemp fails collectd will increase the time
484 between polls up to one day.
485 * The init.d files have been improved.
486 * Problems with the spec file have been fixed.
488 2005-10-16, Version 3.1.0 (Revision 194)
489 * Added the `setsid' syscall to the startup code.
490 * Support for hddtemp has been added (thanks to Vincent Stehlé)
492 2005-09-30, Version 3.0.0 (Revision 184)
493 * The ability to send/receive data to/from the network (think
494 multicast) has been added.
495 * Modules have been split up into shared libraries can be loaded at
496 runtime. The biggest advantage is that the core program doesn't need
497 to be linked against an external library.
498 * A patch by George Kargiotakis has been applied: It fixes the sensors
499 behaviour then more than one sensor is being queried.
501 2005-09-16, Version 2.1.0 (Revision 172)
502 * A module for swap statistics has been added.
504 2005-09-09, Version 2.0.0 (Revision 135)
505 * Filenames can no longer be configured at program startup. The only
506 options as of this version are the directory and ping hosts.
507 * CPU statistics now include Wait-IO. If provided under Linux IRQ and
508 Soft-IRQ statistics are added to `System'.
509 * Diskstats now collect read and write bytes, not sectors.
510 * Ping statistics can now be collected for more than one host. There
511 is no default any more: If no host is given no host will be pinged.
512 * A self-written patch for libping has been applied so it builds
515 2005-09-01, Version 1.8.1 (Revision 123)
516 * Much improved configure-script: libraries and features may now be
518 * More detailed warnings/error messages when RRD update fails.
520 2005-08-29, Version 1.8.0:
521 * Support for collecting disk statistics under Solaris.
523 2005-08-25, Version 1.7.0:
524 * Support for libstatgrab[1] for load, memory usage and network
525 traffic. CPU- and disk-usage are not (yet) supported, since
526 libstatgrab returns insufficient information. I will contact the
528 * Improved the CPU-initialization code for Solaris. Apparently CPUs
529 aren't necessarily counted linear which is now handled correctly.
530 [1]: http://www.i-scream.org/libstatgrab/
532 2005-08-21, Version 1.6.0:
533 * Basic support for Solaris: System load and cpu-usage can be
534 collected under Solaris, too. Other stats will follow later.
535 * Many fixes in the autoconf-script
536 * Collection/Museum scripts have been added under contrib/museum
537 * collectd may now be started in unprivileged mode, though ping
538 statistics will not work.
540 2005-07-17, Version 1.5.1:
541 * Diskstats-RRDs now use major/minor for naming. Some systems have
542 weird strings as disk-names..
544 2005-07-17, Version 1.5:
545 * A new module, diskstats, has been added. It collects information
546 about the disks and partitions.
548 2005-07-11, Version 1.4.2:
549 * The meminfo module has been changed to work with more platforms
550 and/or kernel versions.
552 2005-07-10, Version 1.4.1: Correct traffic stats
553 * The traffic rrd-file is now created with DS-type `COUNTER' which I
554 forgot to correct when I changed that module.
556 2005-07-09, Version 1.4: More traffic stats
557 * Traffic is now collected for all interfaces that can be found
558 * Temperature-statistics are read from lm-sensors if available
560 2005-07-08, Version 1.3: CPU stats
561 * Collecting CPU statistics now
563 2004-07-12, Version 1.2: Using syslog
564 * collectd is now using the syslog facility to report errors, warnings
566 * The default directory is now /var/db/collectd
568 2004-07-10, Version 1.1: Minor changes
569 * Nothing really useful to say ;)
571 2004-07-09, Version 1.0: Initial Version
572 * The following modules are provided: