1 2007-04-02, Version 4.0.0
2 * collectd: The plugin-infrastructure has been changed to allow for
3 more types of plugins, namely `write' and `log' plugins.
4 * collectd: The read-function has been changed to read many plugins in
5 parallel, using threads. Thus, plugins generally need to use
6 thread-safe functions from now on.
7 * csv plugin: The new `csv' plugin handles output to `comma seperated
9 * rrdtool plugin: The new `rrdtool' plugin handles output to
10 RRD-files. Data can be cached to combine multiple updates into one
11 write to increase IO-performance.
12 * network plugin: The new `network' plugin handles IO via the network.
13 It implements a different, much more extensible protocol which can
14 combine many values in one packet, decreasing the number of UDP-
15 packets being sent. It can read from and send to the network and
16 with the appropriate configuration even forward packets to other
18 * unixsock plugin: The new `unixsock' plugin provides an interface to
19 communicate with the daemon while it is running. Right now the
20 commands `GETVAL' and `PUTVAL' are implemented, but more are to
22 * perl plugin: The new `perl' plugin allows you to write extensions
23 for collectd in the scripting-language Perl.
24 * logfile plugin: The new `logfile' plugin writes logmessages to files
26 * syslog plugin: The new `syslog' plugin sends logmessages to the
27 system's syslog daemon.
28 * entropy plugin: The new `entropy' plugin collects the amount of
29 entropy currently being available to the system.
30 * exec plugin: The new `exec' plugin forks child processes and reads
31 back values provided by the forked processes.
32 * iptables plugin: The new `iptables' plugin reads counters from
33 iptables rules. Thanks to Sjoerd van der Berg for contributing this
35 * irq plugin: The new `irq' plugin collects the IRQ-counters. Thanks
36 to Peter Holik for contributing this plugin.
37 * nut plugin: The new `nut' plugin connects the the upsd of the
38 `network ups tools' and reads information about the connected UPS.
39 * apache plugin: Support for lighttpd's `BusyServers' (aka.
40 connections) field was added by Florent Monbillard.
41 * collectd-nagios: The new `collectd-nagios' binary queries values
42 from collectd, parses them and exits according to Nagios-standards.
44 2007-04-10, Version 3.11.4
45 * dns plugin: Change the order of includes to make the plugin compile
48 2007-03-30, Version 3.11.3
49 * configure: Have the configure-script define `HAVE_LIBKSTAT' instead
50 of the unused `COLLECT_KSTAT'.
52 2007-02-11, Version 3.11.2
53 * plugin: Catch NULL-pointer and try to fix them. Otherwise the
54 NULL-pointer may have been passed to `printf' which causes a
55 segfault with some libcs.
57 2007-02-10, Version 3.11.1
58 * df plugin: Some wrong defines have been fixed so the plugin works
60 * dns plugin: The usage of a struct has been fixed to work with
62 * processes plugin: Some missing defines have been added so the plugin
63 compiles cleanly under FreeBSD and presumably other UNIXes.
65 2006-12-22, Version 3.11.0
66 * collectd: The new command line option `-P' makes it easier for
67 distributors to change the location of PID-files.
68 * collectd: The daemon shuts down faster now which makes it easier to
69 write init.d-scripts for it.
70 * apache plugin: Increase the buffersize to 16k, because the 4k buffer
71 caused problems every now and then.
72 * df plugin: New config options allow to ignore certain mountpoints,
73 filesystem types or devices.
74 * dns plugin: The new dns plugin uses `libpcap' to capture DNS traffic
75 and interprets it. It collects traffic as well as qtype, opcode and
77 * email plugin: Sebastian Harl has contributed this plugin which
78 counts received mails in categories (e. g. ham, spam, virus), spam
79 score (as given by SpamAssassin) and check types.
80 * mbmon plugin: Flavio Stanchina has contributed this plugin which
81 uses `mbmon' to gather information from sensors on the motherboard.
82 * processes plugin: Collect detailed statistics for configured
83 processes, that's process and thread count, CPU usage, resident
84 segment size and pagefaults.
85 * multimeter plugin: Peter Holik contributed a new plugin which
87 * sensors plugin: Lubos Stanek has put much effort into improving this
88 plugin, including `extended naming', collection of voltage values
89 and the possibility to ignore certain values.
91 2006-12-21, Version 3.10.4
92 * Max Kellermann has identified a bug in the server routine: When
93 opening a socket fails the daemon will (re)try opening the socket in
94 an endless loop, ultimately leading to a `EMFILE' error.
96 2006-11-04, Version 3.10.3
97 * Lubos Stanek has identified a bug in the ntpd-plugin: When the
98 ntpd's reply was sent in more than one packet, the buffer size was
99 calculated incorrectly, resulting in the reading of uninitialized or
102 2006-11-01, Version 3.10.2
103 * The sample config file has been improved.
104 * Errors in the manpages have been corrected.
105 * The ping-plugin now adds hosts during initialization, not during
106 startup. This speeds up starup when no network connectivity is
107 available. Also, the hosts are being added later when the network is
109 * Improved BSD-support for the df-plugin.
110 * Fixed syntax errors in the swap-plugin for Mac OS X.
111 * Fix a wrong structure being passed to `getnameinfo' in the ntpd-
113 * Don't disable the mysql-plugin if connecting to the database fails
114 during initialization. Instead, try again in increasing intervals.
116 2006-07-19, Version 3.10.1
117 * A bug in the apcups plugin was fixed: Is the plugin is loaded, but
118 the apcups cannot be reached, unconnected sockets will pile up and
119 eventually lead to `Too many open files' errors.
121 2006-07-09, Version 3.10.0
122 * The `disk' plugin has been ported to Darwin.
123 * The `battery' plugin should work on many Apple computers now.
124 * The `traffic' plugin can now ignore certain interfaces. Also,
125 statistics for sent/received packets and errors have been added.
126 * A plugin to monitor APC UPSes using `apcupsd' has been added. Thanks
127 to Anthony Gialluca for contributing this plugin and providing me
128 with a test environment :)
129 * A plugin for moniroting an NTP instance and the local clock drift
132 2006-06-25, Version 3.9.4
133 * The Solaris code in the `swap' plugin has been changed to reflect
134 the numbers returned by `swap -s'. Thanks to Christophe Kalt for
136 * The debugging system has been fixed to work with the Sun libc.
137 * When built without librrd the variable `operating_mode' could be
138 uninitialized. Thanks to David Elliot for reporting the bug.
140 2006-06-01, Version 3.9.3
141 * Fixed the ping-plugin under FreeBSD and Mac OS X. Potentially other
142 operating systems also profit from the changes, but I wasn't able to
144 * Changed the build system to find the netinet-includes under FreeBSD
145 and therefore successfully build the `liboping' library there.
147 2006-05-09, Version 3.9.2
148 * Applied a patch to the `liboping' library. Due to a bug in the
149 sequence checking the `ping' plugin stopped working after
150 approximately 7.6 days.
152 2006-05-09, Version 3.8.5
153 * Applied a patch to the `liboping' library. Due to a bug in the
154 sequence checking the `ping' plugin stopped working after
155 approximately 7.6 days.
157 2006-04-21, Version 3.9.1
158 * Build issues with Solaris and possible other architectures have been
160 * Problems when building the `apache'-plugin without `libcurl' have
162 * A bug in the `ping' plugin has been fixed. Sorry folks.
164 2006-04-02, Version 3.9.0
165 * A plugin to monitor the Apache webserver has been added.
166 <http://httpd.apache.org/>
167 * A plugin to collect statistics about virtual servers using VServer.
168 <http://linux-vserver.org/> Thanks to Sebastian Harl for writing
170 * A plugin for wireless LAN cards has been added. It monitors signal
171 strength, link quality and noise ratio..
172 * A plugin for Apple hardware sensors has been added.
173 * An option to compile collectd with different `step' and `hearbeat'
174 settings has been added. The size of RRAs is no longer static but
175 calculated based on the settings for `step' and `width'.
176 * The `ping' plugin can now be configured to use a certain TTL.
177 * A plugin to monitor the hardware sensors of Apple computers has been
179 * The plugins `cpu', `memory', `processes' and `traffic' have been
180 ported to Mach/Darwin (Mac OS X).
181 * The `log mode' has been contributed by Christophe Kalt. It writes
182 the data into text files rather than RRD files.
184 2006-04-09, Version 3.8.4
185 * Applied patch by Vincent Stehlé which improves the disk-name
186 resolution in the `hddtemp' plugin for Linux systems.
188 2006-04-02, Version 3.8.3
189 * Applied a patch by James Byers: The MySQL plugin was not working
190 with MySQL 5.0.2 or later.
192 2006-03-14, Version 3.8.2
193 * `utils_mount.c' has been changed to not use the `MNTTAB' defined by
194 the GNU libc, because it points to `/etc/fstab' rather than
197 2006-03-13, Version 3.8.1
198 * Fixes for building collectd unter FreeBSD, Mac OS X and Solaris.
199 * Fixes in the debian `postinst' and `init.d' scripts.
201 2006-03-09, Version 3.8.0
202 * The `ping' plugin no longer uses `libping' but a self written
203 library named `liboping'. With this library it's possible to ping
204 multiple IPv4 and IPv6 addresses and hostnames - in parallel.
206 2006-02-18, Version 3.7.2
207 * A simple bug in the `battery' plugin has been fixed. It should now
208 work with ACPI based batteries as well. Thankt to Sebastian for
210 * Fixing a bug that prevented collectd to be built without librrd.
211 Thanks to Werner Heuser for reporting it.
213 2006-02-04, Version 3.7.1
214 * The new network code has been improved to build with older versions
216 * Fix in `libping' sets the ICMP sequence on outgoing packets. Thanks
217 to Tommie Gannert for this patch.
219 2006-01-30, Version 3.7.0
220 * The `battery' plugin has been added. It collects information about
222 * The MySQL plugin has been improved: It now writes two more RRD
223 files, `mysql_qcache.rrd' and `mysql_threads.rrd'.
224 * The `cpufreq' plugin now reads another file since the file it did
225 read so far causes much overhead in the kernel. Also, you need root
226 to read the old file, but not to read the new one.
227 * The `hddtemp' plugin can now be configured to connect to another
228 address and/or port than localhost.
229 * The `df' plugin now prefers `statvfs' over `statfs'.
230 * The network code has been rewritten. collectd now supports unicast
231 and multicast, and IPv4 and IPv6. Also, the TTL of sent packages can
232 be set in the configfile.
234 2006-01-24, Version 3.6.2
235 * Due to a bug in the configfile handling collectd wouldn't start in
236 client mode. This released fixes this.
238 2006-01-20, Version 3.6.1
239 * Due to a bug in `configure.in' all modules and the binary were
240 linked against `libmysqlclient'. This issue is solved by this
243 2006-01-17, Version 3.6.0
244 * A config file has been added. This allows for loading only specific
246 * A `df' plugin has been added.
247 * A `mysql' plugin has been added.
248 * The `ping' plugin doesn't entirely give up hope when a socket error
249 occured, but will back of and increase the intervals between tries.
251 2006-01-21, Version 3.5.2
252 * Fixed yet another bug in the signal handling.. Stupid typo..
253 * Improved the ping plugin to not give up on socket errors (backport
256 2005-12-18, Version 3.5.1
257 * The PID-file is now deleted correctly when shutting down the daemon.
258 * SIGINT and SIGTERM are now handled correctly.
260 2005-12-16, Version 3.5.0 (Revision 326)
261 * A bug in the `load' module under Solaris has been fixed.
262 * The `users' module has been contributed by Sebastian Harl. It counts
263 currently logged in users.
264 * The CPU module now works under FreeBSD without the use of
265 `libstatgrab', however SMP support is missing.
266 * The default directories for the RRD files and the PID file now
267 depend on the compile time setting of `localstatedir'.
269 2005-11-15, Version 3.4.0 (Revision 236)
270 * A PID-file is written to /var/run upon startup. Thanks to `Tommie'
271 from gentoo's bugzilla for writing the patch.
272 * The build dependency for librrd has been removed. Binaries built
273 without librrd are client-only and will multicast their value as
274 with the `-c' argument.
275 * A patch by Peter Holik adds a module for monitoring CPU frequencies.
276 * The newly introduced `-f' switch prevents daemon initialization
277 (forking, closing standard filehandles, etc.) Thanks to Alvaro
278 Barcellos for this patch.
280 2005-11-04, Version 3.3.0 (Revision 216)
281 * New modules have been added:
282 - `serial', for monitoring traffic on the serial interfaces
283 - `nfs', for graphing NFS procedure calls
284 - `tape', traffic from/to tape devices
285 * The the memory.rrd now accepts more than 4Gig of memory.
287 2005-10-26, Version 3.2.0 (Revision 200)
288 * Support for graphing the processes has been added (thanks to Lyonel
290 * If reading from hddtemp failes collectd will increase the time
291 between polls up to one day.
292 * The init.d files have been improved.
293 * Problems with the spec file have been fixed.
295 2005-10-16, Version 3.1.0 (Revision 194)
296 * Added the `setsid' syscall to the startup code.
297 * Support for hddtemp has been added (thanks to Vincent Stehlé)
299 2005-09-30, Version 3.0.0 (Revision 184)
300 * The ability to send/receive data to/from the network (think
301 multicast) has been added.
302 * Modules have been split up into shared libraries can be loaded at
303 runtime. The biggest advantage is that the core program doesn't need
304 to be linked against an external library.
305 * A patch by George Kargiotakis has been applied: It fixes the sensors
306 behaviour then more than one sensor is being queried.
308 2005-09-16, Version 2.1.0 (Revision 172)
309 * A module for swap statistics has been added.
311 2005-09-09, Version 2.0.0 (Revision 135)
312 * Filenames can no longer be configured at program startup. The only
313 options as of this version are the directory and ping hosts.
314 * CPU statistics now include Wait-IO. If privided under Linux IRQ and
315 Soft-IRQ statistics are added to `System'.
316 * Diskstats now collect read and write bytes, not sectors.
317 * Ping statistics can now be collected for more than one host. There
318 is no default any more: If no host is given no host will be pinged.
319 * A self-written patch for libping has been applied so it builds
322 2005-09-01, Version 1.8.1 (Revision 123)
323 * Much improved configure-script: libraries and features may now be
325 * More detailed warnings/error messages when RRD update failes.
327 2005-08-29, Version 1.8.0:
328 * Support for collecting disk statistics under Solaris.
330 2005-08-25, Version 1.7.0:
331 * Support for libstatgrab[1] for load, memory usage and network
332 traffic. CPU- and disk-usage are not (yet) supported, since
333 libstatgrab returns insufficient information. I will contact the
335 * Improved the CPU-initialization code for Solaris. Apparently CPUs
336 aren't neccessarily counted linear which is now handled correctly.
337 [1]: http://www.i-scream.org/libstatgrab/
339 2005-08-21, Version 1.6.0:
340 * Basic support for Solaris: System load and cpu-usage can be
341 collected unter Solaris, too. Other stats will follow later.
342 * Many fixes in the autoconf-script
343 * Collection/Museum scripts have been added unter contrib/museum
344 * collectd may now be started in unprivileged mode, though ping
345 statistics will not work.
347 2005-07-17, Version 1.5.1:
348 * Diskstats-RRDs now use major/minor for naming. Some systems have
349 weird strings as disk-names..
351 2005-07-17, Version 1.5:
352 * A new module, diskstats, has been added. It collects information
353 about the disks and partitions.
355 2005-07-11, Version 1.4.2:
356 * The meminfo mofule has been changed to work with more platforms
357 and/or kernel versions.
359 2005-07-10, Version 1.4.1: Correct traffic stats
360 * The traffic rrd-file is now created with DS-type `COUNTER' which I
361 forgot to correct when I changed that module.
363 2005-07-09, Version 1.4: More traffic stats
364 * Traffic is now collected for all interfaces that can be found
365 * Temperature-statistics are read from lm-sensors if available
367 2005-07-08, Version 1.3: CPU stats
368 * Collecting CPU statistics now
370 2004-07-12, Version 1.2: Using syslog
371 * collectd is now using the syslog facility to report errors, warnings
373 * The default directory is now /var/db/collectd
375 2004-07-10, Version 1.1: Minor changes
376 * Nothing really usefull to say ;)
378 2004-07-09, Version 1.0: Initial Version
379 * The following modules are provided: