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).
24 * csv plugin: Make it possible to write values to STDOUT instead of
25 files. This is meant for testing purposes mostly. The output written
26 to STDOUT is compatible with the exec plugin. Thanks to Doug
27 MacEachern for the patch.
28 * curl plugin: This new plugin can be used to read web pages and parse
29 them using the same mechanism that's used in the tail plugin.
30 * dbi plugin: This new plugin allows you to connect to a variety of
31 relational databases and use SQL to gather custom statistics from
32 it. It is similar to the already existing PostgreSQL plugin but uses
33 libdbi to communicate with the database(s).
34 * interface plugin: Use the ignorelist framework when selecting /
35 ignoring interfaces. This allows one to use regular expressions to
36 select interfaces, too.
37 * ipmi plugin: Handle temporary IPMI error conditions more gracefully.
38 Thanks to Bruno Prémont for this patch.
39 * memcached plugin: Add hit-ratio metric. Thanks to Doug MacEachern
41 * mysql plugin: Allow connecting to a database via the UNIX domain
42 socket, too. Thanks to Mirko Buffoni for the patch.
43 * network plugin: Further performance improvements for the receive
44 code. This hopefully will help very large setups.
45 * openvpn plugin: This new plugin collects statistics provided by the
46 OpenVPN daemon. Thanks to Doug MacEachern for the patch.
47 * oracle plugin: This new plugin allows you to connect to an Oracle
48 database and use SQL to gather custom statistics from it. It is
49 similar to the already existing PostgreSQL plugin.
50 * perl plugin: Compatibility fixes for broken versions of Perl 5.10
52 * postgresql plugin: The preferred configuration syntax has been
53 updated to be in line with the syntax used by the new dbi and oracle
54 plugins. The compatibility code for the old syntax is present.
55 Support for the new `Result' blocks and the interval parameter has
57 * processes plugin: Stacksize of virtual memory usage statistics have
58 been addded. Portability fixes.
59 * rrdcached plugin: This new plugin uses the (still in development)
60 RRD accelerator daemon, rrdcached. This daemon works very similar to
61 the original rrdtool plugin of collectd, but adds some more nice
64 2009-01-02, Version 4.5.2
65 * build system: Check for `mysql.h' and `mysql/mysql.h', since the
66 file may be in both locations, especially when the database was
67 installed in a non-standard path. Thanks to Dusty Doris for
69 * build system: Handle the _POSIX_PTHREAD_SEMANTICS defined, needed by
70 Solaris, in the configure script automatically.
71 * build system, tcpconns plugin: Check for `kvm_nlist' and
72 `kvm_openfiles' before enabling the plugin: Solaris provides a KVM
73 library with similar functions to the BSD variant, but doesn't
74 provide these necessary functions.
75 * collectd.conf(5): Various fixes and clarifications.
76 * collectd: Remove a GNUism (unnamed unions), thus improving
78 * collectd, apcups plugin: Include "collectd.h" before <stdlib.h>.
79 This solves portability problems, especially for Solaris.
80 * dns plugin: Fix a portability problem with NetBSD.
81 * filecount plugin: Fix an off-by-one error. This error may cause a
83 * network plugin: Fix the handling of `type' in the network protocol.
84 Due to a programming mistake, only 4 or 8 bytes would be copied to a
85 much larger buffer. This caused the `type' to be transferred much
86 more often than necessary. In some cases, e. g. the `cpu' and
87 `cpufreq' plugins being used at the same time, data may be corrupted
88 in those files. Thanks to Bruno Prémont for debugging and reporting
90 * processes plugin: Fix a possible segmentation fault when specifying
91 invalid configuration options.
92 * unixsock plugin: Make sure the initialization function is run only
93 once. This resolves a file descriptor leak under systems which run
94 the initialization more than once, such as Solaris.
96 2008-10-16, Version 4.5.1
97 * build system: Change `--enable-<plugin>' to abort with an error if
98 dependencies are not met. Thanks to Bruno Prémont for the patch.
99 Also, the poisoning of various string functions has been restricted
101 * collectd: Fix a memory leak in the global value cache. With every
102 *missing* value a couple of bytes would be leaked. Another memory
103 leak in the configuration handling code has been fixed. Thanks to
104 Niraj Tolia for reporting these issues.
105 * collectd: Fix an off-by-one error in the ignorelist functionality.
106 When using regular expressions, the last character would be missing,
107 possibly matching differently from what one would expect.
108 * collectdmon: Don't block SIGCHLD. This fixes a potential portability
110 * collectd-nagios: Fix handling of the `-d' option. Thanks to Fabian
111 Linzberger for reporting the bug.
112 * iptables plugin: Fix an off-by-one error. If a string was just one
113 character too long, it was truncated instead of reporting an error.
114 * network plugin: Fix a memory leak in the configuration handling
115 code. Thanks to Niraj Tolia for reporting this issue.
116 * perl plugin: Log an error message if bootstrapping `Collectd' fails.
117 * postgresql plugin: Don't reopen connection during reinitialization.
118 This fixes a bug under Solaris and potentially other platforms.
119 Missing calls to `PQclear' have been added, too. This fixes memory
120 leaks. Thanks to ``Admin'' for reporting these bugs.
121 * snmp plugin: Don't expect null-terminated strings from the Net-SNMP
123 * tail plugin: Call `clearerr(3)' after reading an EOF. This fixes
124 problems with some `libc's. Thanks to Matthias Lay for reporting the
127 2008-09-04, Version 4.5.0
128 * collectd: Added the ability to flush certain identifiers.
129 * collectd: The concept of `notification meta data' has been
131 * filecount plugin: The new filecount plugin counts the number of
132 files in a directory and its subdirectories.
133 * ipmi plugin: Sensor names have been changed to ensure unique names.
134 Notifications upon added and removed sensors can now be generated.
135 * notify_desktop plugin: This new plugin sends notifications to the
136 X desktop using the structure defined in the `Desktop Notification
138 * notify_email plugin: This new plugin sends out notifications via
139 email, using the `esmtp' library.
140 * onewire plugin: The new experimental(!) onewire plugin reads values,
141 such as temperatures, from sensors connected to the computer via the
143 * perl plugin: Improved synchronized access to internal data structures
144 and fixed a possible dead-lock.
145 * perl plugin: Added the ability to flush certain identifiers and marked
146 plugin_flush_all() and plugin_flush_one() as deprecated in favor of
148 * perl plugin: Added the ability to configure Perl plugins.
149 * postgresql plugin: The new postgresql plugin collects statistics
150 about or from a PostgreSQL database.
151 * processes plugin: The `ProcessMatch' option has been added.
152 * rrdtool plugin: Implement throttling of the `update queue' to lessen
154 * tcpconns plugin: This plugin has been ported to OpenBSD.
155 * thermal plugin: The new thermal plugin collects system temperatures
156 using Linux ACPI thermal zone data.
158 2009-01-02, Version 4.4.5
159 * build system: Check for `mysql.h' and `mysql/mysql.h', since the
160 file may be in both locations, especially when the database was
161 installed in a non-standard path. Thanks to Dusty Doris for
163 * build system: Handle the _POSIX_PTHREAD_SEMANTICS defined, needed by
164 Solaris, in the configure script automatically.
165 * collectd.conf(5): Various fixes and clarifications.
166 * apcups plugin: Include "collectd.h" before <stdlib.h>. This solves
167 portability problems, especially for Solaris.
168 * dns plugin: Fix a portability problem with NetBSD.
169 * network plugin: Fix the handling of `type' in the network protocol.
170 Due to a programming mistake, only 4 or 8 bytes would be copied to a
171 much larger buffer. This caused the `type' to be transferred much
172 more often than necessary. In some cases, e. g. the `cpu' and
173 `cpufreq' plugins being used at the same time, data may be corrupted
174 in those files. Thanks to Bruno Prémont for debugging and reporting
176 * unixsock plugin: Make sure the initialization function is run only
177 once. This resolves a file descriptor leak under systems which run
178 the initialization more than once, such as Solaris.
180 2008-10-16, Version 4.4.4
181 * build system: Change `--enable-<plugin>' to abort with an error if
182 dependencies are not met. Thanks to Bruno Prémont for the patch.
183 Also, the poisoning of various string functions has been restricted
185 * collectd: Fix a memory leak in the global value cache. With every
186 *missing* value a couple of bytes would be leaked. Another memory
187 leak in the configuration handling code has been fixed. Thanks to
188 Niraj Tolia for reporting these issues.
189 * collectd: Fix an off-by-one error in the ignorelist functionality.
190 When using regular expressions, the last character would be missing,
191 possibly matching differently from what one would expect.
192 * collectdmon: Don't block SIGCHLD. This fixes a potential portability
194 * collectd-nagios: Fix handling of the `-d' option. Thanks to Fabian
195 Linzberger for reporting the bug.
196 * network plugin: Fix a memory leak in the configuration handling
197 code. Thanks to Niraj Tolia for reporting this issue.
198 * perl plugin: Log an error message if bootstrapping `Collectd' fails.
199 * tail plugin: Call `clearerr(3)' after reading an EOF. This fixes
200 problems with some `libc's. Thanks to Matthias Lay for reporting the
203 2008-09-01, Version 4.4.3
204 * collectd: Fix a memory leak in the threshold checking code.
205 * memcached plugin: Fix a too short timeout and a related file
207 * memory plugin: A typo in the libstatgrab code has been fixed.
208 * snmp plugin: Fix a possible memory leak.
210 2008-07-15, Version 4.4.2
211 * build system: Use pkg-config to detect the upsclient library.
212 * collectd: Try even harder to determine the endianess of the
213 architecture collectd is being built on.
214 * disk plugin: Fix for Linux 2.4: A wrong field was used as the name
216 * dns plugin: Fix compilation errors with BIND versions 19991001
218 * network plugin: Bugfix in the init routine: The init function
219 cleared a buffer regardless of its contents. This could lead to lost
220 values under Solaris.
221 * nginx plugin: Remove usage of the thread-unsafe `strtok' function.
222 * vserver plugin: Remove usage of the thread-unsafe `readdir'
224 * wireless plugin: Work around incorrect noise and power values
225 returned by some broken drivers.
227 2008-06-03, Version 4.4.1
228 * collectd: Fix the `DataSource' option within `Type' blocks. Thanks
229 to kyrone for reporting this.
230 * collectd: Fixed min/max output in notifications generated by
232 * collectd-nagios: Fix the protocol used to communicate with the
234 * perl plugin: Fail noisily, but don't shutdown the daemon, if
235 initialization has errors. An issue with Perl 5.10 has been fixed.
236 * teamspeak2 plugin: Fixed an out of bound array access. Thanks to
237 René Rebe and Siegmund Gorr for reporting this.
239 2008-05-06, Version 4.4.0
240 * collectd: Internal code cleanups.
241 * collectd: Added support for a `Flush' command in the unixsock and
242 exec plugins. This command can be used to force a plugin (or all) to
243 flush its values to disk.
244 * collectd: Thresholds can now be configured to apply to one data
245 source only, making it possible to configure different thresholds
246 for each data source.
247 * apache, nginx plugins: Added the possibility to disable host and/or
249 * ascent plugin: The new ascent plugin reads and parses the statistics
250 page of an Ascent server.
251 * cpu plugin: Support for the statgrab library has been added.
252 * disk plugin: The possibility to ignore certain disks or collect only
253 specific disks has been added.
254 * disk plugin: Support for the statgrab library has been added.
255 * ipmi plugin: The new ipmi plugin uses the OpenIPMI library to read
256 sensor values via IPMI, the intelligent platform management
258 * iptables plugin: The iptc library that is used by the iptables
259 plugin has been added to the distribution, because it is not
260 provided by all distributions and removed from at least one.
261 * powerdns plugin: The new powerdns plugin reads statistics from an
262 authoritative or a recursing PowerDNS name server.
263 * rrdtool plugin: The size of the files generated with the default
264 configuration has been decreased.
265 * tail plugin: The new tail plugin can be used to gather statistics by
266 continuously reading from log files.
267 * teamspeak2 plugin: The new teamspeak2 plugin connects to a
268 TeamSpeak2 server and collects statistics about the number of users
269 and number of channels.
270 * users plugin: Support for the statgrab library has been added.
271 * vmem plugin: The new vmem plugin collects very detailed statistics
272 about the virtual memory subsystem of Linux.
274 2008-08-30, Version 4.3.4
275 * Build system: Improved detection of and linking with the statgrab
277 * collectd: Portability fixes, especially to determine endianess more
279 * Various plugins: Fix format strings.
280 * disk plugin: A fix for giving disks under Linux 2.4 the right names
281 again has been applied.
282 * memcached plugin: Fix a too short timeout and a related file
284 * memory plugin: A typo in the libstatgrab code has been fixed.
285 * network plugin: A fix in the initialization function solves problems
287 * nginx plugin: A thread-unsafe function has been replaced.
288 * vserver plugin: A thread-unsafe function has been replaced.
289 * wireless plugin: A work-around for broken wireless drivers has been
292 2008-04-22, Version 4.3.3
293 * build system: Improved detection of several libraries, especially if
294 they are in non-standard paths.
295 * build system: Portability fixes: Automatically define "_REENTRANT"
296 if the libc expects it.
297 * collectd: Error and warning messages have been improved.
298 * collectd: Check for the BYTE_ORDER and BIG_ENDIAN defines before
300 * apache plugin: Allocate new memory when reading a webpage instead of
301 using a buffer of static size.
302 * exec plugin: Close (almost) all filedescriptors before exec(2)ing
304 * hddtemp plugin: Error and warning messages have been improved.
305 * sensors plugin: Fix sensor collection for some chip types.
307 2008-03-29, Version 4.3.2
308 * collectd: Fix configuration of the `FailureMax', `WarningMax', and
309 `Persist' threshold options.
310 * collectd: Fix handling of missing values in the global value cache.
311 * collectd: Improved error messages when parsing the configuration.
312 * sensors plugin: Fix temperature collection with libsensors4.
313 * unixsock plugin: Fix mixed input and output operation on streams.
314 * wireless plugin: Fix reading noise value.
316 2008-03-05, Version 4.3.1
317 * exec plugin: Set supplementary group IDs.
319 + Use `memcpy' when constructing/parsing a package to avoid
320 alignment problems on weird architectures, such as Sparc.
321 + Translate doubles to/from the x86 byte representation to ensure
322 cross-platform compatibility.
323 * ping plugin: Correct the handling of the `TTL' setting.
324 * swap plugin: Reapply a patch for Solaris.
325 * tcpconns plugin: Portability improvements.
327 2008-02-18, Version 4.3.0
328 * collectd: Notifications have been added to the daemon. Notifications
329 are status messages that may be associated with a data instance.
330 * collectd: Threshold checking has been added to the daemon. This
331 means that you can configure threshold values for each data
332 instance. If this threshold is exceeded a notification will be
334 * collectd: The new `FQDNLookup' option tells the daemon to use the
335 full qualified domain name as the hostname, not just the host part
336 es returned by `gethostname(2)'.
337 * collectd: Support for more than one `TypesDB' file has been added.
338 This is useful when one such file is included in a package but one
339 wants to add custom type definitions.
340 * collectd: The `Include' config option has been expanded to handle
341 entire directories and shell wildcards.
342 * collectdmon: The new `collectdmon' binary detects when collectd
343 terminates and automatically restarts it again.
344 * csv plugin: The CSV plugin is now able to store counter values as a
345 rate, using the `StoreRates' configuration option.
346 * exec plugin: Handling of notifications has been added and the
347 ability to pass arguments to the executed programs has been added.
348 * hddtemp plugin: The new `TranslateDevicename' option lets you
349 disable the translation from device names to major-minor-numbers.
350 * logfile plugin: Handling of notifications has been added.
351 * ntpd plugin: The new `ReverseLookups' can be used to disable reverse
352 domain name lookups in this plugin.
353 * perl plugin: Many internal changes added support for handling multiple
354 threads making the plugin reasonably usable inside collectd. The API has
355 been extended to support notifications and export global variables to
356 Perl plugins; callbacks now have to be identified by name rather than a
357 pointer to a subroutine. The plugin is no longer experimental.
358 * uuid plugin: The new UUID plugin sets the hostname to an unique
359 identifier for this host. This is meant for setups where each client
360 may migrate to another physical host, possibly going through one or
361 more name changes in the process. Thanks to Richard Jones from
362 Red Hat's Emerging Technology group for this plugin.
363 * libvirt: The new libvirt plugin uses the `libvirt' library to query
364 CPU, disk and network statistics about guest systems on the same
365 physical server. Thanks to Richard Jones from Red Hat's Emerging
366 Technology group for this plugin.
368 2008-04-22, Version 4.2.7
369 * build system: Improved detection of several libraries, especially if
370 they are in non-standard paths.
371 * build system: Portability fixes: Automatically define "_REENTRANT"
372 if the libc expects it.
373 * collectd: Error and warning messages have been improved.
374 * collectd: Check for the BYTE_ORDER and BIG_ENDIAN defines before
376 * apache plugin: Allocate new memory when reading a webpage instead of
377 using a buffer of static size.
378 * exec plugin: Close (almost) all filedescriptors before exec(2)ing
380 * hddtemp plugin: Error and warning messages have been improved.
381 * sensors plugin: Fix sensor collection for some chip types.
383 2008-03-29, Version 4.2.6
384 * collectd: Improved error messages when parsing the configuration.
385 * sensors plugin: Fix temperature collection with libsensors4.
386 * unixsock plugin: Fix mixed input and output operation on streams.
387 * wireless plugin: Fix reading noise value.
389 2008-03-04, Version 4.2.5
390 * apache plugin: Improved initialization and error messages.
391 * exec plugin: Set supplementary group IDs.
393 + Create separate threads for reading from the socket and parsing
394 and dispatching incoming packets. Versions prior to this may have
395 problems in high-load situations, where the socket receive buffers
396 overflows, resulting in gaps in the data.
397 + Use `memcpy' when constructing/parsing a package to avoid
398 alignment problems on weird architectures, such as Sparc.
399 + Translate doubles to/from the x86 byte representation to ensure
400 cross-platform compatibility.
401 * ping plugin: Correct the handling of the `TTL' setting.
402 * rrdtool plugin: Ensure correct handling of the `RRATimespan' option.
403 * swap plugin: Reapply a patch for Solaris.
404 * tcpconns plugin: Portability improvements.
406 2008-01-21, Version 4.2.4
407 * unixsock plugin: A bug in the unixsock plugin caused it not to set
408 the permission on the socket as documented in the manpage. Thanks to
409 Evgeny Chukreev for fixing this issue.
410 * collectd: The documentation has been improved.
412 2007-12-28, Version 4.2.3
413 * sensors plugin: Updated the plugin to build and work with version 3
414 of the libsensors library.
416 2007-12-15, Version 4.2.2
417 * nginx plugin: Incorrect comparison of strings lead to a segfault
418 when using the plugin. Thanks to Saulius Grigaliunas for fixing
420 * logfile plugin: The config option `Timestamp' was handled
421 incorrectly and basically always active. Thanks to Luke Heberling
424 2007-11-08, Version 4.2.1
425 * tcpconns plugin: Don't complain about a missing file if IPv6 is not
427 * snmp plugin: Fix a memory leak.
429 2007-10-27, Version 4.2.0
430 * collectd: The new config option `Include' lets you include other
431 configfiles and thus split up your config into smaller parts. This
432 may be especially interesting for the snmp plugin to keep the data
433 definitions separate from the host definitions.
434 * ipvs plugin: The new `ipvs' plugin collects IPVS connection statistics
435 (number of connections, octets and packets for each service and
436 destination). Thanks to Sebastian Harl for this plugin.
437 * memcached plugin: The new `memcached' plugin connects to a memcached
438 daemon process and collects statistics of this distributed caching
439 system. Thanks to Antony Dovgal for contributing this plugin.
440 * nginx plugin: The new `nginx' plugin reads the status page of an
441 nginx daemon and saves the handled connections and requests.
442 * perl plugin: Many changes, including the added `EnableDebugger'
443 config option which lets you debug your Perl plugins more easily.
444 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
445 be more thread-safe otherwise by locking calls to the library.
446 * snmp plugin: Added the options `Scale' and `Shift' to Data-blocks to
447 correct the values returned by SNMP-agents. If a <data> block is
448 defined as `table' the instance is now optional. The sequence number
449 is used as the type-instance in this case. The new `InstancePrefix'
450 option allows to add arbitrary prefixes to the type-instance.
451 * tcpconns plugin: The new `tcpconns' plugin collects the number of
452 certain TCP connections and what state they're in. This can be used
453 to see how many connections your FTP server has to handle or how
454 many outgoing connections your mailserver has open.
456 2008-01-11, Version 4.1.6
457 * unixsock plugin: A bug in the unixsock plugin caused it not to set
458 the permission on the socket as documented in the manpage. Thanks to
459 Evgeny Chukreev for fixing this issue.
460 * collectd: The documentation has been improved.
462 2007-12-27, Version 4.1.5
463 * rrdtool plugin: Fix a memory leak that only occurred in very-low-
465 * sensors plugin: Updated the plugin to build and work with version 3
466 of the libsensors library.
468 2007-11-08, Version 4.1.4
469 * Build system: Improve detection of the rrd library, especially if
470 it's in a non-standard location.
471 * Build system: A bug when parsing the argument for
472 `--with-libnetsnmp' has been fixed.
473 * collectd: Implement `strerror_r' if the libc doesn't provide it.
474 * rrdtool plugin: Fix a bug in the shutdown sequence that might cause
475 a deadlock or delay when shutting down the daemon.
476 * snmp plugin: Fix a memory leak.
478 2007-10-24, Version 4.1.3
479 * collectd: A build issue under Solaris has been resolved by renaming
481 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
482 be more thread-safe otherwise by locking calls to the library.
484 2007-09-28, Version 4.1.2
485 * apcups plugin: Fix reporting of the `load percent' data.
486 * wireless plugin: Correct the handling of cards returning signal and
487 noise quality as percentage.
488 * perl plugin: Fix a possible buffer overflow in get_module_name().
489 * build system: Further improve the detection of libraries.
490 * netlink plugin: Build issues under some older versions of the Linux
491 includes (i. e. Debian Sarge) have been fixed.
492 * snmp plugin: Fix a potential segfault when a host times out. Add
493 support for the `timeticks' type.
495 2007-09-12, Version 4.1.1
496 * Build system: The detection of `libnetlink' has been improved.
497 * collectd: The documentation has been fixed in numerous places.
498 * exec plugin: Setting the group under which to run a program has been
500 * collectd: The `sstrerror' function was improved to work correctly
501 with the broken GNU version of `strerror_r'.
502 * collectd: Write an error message to STDERR when loading of a plugin
504 * apcups plugin: Fix the `types' used to submit the values: They still
505 has an `apcups_' prefix which doesn't work anymore.
506 * rrdtool plugin: Create new RRD-files with the `begin' time set to
507 whatever the client thinks is `now'..
509 2007-09-01, Version 4.1.0
510 * Build system: The build system has been changed to automatically
511 disable all plugins, which are missing dependencies. The dependency
512 checking has been removed from the plugins themselves to remove
514 * Flexible interval: The interval of collected data is now sent along
515 with the data itself over the network, so that the interval-settings
516 of server and clients no longer needs to match.
517 * netlink plugin: The new `netlink' plugin connects to the Linux
518 kernel using a netlink socket and uses it to query information about
519 interfaces, qdiscs and classes.
520 * rrdtool plugin: The cache is now dumped to disk in an extra thread
521 to not block data collection.
522 * snmp plugin: The new `snmp' plugin can read values from SNMP enabled
523 network devices, such as switches, routers, thermometers, rack
524 monitoring servers, etc. The collectd-snmp(5) manpage documents this
526 * unixsock plugin: Added the `LISTVAL' command.
527 * xmms plugin: The new `xmms' plugin graphs the bitrate and frequency
528 of music played with xmms.
530 2007-09-28, Version 4.0.9
531 * apcups plugin: Fix reporting of the `load percent' data.
532 * wireless plugin: Correct the handling of cards returning signal and
533 noise quality as percentage.
534 * perl plugin: Fix a possible buffer overflow in get_module_name().
536 2007-09-12, Version 4.0.8
537 * collectd: The `sstrerror' function was improved to work correctly
538 with the broken GNU version of `strerror_r'.
539 * collectd: Write an error message to STDERR when loading of a plugin
541 * apcups plugin: Fix the `types' used to submit the values: They still
542 has an `apcups_' prefix which doesn't work anymore.
543 * rrdtool plugin: Create new RRD-files with the `begin' time set to
544 whatever the client thinks is `now'..
546 2007-08-26, Version 4.0.7
547 * documentation: Some typos have been fixed and some information has
549 * build system: Many fixes for detecting libraries in unusual places,
550 such as on RedHat systems. The affected libraries are `libcurl',
551 `libmysql', and `libupsclient'.
552 * network plugin: Allow the `Port' option to be specified as a number
553 (i. e. without quotes).
554 * nut plugin: A fix allows linking the nut plugin against
555 libupsclient, version >= 2.2.0.
556 * processes plugin: Fix a potential segmentation fault.
558 2007-07-30, Version 4.0.6
559 * sensors plugin: Fix the ignorelist functionality: Only the `type
560 instance' was used to match against the list, but the documentation
561 told otherwise. This release fixes the code, so it complies with the
563 * syslog plugin: Call `openlog' right when the plugin is loaded, so
564 configuration messages will end up in the logging facility.
565 * conrtib/fedora: The contributed specfile for Fedora has been
568 2007-07-05, Version 4.0.5
569 * Portability: More fixes for OpenBSD have been included.
571 2007-06-24, Version 4.0.4
572 * cpu plugin: Fixed the Solaris code.
573 * dns plugin: Fixed a build issue for OpenBSD.
574 * interface plugin: Fixed the Solaris code.
575 * load plugin: Fixed the alternative `/proc' Linux code.
576 * memory plugin: Fixed the Solaris code.
577 * oconfig: Don't require `-lfl' anymore.
579 2007-06-19, Version 4.0.3
580 * cpu plugin: Fix the Darwin / Mac OS X code.
581 * ping plugin: Use the return value of `getpid', not its address.
582 * csv, rrdtool plugin: Fixed a bug that prevented an buffer to be
583 initialized correctly.
584 * configure: Added `--with-nan-emulation' to aid cross compilation.
586 2007-06-12, Version 4.0.2
587 * hddtemp and ntpd plugin: Corrected the parsing of port numbers when
588 they're given in numerically form.
590 2007-06-07, Version 4.0.1
591 * iptables plugin: A bug in the configuration routine has been fixed.
592 Setting a comment in the configfile will no longer cause a
595 2007-06-03, Version 4.0.0
596 * collectd: The plugin-infrastructure has been changed to allow for
597 more types of plugins, namely `write' and `log' plugins.
598 * collectd: The read-function has been changed to read many plugins in
599 parallel, using threads. Thus, plugins generally need to use
600 thread-safe functions from now on.
601 * collectd: The '-t' command line options allows to perform syntax tests
602 of the configuration file and exit immediately.
603 * csv plugin: The new `csv' plugin handles output to `comma separated
605 * rrdtool plugin: The new `rrdtool' plugin handles output to
606 RRD-files. Data can be cached to combine multiple updates into one
607 write to increase IO-performance.
608 * network plugin: The new `network' plugin handles IO via the network.
609 It implements a different, much more extensible protocol which can
610 combine many values in one packet, decreasing the number of UDP-
611 packets being sent. It can read from and send to the network and
612 with the appropriate configuration even forward packets to other
614 * unixsock plugin: The new `unixsock' plugin provides an interface to
615 communicate with the daemon while it is running. Right now the
616 commands `GETVAL' and `PUTVAL' are implemented, but more are to
618 * perl plugin: The new `perl' plugin allows you to write extensions
619 for collectd in the scripting-language Perl.
620 * logfile plugin: The new `logfile' plugin writes logmessages to files
622 * syslog plugin: The new `syslog' plugin sends logmessages to the
623 system's syslog daemon.
624 * entropy plugin: The new `entropy' plugin collects the amount of
625 entropy currently being available to the system.
626 * exec plugin: The new `exec' plugin forks child processes and reads
627 back values provided by the forked processes.
628 * iptables plugin: The new `iptables' plugin reads counters from
629 iptables rules. Thanks to Sjoerd van der Berg for contributing this
631 * irq plugin: The new `irq' plugin collects the IRQ-counters. Thanks
632 to Peter Holik for contributing this plugin.
633 * nut plugin: The new `nut' plugin connects the upsd of the `network
634 ups tools' and reads information about the connected UPS.
635 * apache plugin: Support for lighttpd's `BusyServers' (aka.
636 connections) field was added by Florent Monbillard.
637 * collectd-nagios: The new `collectd-nagios' binary queries values
638 from collectd, parses them and exits according to Nagios-standards.
639 * manpages: The manpages have been improved a lot.
641 2007-09-28, Version 3.11.7
642 * wireless plugin: Correct the handling of cards returning signal and
643 noise quality as percentage.
645 2007-08-31, Version 3.11.6
646 * processes plugin: Fix a potential segmentation fault.
648 2007-05-29, Version 3.11.5
649 * configure: Added `AC_SYS_LARGEFILE' for LFS.
650 * ntpd plugin: Fix a potential buffer overflow.
651 * processes plugin: Fix a bug when run under Linux 2.4. All processes
652 were accounted as `zombies'.
654 2007-04-10, Version 3.11.4
655 * dns plugin: Change the order of includes to make the plugin compile
658 2007-03-30, Version 3.11.3
659 * configure: Have the configure-script define `HAVE_LIBKSTAT' instead
660 of the unused `COLLECT_KSTAT'.
662 2007-02-11, Version 3.11.2
663 * plugin: Catch NULL-pointer and try to fix them. Otherwise the
664 NULL-pointer may have been passed to `printf' which causes a
665 segfault with some libcs.
667 2007-02-10, Version 3.11.1
668 * df plugin: Some wrong defines have been fixed so the plugin works
670 * dns plugin: The usage of a struct has been fixed to work with
672 * processes plugin: Some missing defines have been added so the plugin
673 compiles cleanly under FreeBSD and presumably other UNIXes.
675 2006-12-22, Version 3.11.0
676 * collectd: The new command line option `-P' makes it easier for
677 distributors to change the location of PID-files.
678 * collectd: The daemon shuts down faster now which makes it easier to
679 write init.d-scripts for it.
680 * apache plugin: Increase the buffersize to 16k, because the 4k buffer
681 caused problems every now and then.
682 * df plugin: New config options allow to ignore certain mountpoints,
683 filesystem types or devices.
684 * dns plugin: The new dns plugin uses `libpcap' to capture DNS traffic
685 and interprets it. It collects traffic as well as qtype, opcode and
687 * email plugin: Sebastian Harl has contributed this plugin which
688 counts received mails in categories (e. g. ham, spam, virus), spam
689 score (as given by SpamAssassin) and check types.
690 * mbmon plugin: Flavio Stanchina has contributed this plugin which
691 uses `mbmon' to gather information from sensors on the motherboard.
692 * processes plugin: Collect detailed statistics for configured
693 processes, that's process and thread count, CPU usage, resident
694 segment size and pagefaults.
695 * multimeter plugin: Peter Holik contributed a new plugin which
697 * sensors plugin: Lubos Stanek has put much effort into improving this
698 plugin, including `extended naming', collection of voltage values
699 and the possibility to ignore certain values.
701 2006-12-21, Version 3.10.4
702 * Max Kellermann has identified a bug in the server routine: When
703 opening a socket fails the daemon will (re)try opening the socket in
704 an endless loop, ultimately leading to a `EMFILE' error.
706 2006-11-04, Version 3.10.3
707 * Lubos Stanek has identified a bug in the ntpd-plugin: When the
708 ntpd's reply was sent in more than one packet, the buffer size was
709 calculated incorrectly, resulting in the reading of uninitialized or
712 2006-11-01, Version 3.10.2
713 * The sample config file has been improved.
714 * Errors in the manpages have been corrected.
715 * The ping-plugin now adds hosts during initialization, not during
716 startup. This speeds up startup when no network connectivity is
717 available. Also, the hosts are being added later when the network is
719 * Improved BSD-support for the df-plugin.
720 * Fixed syntax errors in the swap-plugin for Mac OS X.
721 * Fix a wrong structure being passed to `getnameinfo' in the ntpd-
723 * Don't disable the mysql-plugin if connecting to the database fails
724 during initialization. Instead, try again in increasing intervals.
726 2006-07-19, Version 3.10.1
727 * A bug in the apcups plugin was fixed: Is the plugin is loaded, but
728 the apcups cannot be reached, unconnected sockets will pile up and
729 eventually lead to `Too many open files' errors.
731 2006-07-09, Version 3.10.0
732 * The `disk' plugin has been ported to Darwin.
733 * The `battery' plugin should work on many Apple computers now.
734 * The `traffic' plugin can now ignore certain interfaces. Also,
735 statistics for sent/received packets and errors have been added.
736 * A plugin to monitor APC UPSes using `apcupsd' has been added. Thanks
737 to Anthony Gialluca for contributing this plugin and providing me
738 with a test environment :)
739 * A plugin for monitoring an NTP instance and the local clock drift
742 2006-06-25, Version 3.9.4
743 * The Solaris code in the `swap' plugin has been changed to reflect
744 the numbers returned by `swap -s'. Thanks to Christophe Kalt for
746 * The debugging system has been fixed to work with the Sun libc.
747 * When built without librrd the variable `operating_mode' could be
748 uninitialized. Thanks to David Elliot for reporting the bug.
750 2006-06-01, Version 3.9.3
751 * Fixed the ping-plugin under FreeBSD and Mac OS X. Potentially other
752 operating systems also profit from the changes, but I wasn't able to
754 * Changed the build system to find the netinet-includes under FreeBSD
755 and therefore successfully build the `liboping' library there.
757 2006-05-09, Version 3.9.2
758 * Applied a patch to the `liboping' library. Due to a bug in the
759 sequence checking the `ping' plugin stopped working after
760 approximately 7.6 days.
762 2006-05-09, Version 3.8.5
763 * Applied a patch to the `liboping' library. Due to a bug in the
764 sequence checking the `ping' plugin stopped working after
765 approximately 7.6 days.
767 2006-04-21, Version 3.9.1
768 * Build issues with Solaris and possible other architectures have been
770 * Problems when building the `apache'-plugin without `libcurl' have
772 * A bug in the `ping' plugin has been fixed. Sorry folks.
774 2006-04-02, Version 3.9.0
775 * A plugin to monitor the Apache webserver has been added.
776 <http://httpd.apache.org/>
777 * A plugin to collect statistics about virtual servers using VServer.
778 <http://linux-vserver.org/> Thanks to Sebastian Harl for writing
780 * A plugin for wireless LAN cards has been added. It monitors signal
781 strength, link quality and noise ratio..
782 * A plugin for Apple hardware sensors has been added.
783 * An option to compile collectd with different `step' and `heartbeat'
784 settings has been added. The size of RRAs is no longer static but
785 calculated based on the settings for `step' and `width'.
786 * The `ping' plugin can now be configured to use a certain TTL.
787 * A plugin to monitor the hardware sensors of Apple computers has been
789 * The plugins `cpu', `memory', `processes' and `traffic' have been
790 ported to Mach/Darwin (Mac OS X).
791 * The `log mode' has been contributed by Christophe Kalt. It writes
792 the data into text files rather than RRD files.
794 2006-04-09, Version 3.8.4
795 * Applied patch by Vincent Stehlé which improves the disk-name
796 resolution in the `hddtemp' plugin for Linux systems.
798 2006-04-02, Version 3.8.3
799 * Applied a patch by James Byers: The MySQL plugin was not working
800 with MySQL 5.0.2 or later.
802 2006-03-14, Version 3.8.2
803 * `utils_mount.c' has been changed to not use the `MNTTAB' defined by
804 the GNU libc, because it points to `/etc/fstab' rather than
807 2006-03-13, Version 3.8.1
808 * Fixes for building collectd under FreeBSD, Mac OS X and Solaris.
809 * Fixes in the debian `postinst' and `init.d' scripts.
811 2006-03-09, Version 3.8.0
812 * The `ping' plugin no longer uses `libping' but a self written
813 library named `liboping'. With this library it's possible to ping
814 multiple IPv4 and IPv6 addresses and hostnames - in parallel.
816 2006-02-18, Version 3.7.2
817 * A simple bug in the `battery' plugin has been fixed. It should now
818 work with ACPI based batteries as well. Thanks to Sebastian for
820 * Fixing a bug that prevented collectd to be built without librrd.
821 Thanks to Werner Heuser for reporting it.
823 2006-02-04, Version 3.7.1
824 * The new network code has been improved to build with older versions
826 * Fix in `libping' sets the ICMP sequence on outgoing packets. Thanks
827 to Tommie Gannert for this patch.
829 2006-01-30, Version 3.7.0
830 * The `battery' plugin has been added. It collects information about
832 * The MySQL plugin has been improved: It now writes two more RRD
833 files, `mysql_qcache.rrd' and `mysql_threads.rrd'.
834 * The `cpufreq' plugin now reads another file since the file it did
835 read so far causes much overhead in the kernel. Also, you need root
836 to read the old file, but not to read the new one.
837 * The `hddtemp' plugin can now be configured to connect to another
838 address and/or port than localhost.
839 * The `df' plugin now prefers `statvfs' over `statfs'.
840 * The network code has been rewritten. collectd now supports unicast
841 and multicast, and IPv4 and IPv6. Also, the TTL of sent packages can
842 be set in the configfile.
844 2006-01-24, Version 3.6.2
845 * Due to a bug in the configfile handling collectd wouldn't start in
846 client mode. This released fixes this.
848 2006-01-20, Version 3.6.1
849 * Due to a bug in `configure.in' all modules and the binary were
850 linked against `libmysqlclient'. This issue is solved by this
853 2006-01-17, Version 3.6.0
854 * A config file has been added. This allows for loading only specific
856 * A `df' plugin has been added.
857 * A `mysql' plugin has been added.
858 * The `ping' plugin doesn't entirely give up hope when a socket error
859 occurred, but will back of and increase the intervals between tries.
861 2006-01-21, Version 3.5.2
862 * Fixed yet another bug in the signal handling.. Stupid typo..
863 * Improved the ping plugin to not give up on socket errors (backport
866 2005-12-18, Version 3.5.1
867 * The PID-file is now deleted correctly when shutting down the daemon.
868 * SIGINT and SIGTERM are now handled correctly.
870 2005-12-16, Version 3.5.0 (Revision 326)
871 * A bug in the `load' module under Solaris has been fixed.
872 * The `users' module has been contributed by Sebastian Harl. It counts
873 currently logged in users.
874 * The CPU module now works under FreeBSD without the use of
875 `libstatgrab', however SMP support is missing.
876 * The default directories for the RRD files and the PID file now
877 depend on the compile time setting of `localstatedir'.
879 2005-11-15, Version 3.4.0 (Revision 236)
880 * A PID-file is written to /var/run upon startup. Thanks to `Tommie'
881 from gentoo's bugzilla for writing the patch.
882 * The build dependency for librrd has been removed. Binaries built
883 without librrd are client-only and will multicast their value as
884 with the `-c' argument.
885 * A patch by Peter Holik adds a module for monitoring CPU frequencies.
886 * The newly introduced `-f' switch prevents daemon initialization
887 (forking, closing standard filehandles, etc.) Thanks to Alvaro
888 Barcellos for this patch.
890 2005-11-04, Version 3.3.0 (Revision 216)
891 * New modules have been added:
892 - `serial', for monitoring traffic on the serial interfaces
893 - `nfs', for graphing NFS procedure calls
894 - `tape', traffic from/to tape devices
895 * The memory.rrd now accepts more than 4Gig of memory.
897 2005-10-26, Version 3.2.0 (Revision 200)
898 * Support for graphing the processes has been added (thanks to Lyonel
900 * If reading from hddtemp fails collectd will increase the time
901 between polls up to one day.
902 * The init.d files have been improved.
903 * Problems with the spec file have been fixed.
905 2005-10-16, Version 3.1.0 (Revision 194)
906 * Added the `setsid' syscall to the startup code.
907 * Support for hddtemp has been added (thanks to Vincent Stehlé)
909 2005-09-30, Version 3.0.0 (Revision 184)
910 * The ability to send/receive data to/from the network (think
911 multicast) has been added.
912 * Modules have been split up into shared libraries can be loaded at
913 runtime. The biggest advantage is that the core program doesn't need
914 to be linked against an external library.
915 * A patch by George Kargiotakis has been applied: It fixes the sensors
916 behaviour then more than one sensor is being queried.
918 2005-09-16, Version 2.1.0 (Revision 172)
919 * A module for swap statistics has been added.
921 2005-09-09, Version 2.0.0 (Revision 135)
922 * Filenames can no longer be configured at program startup. The only
923 options as of this version are the directory and ping hosts.
924 * CPU statistics now include Wait-IO. If provided under Linux IRQ and
925 Soft-IRQ statistics are added to `System'.
926 * Diskstats now collect read and write bytes, not sectors.
927 * Ping statistics can now be collected for more than one host. There
928 is no default any more: If no host is given no host will be pinged.
929 * A self-written patch for libping has been applied so it builds
932 2005-09-01, Version 1.8.1 (Revision 123)
933 * Much improved configure-script: libraries and features may now be
935 * More detailed warnings/error messages when RRD update fails.
937 2005-08-29, Version 1.8.0:
938 * Support for collecting disk statistics under Solaris.
940 2005-08-25, Version 1.7.0:
941 * Support for libstatgrab[1] for load, memory usage and network
942 traffic. CPU- and disk-usage are not (yet) supported, since
943 libstatgrab returns insufficient information. I will contact the
945 * Improved the CPU-initialization code for Solaris. Apparently CPUs
946 aren't necessarily counted linear which is now handled correctly.
947 [1]: http://www.i-scream.org/libstatgrab/
949 2005-08-21, Version 1.6.0:
950 * Basic support for Solaris: System load and cpu-usage can be
951 collected under Solaris, too. Other stats will follow later.
952 * Many fixes in the autoconf-script
953 * Collection/Museum scripts have been added under contrib/museum
954 * collectd may now be started in unprivileged mode, though ping
955 statistics will not work.
957 2005-07-17, Version 1.5.1:
958 * Diskstats-RRDs now use major/minor for naming. Some systems have
959 weird strings as disk-names..
961 2005-07-17, Version 1.5:
962 * A new module, diskstats, has been added. It collects information
963 about the disks and partitions.
965 2005-07-11, Version 1.4.2:
966 * The meminfo module has been changed to work with more platforms
967 and/or kernel versions.
969 2005-07-10, Version 1.4.1: Correct traffic stats
970 * The traffic rrd-file is now created with DS-type `COUNTER' which I
971 forgot to correct when I changed that module.
973 2005-07-09, Version 1.4: More traffic stats
974 * Traffic is now collected for all interfaces that can be found
975 * Temperature-statistics are read from lm-sensors if available
977 2005-07-08, Version 1.3: CPU stats
978 * Collecting CPU statistics now
980 2004-07-12, Version 1.2: Using syslog
981 * collectd is now using the syslog facility to report errors, warnings
983 * The default directory is now /var/db/collectd
985 2004-07-10, Version 1.1: Minor changes
986 * Nothing really useful to say ;)
988 2004-07-09, Version 1.0: Initial Version
989 * The following modules are provided:
projects / collectd.git / blob