1 2009-02-15, Version 4.6.0
2 * collectd: Added the `filter chain' infrastructure, which allows the
3 user to use `matches' and `targets' to control value processing.
4 * collectd: The new `-T' command line argument allows more in-depth
5 testing of a configuration. Thanks to Doug MacEachern for the patch.
6 * collectd-nagios: The Nagios integration command has been updated to
7 use libcollectdclient. The `percentage' aggregation function has
8 been added. Thanks to Fabian Linzberger for the patch.
9 * libcollectdclient: A library which abstract communication with the
10 unixsock plugin for clients has been added.
11 * regex match: Match values by their identifies using regular
13 * timediff match: Match for values with an invalid timestamp.
14 * value match: Select values by their data sources' values.
15 * notification target: Create and dispatch a notification.
16 * replace target: Replace parts of an identifier using regular
18 * set target: Set (overwrite) entire parts of an identifier.
19 * bind plugin: This new plugin uses the new HTTP/XML interface to BIND
20 statistics, allowing very detailed name server statistics. Thanks to
21 Bruno Prémont for this plugin.
22 * cpu plugin: Report `interrupt' separately when using
23 sysctlbyname(3) (used under *BSD). Support for sysctl(3), for
24 example for native OpenBSD support, has been added. Thanks to Simon
26 * csv plugin: Make it possible to write values to STDOUT instead of
27 files. This is meant for testing purposes mostly. The output written
28 to STDOUT is compatible with the exec plugin. Thanks to Doug
29 MacEachern for the patch.
30 * curl plugin: This new plugin can be used to read web pages and parse
31 them using the same mechanism that's used in the tail plugin.
32 * dbi plugin: This new plugin allows you to connect to a variety of
33 relational databases and use SQL to gather custom statistics from
34 it. It is similar to the already existing PostgreSQL plugin but uses
35 libdbi to communicate with the database(s).
36 * interface plugin: Use the ignorelist framework when selecting /
37 ignoring interfaces. This allows one to use regular expressions to
38 select interfaces, too.
39 * ipmi plugin: Handle temporary IPMI error conditions more gracefully.
40 Thanks to Bruno Prémont for this patch.
41 * memcached plugin: Add hit-ratio metric. Thanks to Doug MacEachern
43 * mysql plugin: Allow connecting to a database via the UNIX domain
44 socket, too. Thanks to Mirko Buffoni for the patch.
45 * network plugin: Further performance improvements for the receive
46 code. This hopefully will help very large setups.
47 * openvpn plugin: This new plugin collects statistics provided by the
48 OpenVPN daemon. Thanks to Doug MacEachern for the patch.
49 * oracle plugin: This new plugin allows you to connect to an Oracle
50 database and use SQL to gather custom statistics from it. It is
51 similar to the already existing PostgreSQL plugin.
52 * perl plugin: Compatibility fixes for broken versions of Perl 5.10
54 * postgresql plugin: The preferred configuration syntax has been
55 updated to be in line with the syntax used by the new dbi and oracle
56 plugins. The compatibility code for the old syntax is present.
57 Support for the new `Result' blocks and the interval parameter has
59 * processes plugin: Stacksize of virtual memory usage statistics have
60 been addded. Portability fixes.
61 * rrdcached plugin: This new plugin uses the (still in development)
62 RRD accelerator daemon, rrdcached. This daemon works very similar to
63 the original rrdtool plugin of collectd, but adds some more nice
66 2009-01-02, Version 4.5.2
67 * build system: Check for `mysql.h' and `mysql/mysql.h', since the
68 file may be in both locations, especially when the database was
69 installed in a non-standard path. Thanks to Dusty Doris for
71 * build system: Handle the _POSIX_PTHREAD_SEMANTICS defined, needed by
72 Solaris, in the configure script automatically.
73 * build system, tcpconns plugin: Check for `kvm_nlist' and
74 `kvm_openfiles' before enabling the plugin: Solaris provides a KVM
75 library with similar functions to the BSD variant, but doesn't
76 provide these necessary functions.
77 * collectd.conf(5): Various fixes and clarifications.
78 * collectd: Remove a GNUism (unnamed unions), thus improving
80 * collectd, apcups plugin: Include "collectd.h" before <stdlib.h>.
81 This solves portability problems, especially for Solaris.
82 * dns plugin: Fix a portability problem with NetBSD.
83 * filecount plugin: Fix an off-by-one error. This error may cause a
85 * network plugin: Fix the handling of `type' in the network protocol.
86 Due to a programming mistake, only 4 or 8 bytes would be copied to a
87 much larger buffer. This caused the `type' to be transferred much
88 more often than necessary. In some cases, e. g. the `cpu' and
89 `cpufreq' plugins being used at the same time, data may be corrupted
90 in those files. Thanks to Bruno Prémont for debugging and reporting
92 * processes plugin: Fix a possible segmentation fault when specifying
93 invalid configuration options.
94 * unixsock plugin: Make sure the initialization function is run only
95 once. This resolves a file descriptor leak under systems which run
96 the initialization more than once, such as Solaris.
98 2008-10-16, Version 4.5.1
99 * build system: Change `--enable-<plugin>' to abort with an error if
100 dependencies are not met. Thanks to Bruno Prémont for the patch.
101 Also, the poisoning of various string functions has been restricted
103 * collectd: Fix a memory leak in the global value cache. With every
104 *missing* value a couple of bytes would be leaked. Another memory
105 leak in the configuration handling code has been fixed. Thanks to
106 Niraj Tolia for reporting these issues.
107 * collectd: Fix an off-by-one error in the ignorelist functionality.
108 When using regular expressions, the last character would be missing,
109 possibly matching differently from what one would expect.
110 * collectdmon: Don't block SIGCHLD. This fixes a potential portability
112 * collectd-nagios: Fix handling of the `-d' option. Thanks to Fabian
113 Linzberger for reporting the bug.
114 * iptables plugin: Fix an off-by-one error. If a string was just one
115 character too long, it was truncated instead of reporting an error.
116 * network plugin: Fix a memory leak in the configuration handling
117 code. Thanks to Niraj Tolia for reporting this issue.
118 * perl plugin: Log an error message if bootstrapping `Collectd' fails.
119 * postgresql plugin: Don't reopen connection during reinitialization.
120 This fixes a bug under Solaris and potentially other platforms.
121 Missing calls to `PQclear' have been added, too. This fixes memory
122 leaks. Thanks to ``Admin'' for reporting these bugs.
123 * snmp plugin: Don't expect null-terminated strings from the Net-SNMP
125 * tail plugin: Call `clearerr(3)' after reading an EOF. This fixes
126 problems with some `libc's. Thanks to Matthias Lay for reporting the
129 2008-09-04, Version 4.5.0
130 * collectd: Added the ability to flush certain identifiers.
131 * collectd: The concept of `notification meta data' has been
133 * filecount plugin: The new filecount plugin counts the number of
134 files in a directory and its subdirectories.
135 * ipmi plugin: Sensor names have been changed to ensure unique names.
136 Notifications upon added and removed sensors can now be generated.
137 * notify_desktop plugin: This new plugin sends notifications to the
138 X desktop using the structure defined in the `Desktop Notification
140 * notify_email plugin: This new plugin sends out notifications via
141 email, using the `esmtp' library.
142 * onewire plugin: The new experimental(!) onewire plugin reads values,
143 such as temperatures, from sensors connected to the computer via the
145 * perl plugin: Improved synchronized access to internal data structures
146 and fixed a possible dead-lock.
147 * perl plugin: Added the ability to flush certain identifiers and marked
148 plugin_flush_all() and plugin_flush_one() as deprecated in favor of
150 * perl plugin: Added the ability to configure Perl plugins.
151 * postgresql plugin: The new postgresql plugin collects statistics
152 about or from a PostgreSQL database.
153 * processes plugin: The `ProcessMatch' option has been added.
154 * rrdtool plugin: Implement throttling of the `update queue' to lessen
156 * tcpconns plugin: This plugin has been ported to OpenBSD.
157 * thermal plugin: The new thermal plugin collects system temperatures
158 using Linux ACPI thermal zone data.
160 2009-01-02, Version 4.4.5
161 * build system: Check for `mysql.h' and `mysql/mysql.h', since the
162 file may be in both locations, especially when the database was
163 installed in a non-standard path. Thanks to Dusty Doris for
165 * build system: Handle the _POSIX_PTHREAD_SEMANTICS defined, needed by
166 Solaris, in the configure script automatically.
167 * collectd.conf(5): Various fixes and clarifications.
168 * apcups plugin: Include "collectd.h" before <stdlib.h>. This solves
169 portability problems, especially for Solaris.
170 * dns plugin: Fix a portability problem with NetBSD.
171 * network plugin: Fix the handling of `type' in the network protocol.
172 Due to a programming mistake, only 4 or 8 bytes would be copied to a
173 much larger buffer. This caused the `type' to be transferred much
174 more often than necessary. In some cases, e. g. the `cpu' and
175 `cpufreq' plugins being used at the same time, data may be corrupted
176 in those files. Thanks to Bruno Prémont for debugging and reporting
178 * unixsock plugin: Make sure the initialization function is run only
179 once. This resolves a file descriptor leak under systems which run
180 the initialization more than once, such as Solaris.
182 2008-10-16, Version 4.4.4
183 * build system: Change `--enable-<plugin>' to abort with an error if
184 dependencies are not met. Thanks to Bruno Prémont for the patch.
185 Also, the poisoning of various string functions has been restricted
187 * collectd: Fix a memory leak in the global value cache. With every
188 *missing* value a couple of bytes would be leaked. Another memory
189 leak in the configuration handling code has been fixed. Thanks to
190 Niraj Tolia for reporting these issues.
191 * collectd: Fix an off-by-one error in the ignorelist functionality.
192 When using regular expressions, the last character would be missing,
193 possibly matching differently from what one would expect.
194 * collectdmon: Don't block SIGCHLD. This fixes a potential portability
196 * collectd-nagios: Fix handling of the `-d' option. Thanks to Fabian
197 Linzberger for reporting the bug.
198 * network plugin: Fix a memory leak in the configuration handling
199 code. Thanks to Niraj Tolia for reporting this issue.
200 * perl plugin: Log an error message if bootstrapping `Collectd' fails.
201 * tail plugin: Call `clearerr(3)' after reading an EOF. This fixes
202 problems with some `libc's. Thanks to Matthias Lay for reporting the
205 2008-09-01, Version 4.4.3
206 * collectd: Fix a memory leak in the threshold checking code.
207 * memcached plugin: Fix a too short timeout and a related file
209 * memory plugin: A typo in the libstatgrab code has been fixed.
210 * snmp plugin: Fix a possible memory leak.
212 2008-07-15, Version 4.4.2
213 * build system: Use pkg-config to detect the upsclient library.
214 * collectd: Try even harder to determine the endianess of the
215 architecture collectd is being built on.
216 * disk plugin: Fix for Linux 2.4: A wrong field was used as the name
218 * dns plugin: Fix compilation errors with BIND versions 19991001
220 * network plugin: Bugfix in the init routine: The init function
221 cleared a buffer regardless of its contents. This could lead to lost
222 values under Solaris.
223 * nginx plugin: Remove usage of the thread-unsafe `strtok' function.
224 * vserver plugin: Remove usage of the thread-unsafe `readdir'
226 * wireless plugin: Work around incorrect noise and power values
227 returned by some broken drivers.
229 2008-06-03, Version 4.4.1
230 * collectd: Fix the `DataSource' option within `Type' blocks. Thanks
231 to kyrone for reporting this.
232 * collectd: Fixed min/max output in notifications generated by
234 * collectd-nagios: Fix the protocol used to communicate with the
236 * perl plugin: Fail noisily, but don't shutdown the daemon, if
237 initialization has errors. An issue with Perl 5.10 has been fixed.
238 * teamspeak2 plugin: Fixed an out of bound array access. Thanks to
239 René Rebe and Siegmund Gorr for reporting this.
241 2008-05-06, Version 4.4.0
242 * collectd: Internal code cleanups.
243 * collectd: Added support for a `Flush' command in the unixsock and
244 exec plugins. This command can be used to force a plugin (or all) to
245 flush its values to disk.
246 * collectd: Thresholds can now be configured to apply to one data
247 source only, making it possible to configure different thresholds
248 for each data source.
249 * apache, nginx plugins: Added the possibility to disable host and/or
251 * ascent plugin: The new ascent plugin reads and parses the statistics
252 page of an Ascent server.
253 * cpu plugin: Support for the statgrab library has been added.
254 * disk plugin: The possibility to ignore certain disks or collect only
255 specific disks has been added.
256 * disk plugin: Support for the statgrab library has been added.
257 * ipmi plugin: The new ipmi plugin uses the OpenIPMI library to read
258 sensor values via IPMI, the intelligent platform management
260 * iptables plugin: The iptc library that is used by the iptables
261 plugin has been added to the distribution, because it is not
262 provided by all distributions and removed from at least one.
263 * powerdns plugin: The new powerdns plugin reads statistics from an
264 authoritative or a recursing PowerDNS name server.
265 * rrdtool plugin: The size of the files generated with the default
266 configuration has been decreased.
267 * tail plugin: The new tail plugin can be used to gather statistics by
268 continuously reading from log files.
269 * teamspeak2 plugin: The new teamspeak2 plugin connects to a
270 TeamSpeak2 server and collects statistics about the number of users
271 and number of channels.
272 * users plugin: Support for the statgrab library has been added.
273 * vmem plugin: The new vmem plugin collects very detailed statistics
274 about the virtual memory subsystem of Linux.
276 2008-08-30, Version 4.3.4
277 * Build system: Improved detection of and linking with the statgrab
279 * collectd: Portability fixes, especially to determine endianess more
281 * Various plugins: Fix format strings.
282 * disk plugin: A fix for giving disks under Linux 2.4 the right names
283 again has been applied.
284 * memcached plugin: Fix a too short timeout and a related file
286 * memory plugin: A typo in the libstatgrab code has been fixed.
287 * network plugin: A fix in the initialization function solves problems
289 * nginx plugin: A thread-unsafe function has been replaced.
290 * vserver plugin: A thread-unsafe function has been replaced.
291 * wireless plugin: A work-around for broken wireless drivers has been
294 2008-04-22, Version 4.3.3
295 * build system: Improved detection of several libraries, especially if
296 they are in non-standard paths.
297 * build system: Portability fixes: Automatically define "_REENTRANT"
298 if the libc expects it.
299 * collectd: Error and warning messages have been improved.
300 * collectd: Check for the BYTE_ORDER and BIG_ENDIAN defines before
302 * apache plugin: Allocate new memory when reading a webpage instead of
303 using a buffer of static size.
304 * exec plugin: Close (almost) all filedescriptors before exec(2)ing
306 * hddtemp plugin: Error and warning messages have been improved.
307 * sensors plugin: Fix sensor collection for some chip types.
309 2008-03-29, Version 4.3.2
310 * collectd: Fix configuration of the `FailureMax', `WarningMax', and
311 `Persist' threshold options.
312 * collectd: Fix handling of missing values in the global value cache.
313 * collectd: Improved error messages when parsing the configuration.
314 * sensors plugin: Fix temperature collection with libsensors4.
315 * unixsock plugin: Fix mixed input and output operation on streams.
316 * wireless plugin: Fix reading noise value.
318 2008-03-05, Version 4.3.1
319 * exec plugin: Set supplementary group IDs.
321 + Use `memcpy' when constructing/parsing a package to avoid
322 alignment problems on weird architectures, such as Sparc.
323 + Translate doubles to/from the x86 byte representation to ensure
324 cross-platform compatibility.
325 * ping plugin: Correct the handling of the `TTL' setting.
326 * swap plugin: Reapply a patch for Solaris.
327 * tcpconns plugin: Portability improvements.
329 2008-02-18, Version 4.3.0
330 * collectd: Notifications have been added to the daemon. Notifications
331 are status messages that may be associated with a data instance.
332 * collectd: Threshold checking has been added to the daemon. This
333 means that you can configure threshold values for each data
334 instance. If this threshold is exceeded a notification will be
336 * collectd: The new `FQDNLookup' option tells the daemon to use the
337 full qualified domain name as the hostname, not just the host part
338 es returned by `gethostname(2)'.
339 * collectd: Support for more than one `TypesDB' file has been added.
340 This is useful when one such file is included in a package but one
341 wants to add custom type definitions.
342 * collectd: The `Include' config option has been expanded to handle
343 entire directories and shell wildcards.
344 * collectdmon: The new `collectdmon' binary detects when collectd
345 terminates and automatically restarts it again.
346 * csv plugin: The CSV plugin is now able to store counter values as a
347 rate, using the `StoreRates' configuration option.
348 * exec plugin: Handling of notifications has been added and the
349 ability to pass arguments to the executed programs has been added.
350 * hddtemp plugin: The new `TranslateDevicename' option lets you
351 disable the translation from device names to major-minor-numbers.
352 * logfile plugin: Handling of notifications has been added.
353 * ntpd plugin: The new `ReverseLookups' can be used to disable reverse
354 domain name lookups in this plugin.
355 * perl plugin: Many internal changes added support for handling multiple
356 threads making the plugin reasonably usable inside collectd. The API has
357 been extended to support notifications and export global variables to
358 Perl plugins; callbacks now have to be identified by name rather than a
359 pointer to a subroutine. The plugin is no longer experimental.
360 * uuid plugin: The new UUID plugin sets the hostname to an unique
361 identifier for this host. This is meant for setups where each client
362 may migrate to another physical host, possibly going through one or
363 more name changes in the process. Thanks to Richard Jones from
364 Red Hat's Emerging Technology group for this plugin.
365 * libvirt: The new libvirt plugin uses the `libvirt' library to query
366 CPU, disk and network statistics about guest systems on the same
367 physical server. Thanks to Richard Jones from Red Hat's Emerging
368 Technology group for this plugin.
370 2008-04-22, Version 4.2.7
371 * build system: Improved detection of several libraries, especially if
372 they are in non-standard paths.
373 * build system: Portability fixes: Automatically define "_REENTRANT"
374 if the libc expects it.
375 * collectd: Error and warning messages have been improved.
376 * collectd: Check for the BYTE_ORDER and BIG_ENDIAN defines before
378 * apache plugin: Allocate new memory when reading a webpage instead of
379 using a buffer of static size.
380 * exec plugin: Close (almost) all filedescriptors before exec(2)ing
382 * hddtemp plugin: Error and warning messages have been improved.
383 * sensors plugin: Fix sensor collection for some chip types.
385 2008-03-29, Version 4.2.6
386 * collectd: Improved error messages when parsing the configuration.
387 * sensors plugin: Fix temperature collection with libsensors4.
388 * unixsock plugin: Fix mixed input and output operation on streams.
389 * wireless plugin: Fix reading noise value.
391 2008-03-04, Version 4.2.5
392 * apache plugin: Improved initialization and error messages.
393 * exec plugin: Set supplementary group IDs.
395 + Create separate threads for reading from the socket and parsing
396 and dispatching incoming packets. Versions prior to this may have
397 problems in high-load situations, where the socket receive buffers
398 overflows, resulting in gaps in the data.
399 + Use `memcpy' when constructing/parsing a package to avoid
400 alignment problems on weird architectures, such as Sparc.
401 + Translate doubles to/from the x86 byte representation to ensure
402 cross-platform compatibility.
403 * ping plugin: Correct the handling of the `TTL' setting.
404 * rrdtool plugin: Ensure correct handling of the `RRATimespan' option.
405 * swap plugin: Reapply a patch for Solaris.
406 * tcpconns plugin: Portability improvements.
408 2008-01-21, Version 4.2.4
409 * unixsock plugin: A bug in the unixsock plugin caused it not to set
410 the permission on the socket as documented in the manpage. Thanks to
411 Evgeny Chukreev for fixing this issue.
412 * collectd: The documentation has been improved.
414 2007-12-28, Version 4.2.3
415 * sensors plugin: Updated the plugin to build and work with version 3
416 of the libsensors library.
418 2007-12-15, Version 4.2.2
419 * nginx plugin: Incorrect comparison of strings lead to a segfault
420 when using the plugin. Thanks to Saulius Grigaliunas for fixing
422 * logfile plugin: The config option `Timestamp' was handled
423 incorrectly and basically always active. Thanks to Luke Heberling
426 2007-11-08, Version 4.2.1
427 * tcpconns plugin: Don't complain about a missing file if IPv6 is not
429 * snmp plugin: Fix a memory leak.
431 2007-10-27, Version 4.2.0
432 * collectd: The new config option `Include' lets you include other
433 configfiles and thus split up your config into smaller parts. This
434 may be especially interesting for the snmp plugin to keep the data
435 definitions separate from the host definitions.
436 * ipvs plugin: The new `ipvs' plugin collects IPVS connection statistics
437 (number of connections, octets and packets for each service and
438 destination). Thanks to Sebastian Harl for this plugin.
439 * memcached plugin: The new `memcached' plugin connects to a memcached
440 daemon process and collects statistics of this distributed caching
441 system. Thanks to Antony Dovgal for contributing this plugin.
442 * nginx plugin: The new `nginx' plugin reads the status page of an
443 nginx daemon and saves the handled connections and requests.
444 * perl plugin: Many changes, including the added `EnableDebugger'
445 config option which lets you debug your Perl plugins more easily.
446 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
447 be more thread-safe otherwise by locking calls to the library.
448 * snmp plugin: Added the options `Scale' and `Shift' to Data-blocks to
449 correct the values returned by SNMP-agents. If a <data> block is
450 defined as `table' the instance is now optional. The sequence number
451 is used as the type-instance in this case. The new `InstancePrefix'
452 option allows to add arbitrary prefixes to the type-instance.
453 * tcpconns plugin: The new `tcpconns' plugin collects the number of
454 certain TCP connections and what state they're in. This can be used
455 to see how many connections your FTP server has to handle or how
456 many outgoing connections your mailserver has open.
458 2008-01-11, Version 4.1.6
459 * unixsock plugin: A bug in the unixsock plugin caused it not to set
460 the permission on the socket as documented in the manpage. Thanks to
461 Evgeny Chukreev for fixing this issue.
462 * collectd: The documentation has been improved.
464 2007-12-27, Version 4.1.5
465 * rrdtool plugin: Fix a memory leak that only occurred in very-low-
467 * sensors plugin: Updated the plugin to build and work with version 3
468 of the libsensors library.
470 2007-11-08, Version 4.1.4
471 * Build system: Improve detection of the rrd library, especially if
472 it's in a non-standard location.
473 * Build system: A bug when parsing the argument for
474 `--with-libnetsnmp' has been fixed.
475 * collectd: Implement `strerror_r' if the libc doesn't provide it.
476 * rrdtool plugin: Fix a bug in the shutdown sequence that might cause
477 a deadlock or delay when shutting down the daemon.
478 * snmp plugin: Fix a memory leak.
480 2007-10-24, Version 4.1.3
481 * collectd: A build issue under Solaris has been resolved by renaming
483 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
484 be more thread-safe otherwise by locking calls to the library.
486 2007-09-28, Version 4.1.2
487 * apcups plugin: Fix reporting of the `load percent' data.
488 * wireless plugin: Correct the handling of cards returning signal and
489 noise quality as percentage.
490 * perl plugin: Fix a possible buffer overflow in get_module_name().
491 * build system: Further improve the detection of libraries.
492 * netlink plugin: Build issues under some older versions of the Linux
493 includes (i. e. Debian Sarge) have been fixed.
494 * snmp plugin: Fix a potential segfault when a host times out. Add
495 support for the `timeticks' type.
497 2007-09-12, Version 4.1.1
498 * Build system: The detection of `libnetlink' has been improved.
499 * collectd: The documentation has been fixed in numerous places.
500 * exec plugin: Setting the group under which to run a program has been
502 * collectd: The `sstrerror' function was improved to work correctly
503 with the broken GNU version of `strerror_r'.
504 * collectd: Write an error message to STDERR when loading of a plugin
506 * apcups plugin: Fix the `types' used to submit the values: They still
507 has an `apcups_' prefix which doesn't work anymore.
508 * rrdtool plugin: Create new RRD-files with the `begin' time set to
509 whatever the client thinks is `now'..
511 2007-09-01, Version 4.1.0
512 * Build system: The build system has been changed to automatically
513 disable all plugins, which are missing dependencies. The dependency
514 checking has been removed from the plugins themselves to remove
516 * Flexible interval: The interval of collected data is now sent along
517 with the data itself over the network, so that the interval-settings
518 of server and clients no longer needs to match.
519 * netlink plugin: The new `netlink' plugin connects to the Linux
520 kernel using a netlink socket and uses it to query information about
521 interfaces, qdiscs and classes.
522 * rrdtool plugin: The cache is now dumped to disk in an extra thread
523 to not block data collection.
524 * snmp plugin: The new `snmp' plugin can read values from SNMP enabled
525 network devices, such as switches, routers, thermometers, rack
526 monitoring servers, etc. The collectd-snmp(5) manpage documents this
528 * unixsock plugin: Added the `LISTVAL' command.
529 * xmms plugin: The new `xmms' plugin graphs the bitrate and frequency
530 of music played with xmms.
532 2007-09-28, Version 4.0.9
533 * apcups plugin: Fix reporting of the `load percent' data.
534 * wireless plugin: Correct the handling of cards returning signal and
535 noise quality as percentage.
536 * perl plugin: Fix a possible buffer overflow in get_module_name().
538 2007-09-12, Version 4.0.8
539 * collectd: The `sstrerror' function was improved to work correctly
540 with the broken GNU version of `strerror_r'.
541 * collectd: Write an error message to STDERR when loading of a plugin
543 * apcups plugin: Fix the `types' used to submit the values: They still
544 has an `apcups_' prefix which doesn't work anymore.
545 * rrdtool plugin: Create new RRD-files with the `begin' time set to
546 whatever the client thinks is `now'..
548 2007-08-26, Version 4.0.7
549 * documentation: Some typos have been fixed and some information has
551 * build system: Many fixes for detecting libraries in unusual places,
552 such as on RedHat systems. The affected libraries are `libcurl',
553 `libmysql', and `libupsclient'.
554 * network plugin: Allow the `Port' option to be specified as a number
555 (i. e. without quotes).
556 * nut plugin: A fix allows linking the nut plugin against
557 libupsclient, version >= 2.2.0.
558 * processes plugin: Fix a potential segmentation fault.
560 2007-07-30, Version 4.0.6
561 * sensors plugin: Fix the ignorelist functionality: Only the `type
562 instance' was used to match against the list, but the documentation
563 told otherwise. This release fixes the code, so it complies with the
565 * syslog plugin: Call `openlog' right when the plugin is loaded, so
566 configuration messages will end up in the logging facility.
567 * conrtib/fedora: The contributed specfile for Fedora has been
570 2007-07-05, Version 4.0.5
571 * Portability: More fixes for OpenBSD have been included.
573 2007-06-24, Version 4.0.4
574 * cpu plugin: Fixed the Solaris code.
575 * dns plugin: Fixed a build issue for OpenBSD.
576 * interface plugin: Fixed the Solaris code.
577 * load plugin: Fixed the alternative `/proc' Linux code.
578 * memory plugin: Fixed the Solaris code.
579 * oconfig: Don't require `-lfl' anymore.
581 2007-06-19, Version 4.0.3
582 * cpu plugin: Fix the Darwin / Mac OS X code.
583 * ping plugin: Use the return value of `getpid', not its address.
584 * csv, rrdtool plugin: Fixed a bug that prevented an buffer to be
585 initialized correctly.
586 * configure: Added `--with-nan-emulation' to aid cross compilation.
588 2007-06-12, Version 4.0.2
589 * hddtemp and ntpd plugin: Corrected the parsing of port numbers when
590 they're given in numerically form.
592 2007-06-07, Version 4.0.1
593 * iptables plugin: A bug in the configuration routine has been fixed.
594 Setting a comment in the configfile will no longer cause a
597 2007-06-03, Version 4.0.0
598 * collectd: The plugin-infrastructure has been changed to allow for
599 more types of plugins, namely `write' and `log' plugins.
600 * collectd: The read-function has been changed to read many plugins in
601 parallel, using threads. Thus, plugins generally need to use
602 thread-safe functions from now on.
603 * collectd: The '-t' command line options allows to perform syntax tests
604 of the configuration file and exit immediately.
605 * csv plugin: The new `csv' plugin handles output to `comma separated
607 * rrdtool plugin: The new `rrdtool' plugin handles output to
608 RRD-files. Data can be cached to combine multiple updates into one
609 write to increase IO-performance.
610 * network plugin: The new `network' plugin handles IO via the network.
611 It implements a different, much more extensible protocol which can
612 combine many values in one packet, decreasing the number of UDP-
613 packets being sent. It can read from and send to the network and
614 with the appropriate configuration even forward packets to other
616 * unixsock plugin: The new `unixsock' plugin provides an interface to
617 communicate with the daemon while it is running. Right now the
618 commands `GETVAL' and `PUTVAL' are implemented, but more are to
620 * perl plugin: The new `perl' plugin allows you to write extensions
621 for collectd in the scripting-language Perl.
622 * logfile plugin: The new `logfile' plugin writes logmessages to files
624 * syslog plugin: The new `syslog' plugin sends logmessages to the
625 system's syslog daemon.
626 * entropy plugin: The new `entropy' plugin collects the amount of
627 entropy currently being available to the system.
628 * exec plugin: The new `exec' plugin forks child processes and reads
629 back values provided by the forked processes.
630 * iptables plugin: The new `iptables' plugin reads counters from
631 iptables rules. Thanks to Sjoerd van der Berg for contributing this
633 * irq plugin: The new `irq' plugin collects the IRQ-counters. Thanks
634 to Peter Holik for contributing this plugin.
635 * nut plugin: The new `nut' plugin connects the upsd of the `network
636 ups tools' and reads information about the connected UPS.
637 * apache plugin: Support for lighttpd's `BusyServers' (aka.
638 connections) field was added by Florent Monbillard.
639 * collectd-nagios: The new `collectd-nagios' binary queries values
640 from collectd, parses them and exits according to Nagios-standards.
641 * manpages: The manpages have been improved a lot.
643 2007-09-28, Version 3.11.7
644 * wireless plugin: Correct the handling of cards returning signal and
645 noise quality as percentage.
647 2007-08-31, Version 3.11.6
648 * processes plugin: Fix a potential segmentation fault.
650 2007-05-29, Version 3.11.5
651 * configure: Added `AC_SYS_LARGEFILE' for LFS.
652 * ntpd plugin: Fix a potential buffer overflow.
653 * processes plugin: Fix a bug when run under Linux 2.4. All processes
654 were accounted as `zombies'.
656 2007-04-10, Version 3.11.4
657 * dns plugin: Change the order of includes to make the plugin compile
660 2007-03-30, Version 3.11.3
661 * configure: Have the configure-script define `HAVE_LIBKSTAT' instead
662 of the unused `COLLECT_KSTAT'.
664 2007-02-11, Version 3.11.2
665 * plugin: Catch NULL-pointer and try to fix them. Otherwise the
666 NULL-pointer may have been passed to `printf' which causes a
667 segfault with some libcs.
669 2007-02-10, Version 3.11.1
670 * df plugin: Some wrong defines have been fixed so the plugin works
672 * dns plugin: The usage of a struct has been fixed to work with
674 * processes plugin: Some missing defines have been added so the plugin
675 compiles cleanly under FreeBSD and presumably other UNIXes.
677 2006-12-22, Version 3.11.0
678 * collectd: The new command line option `-P' makes it easier for
679 distributors to change the location of PID-files.
680 * collectd: The daemon shuts down faster now which makes it easier to
681 write init.d-scripts for it.
682 * apache plugin: Increase the buffersize to 16k, because the 4k buffer
683 caused problems every now and then.
684 * df plugin: New config options allow to ignore certain mountpoints,
685 filesystem types or devices.
686 * dns plugin: The new dns plugin uses `libpcap' to capture DNS traffic
687 and interprets it. It collects traffic as well as qtype, opcode and
689 * email plugin: Sebastian Harl has contributed this plugin which
690 counts received mails in categories (e. g. ham, spam, virus), spam
691 score (as given by SpamAssassin) and check types.
692 * mbmon plugin: Flavio Stanchina has contributed this plugin which
693 uses `mbmon' to gather information from sensors on the motherboard.
694 * processes plugin: Collect detailed statistics for configured
695 processes, that's process and thread count, CPU usage, resident
696 segment size and pagefaults.
697 * multimeter plugin: Peter Holik contributed a new plugin which
699 * sensors plugin: Lubos Stanek has put much effort into improving this
700 plugin, including `extended naming', collection of voltage values
701 and the possibility to ignore certain values.
703 2006-12-21, Version 3.10.4
704 * Max Kellermann has identified a bug in the server routine: When
705 opening a socket fails the daemon will (re)try opening the socket in
706 an endless loop, ultimately leading to a `EMFILE' error.
708 2006-11-04, Version 3.10.3
709 * Lubos Stanek has identified a bug in the ntpd-plugin: When the
710 ntpd's reply was sent in more than one packet, the buffer size was
711 calculated incorrectly, resulting in the reading of uninitialized or
714 2006-11-01, Version 3.10.2
715 * The sample config file has been improved.
716 * Errors in the manpages have been corrected.
717 * The ping-plugin now adds hosts during initialization, not during
718 startup. This speeds up startup when no network connectivity is
719 available. Also, the hosts are being added later when the network is
721 * Improved BSD-support for the df-plugin.
722 * Fixed syntax errors in the swap-plugin for Mac OS X.
723 * Fix a wrong structure being passed to `getnameinfo' in the ntpd-
725 * Don't disable the mysql-plugin if connecting to the database fails
726 during initialization. Instead, try again in increasing intervals.
728 2006-07-19, Version 3.10.1
729 * A bug in the apcups plugin was fixed: Is the plugin is loaded, but
730 the apcups cannot be reached, unconnected sockets will pile up and
731 eventually lead to `Too many open files' errors.
733 2006-07-09, Version 3.10.0
734 * The `disk' plugin has been ported to Darwin.
735 * The `battery' plugin should work on many Apple computers now.
736 * The `traffic' plugin can now ignore certain interfaces. Also,
737 statistics for sent/received packets and errors have been added.
738 * A plugin to monitor APC UPSes using `apcupsd' has been added. Thanks
739 to Anthony Gialluca for contributing this plugin and providing me
740 with a test environment :)
741 * A plugin for monitoring an NTP instance and the local clock drift
744 2006-06-25, Version 3.9.4
745 * The Solaris code in the `swap' plugin has been changed to reflect
746 the numbers returned by `swap -s'. Thanks to Christophe Kalt for
748 * The debugging system has been fixed to work with the Sun libc.
749 * When built without librrd the variable `operating_mode' could be
750 uninitialized. Thanks to David Elliot for reporting the bug.
752 2006-06-01, Version 3.9.3
753 * Fixed the ping-plugin under FreeBSD and Mac OS X. Potentially other
754 operating systems also profit from the changes, but I wasn't able to
756 * Changed the build system to find the netinet-includes under FreeBSD
757 and therefore successfully build the `liboping' library there.
759 2006-05-09, Version 3.9.2
760 * Applied a patch to the `liboping' library. Due to a bug in the
761 sequence checking the `ping' plugin stopped working after
762 approximately 7.6 days.
764 2006-05-09, Version 3.8.5
765 * Applied a patch to the `liboping' library. Due to a bug in the
766 sequence checking the `ping' plugin stopped working after
767 approximately 7.6 days.
769 2006-04-21, Version 3.9.1
770 * Build issues with Solaris and possible other architectures have been
772 * Problems when building the `apache'-plugin without `libcurl' have
774 * A bug in the `ping' plugin has been fixed. Sorry folks.
776 2006-04-02, Version 3.9.0
777 * A plugin to monitor the Apache webserver has been added.
778 <http://httpd.apache.org/>
779 * A plugin to collect statistics about virtual servers using VServer.
780 <http://linux-vserver.org/> Thanks to Sebastian Harl for writing
782 * A plugin for wireless LAN cards has been added. It monitors signal
783 strength, link quality and noise ratio..
784 * A plugin for Apple hardware sensors has been added.
785 * An option to compile collectd with different `step' and `heartbeat'
786 settings has been added. The size of RRAs is no longer static but
787 calculated based on the settings for `step' and `width'.
788 * The `ping' plugin can now be configured to use a certain TTL.
789 * A plugin to monitor the hardware sensors of Apple computers has been
791 * The plugins `cpu', `memory', `processes' and `traffic' have been
792 ported to Mach/Darwin (Mac OS X).
793 * The `log mode' has been contributed by Christophe Kalt. It writes
794 the data into text files rather than RRD files.
796 2006-04-09, Version 3.8.4
797 * Applied patch by Vincent Stehlé which improves the disk-name
798 resolution in the `hddtemp' plugin for Linux systems.
800 2006-04-02, Version 3.8.3
801 * Applied a patch by James Byers: The MySQL plugin was not working
802 with MySQL 5.0.2 or later.
804 2006-03-14, Version 3.8.2
805 * `utils_mount.c' has been changed to not use the `MNTTAB' defined by
806 the GNU libc, because it points to `/etc/fstab' rather than
809 2006-03-13, Version 3.8.1
810 * Fixes for building collectd under FreeBSD, Mac OS X and Solaris.
811 * Fixes in the debian `postinst' and `init.d' scripts.
813 2006-03-09, Version 3.8.0
814 * The `ping' plugin no longer uses `libping' but a self written
815 library named `liboping'. With this library it's possible to ping
816 multiple IPv4 and IPv6 addresses and hostnames - in parallel.
818 2006-02-18, Version 3.7.2
819 * A simple bug in the `battery' plugin has been fixed. It should now
820 work with ACPI based batteries as well. Thanks to Sebastian for
822 * Fixing a bug that prevented collectd to be built without librrd.
823 Thanks to Werner Heuser for reporting it.
825 2006-02-04, Version 3.7.1
826 * The new network code has been improved to build with older versions
828 * Fix in `libping' sets the ICMP sequence on outgoing packets. Thanks
829 to Tommie Gannert for this patch.
831 2006-01-30, Version 3.7.0
832 * The `battery' plugin has been added. It collects information about
834 * The MySQL plugin has been improved: It now writes two more RRD
835 files, `mysql_qcache.rrd' and `mysql_threads.rrd'.
836 * The `cpufreq' plugin now reads another file since the file it did
837 read so far causes much overhead in the kernel. Also, you need root
838 to read the old file, but not to read the new one.
839 * The `hddtemp' plugin can now be configured to connect to another
840 address and/or port than localhost.
841 * The `df' plugin now prefers `statvfs' over `statfs'.
842 * The network code has been rewritten. collectd now supports unicast
843 and multicast, and IPv4 and IPv6. Also, the TTL of sent packages can
844 be set in the configfile.
846 2006-01-24, Version 3.6.2
847 * Due to a bug in the configfile handling collectd wouldn't start in
848 client mode. This released fixes this.
850 2006-01-20, Version 3.6.1
851 * Due to a bug in `configure.in' all modules and the binary were
852 linked against `libmysqlclient'. This issue is solved by this
855 2006-01-17, Version 3.6.0
856 * A config file has been added. This allows for loading only specific
858 * A `df' plugin has been added.
859 * A `mysql' plugin has been added.
860 * The `ping' plugin doesn't entirely give up hope when a socket error
861 occurred, but will back of and increase the intervals between tries.
863 2006-01-21, Version 3.5.2
864 * Fixed yet another bug in the signal handling.. Stupid typo..
865 * Improved the ping plugin to not give up on socket errors (backport
868 2005-12-18, Version 3.5.1
869 * The PID-file is now deleted correctly when shutting down the daemon.
870 * SIGINT and SIGTERM are now handled correctly.
872 2005-12-16, Version 3.5.0 (Revision 326)
873 * A bug in the `load' module under Solaris has been fixed.
874 * The `users' module has been contributed by Sebastian Harl. It counts
875 currently logged in users.
876 * The CPU module now works under FreeBSD without the use of
877 `libstatgrab', however SMP support is missing.
878 * The default directories for the RRD files and the PID file now
879 depend on the compile time setting of `localstatedir'.
881 2005-11-15, Version 3.4.0 (Revision 236)
882 * A PID-file is written to /var/run upon startup. Thanks to `Tommie'
883 from gentoo's bugzilla for writing the patch.
884 * The build dependency for librrd has been removed. Binaries built
885 without librrd are client-only and will multicast their value as
886 with the `-c' argument.
887 * A patch by Peter Holik adds a module for monitoring CPU frequencies.
888 * The newly introduced `-f' switch prevents daemon initialization
889 (forking, closing standard filehandles, etc.) Thanks to Alvaro
890 Barcellos for this patch.
892 2005-11-04, Version 3.3.0 (Revision 216)
893 * New modules have been added:
894 - `serial', for monitoring traffic on the serial interfaces
895 - `nfs', for graphing NFS procedure calls
896 - `tape', traffic from/to tape devices
897 * The memory.rrd now accepts more than 4Gig of memory.
899 2005-10-26, Version 3.2.0 (Revision 200)
900 * Support for graphing the processes has been added (thanks to Lyonel
902 * If reading from hddtemp fails collectd will increase the time
903 between polls up to one day.
904 * The init.d files have been improved.
905 * Problems with the spec file have been fixed.
907 2005-10-16, Version 3.1.0 (Revision 194)
908 * Added the `setsid' syscall to the startup code.
909 * Support for hddtemp has been added (thanks to Vincent Stehlé)
911 2005-09-30, Version 3.0.0 (Revision 184)
912 * The ability to send/receive data to/from the network (think
913 multicast) has been added.
914 * Modules have been split up into shared libraries can be loaded at
915 runtime. The biggest advantage is that the core program doesn't need
916 to be linked against an external library.
917 * A patch by George Kargiotakis has been applied: It fixes the sensors
918 behaviour then more than one sensor is being queried.
920 2005-09-16, Version 2.1.0 (Revision 172)
921 * A module for swap statistics has been added.
923 2005-09-09, Version 2.0.0 (Revision 135)
924 * Filenames can no longer be configured at program startup. The only
925 options as of this version are the directory and ping hosts.
926 * CPU statistics now include Wait-IO. If provided under Linux IRQ and
927 Soft-IRQ statistics are added to `System'.
928 * Diskstats now collect read and write bytes, not sectors.
929 * Ping statistics can now be collected for more than one host. There
930 is no default any more: If no host is given no host will be pinged.
931 * A self-written patch for libping has been applied so it builds
934 2005-09-01, Version 1.8.1 (Revision 123)
935 * Much improved configure-script: libraries and features may now be
937 * More detailed warnings/error messages when RRD update fails.
939 2005-08-29, Version 1.8.0:
940 * Support for collecting disk statistics under Solaris.
942 2005-08-25, Version 1.7.0:
943 * Support for libstatgrab[1] for load, memory usage and network
944 traffic. CPU- and disk-usage are not (yet) supported, since
945 libstatgrab returns insufficient information. I will contact the
947 * Improved the CPU-initialization code for Solaris. Apparently CPUs
948 aren't necessarily counted linear which is now handled correctly.
949 [1]: http://www.i-scream.org/libstatgrab/
951 2005-08-21, Version 1.6.0:
952 * Basic support for Solaris: System load and cpu-usage can be
953 collected under Solaris, too. Other stats will follow later.
954 * Many fixes in the autoconf-script
955 * Collection/Museum scripts have been added under contrib/museum
956 * collectd may now be started in unprivileged mode, though ping
957 statistics will not work.
959 2005-07-17, Version 1.5.1:
960 * Diskstats-RRDs now use major/minor for naming. Some systems have
961 weird strings as disk-names..
963 2005-07-17, Version 1.5:
964 * A new module, diskstats, has been added. It collects information
965 about the disks and partitions.
967 2005-07-11, Version 1.4.2:
968 * The meminfo module has been changed to work with more platforms
969 and/or kernel versions.
971 2005-07-10, Version 1.4.1: Correct traffic stats
972 * The traffic rrd-file is now created with DS-type `COUNTER' which I
973 forgot to correct when I changed that module.
975 2005-07-09, Version 1.4: More traffic stats
976 * Traffic is now collected for all interfaces that can be found
977 * Temperature-statistics are read from lm-sensors if available
979 2005-07-08, Version 1.3: CPU stats
980 * Collecting CPU statistics now
982 2004-07-12, Version 1.2: Using syslog
983 * collectd is now using the syslog facility to report errors, warnings
985 * The default directory is now /var/db/collectd
987 2004-07-10, Version 1.1: Minor changes
988 * Nothing really useful to say ;)
990 2004-07-09, Version 1.0: Initial Version
991 * The following modules are provided:
projects / collectd.git / blob