1 2009-02-16, 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 abstracts 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 * perl plugin: Export the newly added plugin_write() to Perl plugins.
55 * perl plugin: Added support for `notification meta data'.
56 * perl plugin: Added support for the `filter chain' infrastructure by
57 allowing plugins to register `matches' and `targets'.
58 * postgresql plugin: The preferred configuration syntax has been
59 updated to be in line with the syntax used by the new dbi and oracle
60 plugins. The compatibility code for the old syntax is present.
61 Support for the new `Result' blocks and the interval parameter has
63 * processes plugin: Stacksize and virtual memory usage statistics have
64 been added. Portability fixes.
65 * rrdcached plugin: This new plugin uses the (still in development)
66 RRD accelerator daemon, rrdcached. This daemon works very similar to
67 the original rrdtool plugin of collectd, but adds some more nice
69 * swap plugin: Code for OpenBSD (and possibly other *BSDs) has been
72 2009-01-02, Version 4.5.2
73 * build system: Check for `mysql.h' and `mysql/mysql.h', since the
74 file may be in both locations, especially when the database was
75 installed in a non-standard path. Thanks to Dusty Doris for
77 * build system: Handle the _POSIX_PTHREAD_SEMANTICS defined, needed by
78 Solaris, in the configure script automatically.
79 * build system, tcpconns plugin: Check for `kvm_nlist' and
80 `kvm_openfiles' before enabling the plugin: Solaris provides a KVM
81 library with similar functions to the BSD variant, but doesn't
82 provide these necessary functions.
83 * collectd.conf(5): Various fixes and clarifications.
84 * collectd: Remove a GNUism (unnamed unions), thus improving
86 * collectd, apcups plugin: Include "collectd.h" before <stdlib.h>.
87 This solves portability problems, especially for Solaris.
88 * dns plugin: Fix a portability problem with NetBSD.
89 * filecount plugin: Fix an off-by-one error. This error may cause a
91 * network plugin: Fix the handling of `type' in the network protocol.
92 Due to a programming mistake, only 4 or 8 bytes would be copied to a
93 much larger buffer. This caused the `type' to be transferred much
94 more often than necessary. In some cases, e. g. the `cpu' and
95 `cpufreq' plugins being used at the same time, data may be corrupted
96 in those files. Thanks to Bruno Prémont for debugging and reporting
98 * processes plugin: Fix a possible segmentation fault when specifying
99 invalid configuration options.
100 * unixsock plugin: Make sure the initialization function is run only
101 once. This resolves a file descriptor leak under systems which run
102 the initialization more than once, such as Solaris.
104 2008-10-16, Version 4.5.1
105 * build system: Change `--enable-<plugin>' to abort with an error if
106 dependencies are not met. Thanks to Bruno Prémont for the patch.
107 Also, the poisoning of various string functions has been restricted
109 * collectd: Fix a memory leak in the global value cache. With every
110 *missing* value a couple of bytes would be leaked. Another memory
111 leak in the configuration handling code has been fixed. Thanks to
112 Niraj Tolia for reporting these issues.
113 * collectd: Fix an off-by-one error in the ignorelist functionality.
114 When using regular expressions, the last character would be missing,
115 possibly matching differently from what one would expect.
116 * collectdmon: Don't block SIGCHLD. This fixes a potential portability
118 * collectd-nagios: Fix handling of the `-d' option. Thanks to Fabian
119 Linzberger for reporting the bug.
120 * iptables plugin: Fix an off-by-one error. If a string was just one
121 character too long, it was truncated instead of reporting an error.
122 * network plugin: Fix a memory leak in the configuration handling
123 code. Thanks to Niraj Tolia for reporting this issue.
124 * perl plugin: Log an error message if bootstrapping `Collectd' fails.
125 * postgresql plugin: Don't reopen connection during reinitialization.
126 This fixes a bug under Solaris and potentially other platforms.
127 Missing calls to `PQclear' have been added, too. This fixes memory
128 leaks. Thanks to ``Admin'' for reporting these bugs.
129 * snmp plugin: Don't expect null-terminated strings from the Net-SNMP
131 * tail plugin: Call `clearerr(3)' after reading an EOF. This fixes
132 problems with some `libc's. Thanks to Matthias Lay for reporting the
135 2008-09-04, Version 4.5.0
136 * collectd: Added the ability to flush certain identifiers.
137 * collectd: The concept of `notification meta data' has been
139 * filecount plugin: The new filecount plugin counts the number of
140 files in a directory and its subdirectories.
141 * ipmi plugin: Sensor names have been changed to ensure unique names.
142 Notifications upon added and removed sensors can now be generated.
143 * notify_desktop plugin: This new plugin sends notifications to the
144 X desktop using the structure defined in the `Desktop Notification
146 * notify_email plugin: This new plugin sends out notifications via
147 email, using the `esmtp' library.
148 * onewire plugin: The new experimental(!) onewire plugin reads values,
149 such as temperatures, from sensors connected to the computer via the
151 * perl plugin: Improved synchronized access to internal data structures
152 and fixed a possible dead-lock.
153 * perl plugin: Added the ability to flush certain identifiers and marked
154 plugin_flush_all() and plugin_flush_one() as deprecated in favor of
156 * perl plugin: Added the ability to configure Perl plugins.
157 * postgresql plugin: The new postgresql plugin collects statistics
158 about or from a PostgreSQL database.
159 * processes plugin: The `ProcessMatch' option has been added.
160 * rrdtool plugin: Implement throttling of the `update queue' to lessen
162 * tcpconns plugin: This plugin has been ported to OpenBSD.
163 * thermal plugin: The new thermal plugin collects system temperatures
164 using Linux ACPI thermal zone data.
166 2009-01-02, Version 4.4.5
167 * build system: Check for `mysql.h' and `mysql/mysql.h', since the
168 file may be in both locations, especially when the database was
169 installed in a non-standard path. Thanks to Dusty Doris for
171 * build system: Handle the _POSIX_PTHREAD_SEMANTICS defined, needed by
172 Solaris, in the configure script automatically.
173 * collectd.conf(5): Various fixes and clarifications.
174 * apcups plugin: Include "collectd.h" before <stdlib.h>. This solves
175 portability problems, especially for Solaris.
176 * dns plugin: Fix a portability problem with NetBSD.
177 * network plugin: Fix the handling of `type' in the network protocol.
178 Due to a programming mistake, only 4 or 8 bytes would be copied to a
179 much larger buffer. This caused the `type' to be transferred much
180 more often than necessary. In some cases, e. g. the `cpu' and
181 `cpufreq' plugins being used at the same time, data may be corrupted
182 in those files. Thanks to Bruno Prémont for debugging and reporting
184 * unixsock plugin: Make sure the initialization function is run only
185 once. This resolves a file descriptor leak under systems which run
186 the initialization more than once, such as Solaris.
188 2008-10-16, Version 4.4.4
189 * build system: Change `--enable-<plugin>' to abort with an error if
190 dependencies are not met. Thanks to Bruno Prémont for the patch.
191 Also, the poisoning of various string functions has been restricted
193 * collectd: Fix a memory leak in the global value cache. With every
194 *missing* value a couple of bytes would be leaked. Another memory
195 leak in the configuration handling code has been fixed. Thanks to
196 Niraj Tolia for reporting these issues.
197 * collectd: Fix an off-by-one error in the ignorelist functionality.
198 When using regular expressions, the last character would be missing,
199 possibly matching differently from what one would expect.
200 * collectdmon: Don't block SIGCHLD. This fixes a potential portability
202 * collectd-nagios: Fix handling of the `-d' option. Thanks to Fabian
203 Linzberger for reporting the bug.
204 * network plugin: Fix a memory leak in the configuration handling
205 code. Thanks to Niraj Tolia for reporting this issue.
206 * perl plugin: Log an error message if bootstrapping `Collectd' fails.
207 * tail plugin: Call `clearerr(3)' after reading an EOF. This fixes
208 problems with some `libc's. Thanks to Matthias Lay for reporting the
211 2008-09-01, Version 4.4.3
212 * collectd: Fix a memory leak in the threshold checking code.
213 * memcached plugin: Fix a too short timeout and a related file
215 * memory plugin: A typo in the libstatgrab code has been fixed.
216 * snmp plugin: Fix a possible memory leak.
218 2008-07-15, Version 4.4.2
219 * build system: Use pkg-config to detect the upsclient library.
220 * collectd: Try even harder to determine the endianess of the
221 architecture collectd is being built on.
222 * disk plugin: Fix for Linux 2.4: A wrong field was used as the name
224 * dns plugin: Fix compilation errors with BIND versions 19991001
226 * network plugin: Bugfix in the init routine: The init function
227 cleared a buffer regardless of its contents. This could lead to lost
228 values under Solaris.
229 * nginx plugin: Remove usage of the thread-unsafe `strtok' function.
230 * vserver plugin: Remove usage of the thread-unsafe `readdir'
232 * wireless plugin: Work around incorrect noise and power values
233 returned by some broken drivers.
235 2008-06-03, Version 4.4.1
236 * collectd: Fix the `DataSource' option within `Type' blocks. Thanks
237 to kyrone for reporting this.
238 * collectd: Fixed min/max output in notifications generated by
240 * collectd-nagios: Fix the protocol used to communicate with the
242 * perl plugin: Fail noisily, but don't shutdown the daemon, if
243 initialization has errors. An issue with Perl 5.10 has been fixed.
244 * teamspeak2 plugin: Fixed an out of bound array access. Thanks to
245 René Rebe and Siegmund Gorr for reporting this.
247 2008-05-06, Version 4.4.0
248 * collectd: Internal code cleanups.
249 * collectd: Added support for a `Flush' command in the unixsock and
250 exec plugins. This command can be used to force a plugin (or all) to
251 flush its values to disk.
252 * collectd: Thresholds can now be configured to apply to one data
253 source only, making it possible to configure different thresholds
254 for each data source.
255 * apache, nginx plugins: Added the possibility to disable host and/or
257 * ascent plugin: The new ascent plugin reads and parses the statistics
258 page of an Ascent server.
259 * cpu plugin: Support for the statgrab library has been added.
260 * disk plugin: The possibility to ignore certain disks or collect only
261 specific disks has been added.
262 * disk plugin: Support for the statgrab library has been added.
263 * ipmi plugin: The new ipmi plugin uses the OpenIPMI library to read
264 sensor values via IPMI, the intelligent platform management
266 * iptables plugin: The iptc library that is used by the iptables
267 plugin has been added to the distribution, because it is not
268 provided by all distributions and removed from at least one.
269 * powerdns plugin: The new powerdns plugin reads statistics from an
270 authoritative or a recursing PowerDNS name server.
271 * rrdtool plugin: The size of the files generated with the default
272 configuration has been decreased.
273 * tail plugin: The new tail plugin can be used to gather statistics by
274 continuously reading from log files.
275 * teamspeak2 plugin: The new teamspeak2 plugin connects to a
276 TeamSpeak2 server and collects statistics about the number of users
277 and number of channels.
278 * users plugin: Support for the statgrab library has been added.
279 * vmem plugin: The new vmem plugin collects very detailed statistics
280 about the virtual memory subsystem of Linux.
282 2008-08-30, Version 4.3.4
283 * Build system: Improved detection of and linking with the statgrab
285 * collectd: Portability fixes, especially to determine endianess more
287 * Various plugins: Fix format strings.
288 * disk plugin: A fix for giving disks under Linux 2.4 the right names
289 again has been applied.
290 * memcached plugin: Fix a too short timeout and a related file
292 * memory plugin: A typo in the libstatgrab code has been fixed.
293 * network plugin: A fix in the initialization function solves problems
295 * nginx plugin: A thread-unsafe function has been replaced.
296 * vserver plugin: A thread-unsafe function has been replaced.
297 * wireless plugin: A work-around for broken wireless drivers has been
300 2008-04-22, Version 4.3.3
301 * build system: Improved detection of several libraries, especially if
302 they are in non-standard paths.
303 * build system: Portability fixes: Automatically define "_REENTRANT"
304 if the libc expects it.
305 * collectd: Error and warning messages have been improved.
306 * collectd: Check for the BYTE_ORDER and BIG_ENDIAN defines before
308 * apache plugin: Allocate new memory when reading a webpage instead of
309 using a buffer of static size.
310 * exec plugin: Close (almost) all filedescriptors before exec(2)ing
312 * hddtemp plugin: Error and warning messages have been improved.
313 * sensors plugin: Fix sensor collection for some chip types.
315 2008-03-29, Version 4.3.2
316 * collectd: Fix configuration of the `FailureMax', `WarningMax', and
317 `Persist' threshold options.
318 * collectd: Fix handling of missing values in the global value cache.
319 * collectd: Improved error messages when parsing the configuration.
320 * sensors plugin: Fix temperature collection with libsensors4.
321 * unixsock plugin: Fix mixed input and output operation on streams.
322 * wireless plugin: Fix reading noise value.
324 2008-03-05, Version 4.3.1
325 * exec plugin: Set supplementary group IDs.
327 + Use `memcpy' when constructing/parsing a package to avoid
328 alignment problems on weird architectures, such as Sparc.
329 + Translate doubles to/from the x86 byte representation to ensure
330 cross-platform compatibility.
331 * ping plugin: Correct the handling of the `TTL' setting.
332 * swap plugin: Reapply a patch for Solaris.
333 * tcpconns plugin: Portability improvements.
335 2008-02-18, Version 4.3.0
336 * collectd: Notifications have been added to the daemon. Notifications
337 are status messages that may be associated with a data instance.
338 * collectd: Threshold checking has been added to the daemon. This
339 means that you can configure threshold values for each data
340 instance. If this threshold is exceeded a notification will be
342 * collectd: The new `FQDNLookup' option tells the daemon to use the
343 full qualified domain name as the hostname, not just the host part
344 es returned by `gethostname(2)'.
345 * collectd: Support for more than one `TypesDB' file has been added.
346 This is useful when one such file is included in a package but one
347 wants to add custom type definitions.
348 * collectd: The `Include' config option has been expanded to handle
349 entire directories and shell wildcards.
350 * collectdmon: The new `collectdmon' binary detects when collectd
351 terminates and automatically restarts it again.
352 * csv plugin: The CSV plugin is now able to store counter values as a
353 rate, using the `StoreRates' configuration option.
354 * exec plugin: Handling of notifications has been added and the
355 ability to pass arguments to the executed programs has been added.
356 * hddtemp plugin: The new `TranslateDevicename' option lets you
357 disable the translation from device names to major-minor-numbers.
358 * logfile plugin: Handling of notifications has been added.
359 * ntpd plugin: The new `ReverseLookups' can be used to disable reverse
360 domain name lookups in this plugin.
361 * perl plugin: Many internal changes added support for handling multiple
362 threads making the plugin reasonably usable inside collectd. The API has
363 been extended to support notifications and export global variables to
364 Perl plugins; callbacks now have to be identified by name rather than a
365 pointer to a subroutine. The plugin is no longer experimental.
366 * uuid plugin: The new UUID plugin sets the hostname to an unique
367 identifier for this host. This is meant for setups where each client
368 may migrate to another physical host, possibly going through one or
369 more name changes in the process. Thanks to Richard Jones from
370 Red Hat's Emerging Technology group for this plugin.
371 * libvirt: The new libvirt plugin uses the `libvirt' library to query
372 CPU, disk and network statistics about guest systems on the same
373 physical server. Thanks to Richard Jones from Red Hat's Emerging
374 Technology group for this plugin.
376 2008-04-22, Version 4.2.7
377 * build system: Improved detection of several libraries, especially if
378 they are in non-standard paths.
379 * build system: Portability fixes: Automatically define "_REENTRANT"
380 if the libc expects it.
381 * collectd: Error and warning messages have been improved.
382 * collectd: Check for the BYTE_ORDER and BIG_ENDIAN defines before
384 * apache plugin: Allocate new memory when reading a webpage instead of
385 using a buffer of static size.
386 * exec plugin: Close (almost) all filedescriptors before exec(2)ing
388 * hddtemp plugin: Error and warning messages have been improved.
389 * sensors plugin: Fix sensor collection for some chip types.
391 2008-03-29, Version 4.2.6
392 * collectd: Improved error messages when parsing the configuration.
393 * sensors plugin: Fix temperature collection with libsensors4.
394 * unixsock plugin: Fix mixed input and output operation on streams.
395 * wireless plugin: Fix reading noise value.
397 2008-03-04, Version 4.2.5
398 * apache plugin: Improved initialization and error messages.
399 * exec plugin: Set supplementary group IDs.
401 + Create separate threads for reading from the socket and parsing
402 and dispatching incoming packets. Versions prior to this may have
403 problems in high-load situations, where the socket receive buffers
404 overflows, resulting in gaps in the data.
405 + Use `memcpy' when constructing/parsing a package to avoid
406 alignment problems on weird architectures, such as Sparc.
407 + Translate doubles to/from the x86 byte representation to ensure
408 cross-platform compatibility.
409 * ping plugin: Correct the handling of the `TTL' setting.
410 * rrdtool plugin: Ensure correct handling of the `RRATimespan' option.
411 * swap plugin: Reapply a patch for Solaris.
412 * tcpconns plugin: Portability improvements.
414 2008-01-21, Version 4.2.4
415 * unixsock plugin: A bug in the unixsock plugin caused it not to set
416 the permission on the socket as documented in the manpage. Thanks to
417 Evgeny Chukreev for fixing this issue.
418 * collectd: The documentation has been improved.
420 2007-12-28, Version 4.2.3
421 * sensors plugin: Updated the plugin to build and work with version 3
422 of the libsensors library.
424 2007-12-15, Version 4.2.2
425 * nginx plugin: Incorrect comparison of strings lead to a segfault
426 when using the plugin. Thanks to Saulius Grigaliunas for fixing
428 * logfile plugin: The config option `Timestamp' was handled
429 incorrectly and basically always active. Thanks to Luke Heberling
432 2007-11-08, Version 4.2.1
433 * tcpconns plugin: Don't complain about a missing file if IPv6 is not
435 * snmp plugin: Fix a memory leak.
437 2007-10-27, Version 4.2.0
438 * collectd: The new config option `Include' lets you include other
439 configfiles and thus split up your config into smaller parts. This
440 may be especially interesting for the snmp plugin to keep the data
441 definitions separate from the host definitions.
442 * ipvs plugin: The new `ipvs' plugin collects IPVS connection statistics
443 (number of connections, octets and packets for each service and
444 destination). Thanks to Sebastian Harl for this plugin.
445 * memcached plugin: The new `memcached' plugin connects to a memcached
446 daemon process and collects statistics of this distributed caching
447 system. Thanks to Antony Dovgal for contributing this plugin.
448 * nginx plugin: The new `nginx' plugin reads the status page of an
449 nginx daemon and saves the handled connections and requests.
450 * perl plugin: Many changes, including the added `EnableDebugger'
451 config option which lets you debug your Perl plugins more easily.
452 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
453 be more thread-safe otherwise by locking calls to the library.
454 * snmp plugin: Added the options `Scale' and `Shift' to Data-blocks to
455 correct the values returned by SNMP-agents. If a <data> block is
456 defined as `table' the instance is now optional. The sequence number
457 is used as the type-instance in this case. The new `InstancePrefix'
458 option allows to add arbitrary prefixes to the type-instance.
459 * tcpconns plugin: The new `tcpconns' plugin collects the number of
460 certain TCP connections and what state they're in. This can be used
461 to see how many connections your FTP server has to handle or how
462 many outgoing connections your mailserver has open.
464 2008-01-11, Version 4.1.6
465 * unixsock plugin: A bug in the unixsock plugin caused it not to set
466 the permission on the socket as documented in the manpage. Thanks to
467 Evgeny Chukreev for fixing this issue.
468 * collectd: The documentation has been improved.
470 2007-12-27, Version 4.1.5
471 * rrdtool plugin: Fix a memory leak that only occurred in very-low-
473 * sensors plugin: Updated the plugin to build and work with version 3
474 of the libsensors library.
476 2007-11-08, Version 4.1.4
477 * Build system: Improve detection of the rrd library, especially if
478 it's in a non-standard location.
479 * Build system: A bug when parsing the argument for
480 `--with-libnetsnmp' has been fixed.
481 * collectd: Implement `strerror_r' if the libc doesn't provide it.
482 * rrdtool plugin: Fix a bug in the shutdown sequence that might cause
483 a deadlock or delay when shutting down the daemon.
484 * snmp plugin: Fix a memory leak.
486 2007-10-24, Version 4.1.3
487 * collectd: A build issue under Solaris has been resolved by renaming
489 * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
490 be more thread-safe otherwise by locking calls to the library.
492 2007-09-28, Version 4.1.2
493 * apcups plugin: Fix reporting of the `load percent' data.
494 * wireless plugin: Correct the handling of cards returning signal and
495 noise quality as percentage.
496 * perl plugin: Fix a possible buffer overflow in get_module_name().
497 * build system: Further improve the detection of libraries.
498 * netlink plugin: Build issues under some older versions of the Linux
499 includes (i. e. Debian Sarge) have been fixed.
500 * snmp plugin: Fix a potential segfault when a host times out. Add
501 support for the `timeticks' type.
503 2007-09-12, Version 4.1.1
504 * Build system: The detection of `libnetlink' has been improved.
505 * collectd: The documentation has been fixed in numerous places.
506 * exec plugin: Setting the group under which to run a program has been
508 * collectd: The `sstrerror' function was improved to work correctly
509 with the broken GNU version of `strerror_r'.
510 * collectd: Write an error message to STDERR when loading of a plugin
512 * apcups plugin: Fix the `types' used to submit the values: They still
513 has an `apcups_' prefix which doesn't work anymore.
514 * rrdtool plugin: Create new RRD-files with the `begin' time set to
515 whatever the client thinks is `now'..
517 2007-09-01, Version 4.1.0
518 * Build system: The build system has been changed to automatically
519 disable all plugins, which are missing dependencies. The dependency
520 checking has been removed from the plugins themselves to remove
522 * Flexible interval: The interval of collected data is now sent along
523 with the data itself over the network, so that the interval-settings
524 of server and clients no longer needs to match.
525 * netlink plugin: The new `netlink' plugin connects to the Linux
526 kernel using a netlink socket and uses it to query information about
527 interfaces, qdiscs and classes.
528 * rrdtool plugin: The cache is now dumped to disk in an extra thread
529 to not block data collection.
530 * snmp plugin: The new `snmp' plugin can read values from SNMP enabled
531 network devices, such as switches, routers, thermometers, rack
532 monitoring servers, etc. The collectd-snmp(5) manpage documents this
534 * unixsock plugin: Added the `LISTVAL' command.
535 * xmms plugin: The new `xmms' plugin graphs the bitrate and frequency
536 of music played with xmms.
538 2007-09-28, Version 4.0.9
539 * apcups plugin: Fix reporting of the `load percent' data.
540 * wireless plugin: Correct the handling of cards returning signal and
541 noise quality as percentage.
542 * perl plugin: Fix a possible buffer overflow in get_module_name().
544 2007-09-12, Version 4.0.8
545 * collectd: The `sstrerror' function was improved to work correctly
546 with the broken GNU version of `strerror_r'.
547 * collectd: Write an error message to STDERR when loading of a plugin
549 * apcups plugin: Fix the `types' used to submit the values: They still
550 has an `apcups_' prefix which doesn't work anymore.
551 * rrdtool plugin: Create new RRD-files with the `begin' time set to
552 whatever the client thinks is `now'..
554 2007-08-26, Version 4.0.7
555 * documentation: Some typos have been fixed and some information has
557 * build system: Many fixes for detecting libraries in unusual places,
558 such as on RedHat systems. The affected libraries are `libcurl',
559 `libmysql', and `libupsclient'.
560 * network plugin: Allow the `Port' option to be specified as a number
561 (i. e. without quotes).
562 * nut plugin: A fix allows linking the nut plugin against
563 libupsclient, version >= 2.2.0.
564 * processes plugin: Fix a potential segmentation fault.
566 2007-07-30, Version 4.0.6
567 * sensors plugin: Fix the ignorelist functionality: Only the `type
568 instance' was used to match against the list, but the documentation
569 told otherwise. This release fixes the code, so it complies with the
571 * syslog plugin: Call `openlog' right when the plugin is loaded, so
572 configuration messages will end up in the logging facility.
573 * conrtib/fedora: The contributed specfile for Fedora has been
576 2007-07-05, Version 4.0.5
577 * Portability: More fixes for OpenBSD have been included.
579 2007-06-24, Version 4.0.4
580 * cpu plugin: Fixed the Solaris code.
581 * dns plugin: Fixed a build issue for OpenBSD.
582 * interface plugin: Fixed the Solaris code.
583 * load plugin: Fixed the alternative `/proc' Linux code.
584 * memory plugin: Fixed the Solaris code.
585 * oconfig: Don't require `-lfl' anymore.
587 2007-06-19, Version 4.0.3
588 * cpu plugin: Fix the Darwin / Mac OS X code.
589 * ping plugin: Use the return value of `getpid', not its address.
590 * csv, rrdtool plugin: Fixed a bug that prevented an buffer to be
591 initialized correctly.
592 * configure: Added `--with-nan-emulation' to aid cross compilation.
594 2007-06-12, Version 4.0.2
595 * hddtemp and ntpd plugin: Corrected the parsing of port numbers when
596 they're given in numerically form.
598 2007-06-07, Version 4.0.1
599 * iptables plugin: A bug in the configuration routine has been fixed.
600 Setting a comment in the configfile will no longer cause a
603 2007-06-03, Version 4.0.0
604 * collectd: The plugin-infrastructure has been changed to allow for
605 more types of plugins, namely `write' and `log' plugins.
606 * collectd: The read-function has been changed to read many plugins in
607 parallel, using threads. Thus, plugins generally need to use
608 thread-safe functions from now on.
609 * collectd: The '-t' command line options allows to perform syntax tests
610 of the configuration file and exit immediately.
611 * csv plugin: The new `csv' plugin handles output to `comma separated
613 * rrdtool plugin: The new `rrdtool' plugin handles output to
614 RRD-files. Data can be cached to combine multiple updates into one
615 write to increase IO-performance.
616 * network plugin: The new `network' plugin handles IO via the network.
617 It implements a different, much more extensible protocol which can
618 combine many values in one packet, decreasing the number of UDP-
619 packets being sent. It can read from and send to the network and
620 with the appropriate configuration even forward packets to other
622 * unixsock plugin: The new `unixsock' plugin provides an interface to
623 communicate with the daemon while it is running. Right now the
624 commands `GETVAL' and `PUTVAL' are implemented, but more are to
626 * perl plugin: The new `perl' plugin allows you to write extensions
627 for collectd in the scripting-language Perl.
628 * logfile plugin: The new `logfile' plugin writes logmessages to files
630 * syslog plugin: The new `syslog' plugin sends logmessages to the
631 system's syslog daemon.
632 * entropy plugin: The new `entropy' plugin collects the amount of
633 entropy currently being available to the system.
634 * exec plugin: The new `exec' plugin forks child processes and reads
635 back values provided by the forked processes.
636 * iptables plugin: The new `iptables' plugin reads counters from
637 iptables rules. Thanks to Sjoerd van der Berg for contributing this
639 * irq plugin: The new `irq' plugin collects the IRQ-counters. Thanks
640 to Peter Holik for contributing this plugin.
641 * nut plugin: The new `nut' plugin connects the upsd of the `network
642 ups tools' and reads information about the connected UPS.
643 * apache plugin: Support for lighttpd's `BusyServers' (aka.
644 connections) field was added by Florent Monbillard.
645 * collectd-nagios: The new `collectd-nagios' binary queries values
646 from collectd, parses them and exits according to Nagios-standards.
647 * manpages: The manpages have been improved a lot.
649 2007-09-28, Version 3.11.7
650 * wireless plugin: Correct the handling of cards returning signal and
651 noise quality as percentage.
653 2007-08-31, Version 3.11.6
654 * processes plugin: Fix a potential segmentation fault.
656 2007-05-29, Version 3.11.5
657 * configure: Added `AC_SYS_LARGEFILE' for LFS.
658 * ntpd plugin: Fix a potential buffer overflow.
659 * processes plugin: Fix a bug when run under Linux 2.4. All processes
660 were accounted as `zombies'.
662 2007-04-10, Version 3.11.4
663 * dns plugin: Change the order of includes to make the plugin compile
666 2007-03-30, Version 3.11.3
667 * configure: Have the configure-script define `HAVE_LIBKSTAT' instead
668 of the unused `COLLECT_KSTAT'.
670 2007-02-11, Version 3.11.2
671 * plugin: Catch NULL-pointer and try to fix them. Otherwise the
672 NULL-pointer may have been passed to `printf' which causes a
673 segfault with some libcs.
675 2007-02-10, Version 3.11.1
676 * df plugin: Some wrong defines have been fixed so the plugin works
678 * dns plugin: The usage of a struct has been fixed to work with
680 * processes plugin: Some missing defines have been added so the plugin
681 compiles cleanly under FreeBSD and presumably other UNIXes.
683 2006-12-22, Version 3.11.0
684 * collectd: The new command line option `-P' makes it easier for
685 distributors to change the location of PID-files.
686 * collectd: The daemon shuts down faster now which makes it easier to
687 write init.d-scripts for it.
688 * apache plugin: Increase the buffersize to 16k, because the 4k buffer
689 caused problems every now and then.
690 * df plugin: New config options allow to ignore certain mountpoints,
691 filesystem types or devices.
692 * dns plugin: The new dns plugin uses `libpcap' to capture DNS traffic
693 and interprets it. It collects traffic as well as qtype, opcode and
695 * email plugin: Sebastian Harl has contributed this plugin which
696 counts received mails in categories (e. g. ham, spam, virus), spam
697 score (as given by SpamAssassin) and check types.
698 * mbmon plugin: Flavio Stanchina has contributed this plugin which
699 uses `mbmon' to gather information from sensors on the motherboard.
700 * processes plugin: Collect detailed statistics for configured
701 processes, that's process and thread count, CPU usage, resident
702 segment size and pagefaults.
703 * multimeter plugin: Peter Holik contributed a new plugin which
705 * sensors plugin: Lubos Stanek has put much effort into improving this
706 plugin, including `extended naming', collection of voltage values
707 and the possibility to ignore certain values.
709 2006-12-21, Version 3.10.4
710 * Max Kellermann has identified a bug in the server routine: When
711 opening a socket fails the daemon will (re)try opening the socket in
712 an endless loop, ultimately leading to a `EMFILE' error.
714 2006-11-04, Version 3.10.3
715 * Lubos Stanek has identified a bug in the ntpd-plugin: When the
716 ntpd's reply was sent in more than one packet, the buffer size was
717 calculated incorrectly, resulting in the reading of uninitialized or
720 2006-11-01, Version 3.10.2
721 * The sample config file has been improved.
722 * Errors in the manpages have been corrected.
723 * The ping-plugin now adds hosts during initialization, not during
724 startup. This speeds up startup when no network connectivity is
725 available. Also, the hosts are being added later when the network is
727 * Improved BSD-support for the df-plugin.
728 * Fixed syntax errors in the swap-plugin for Mac OS X.
729 * Fix a wrong structure being passed to `getnameinfo' in the ntpd-
731 * Don't disable the mysql-plugin if connecting to the database fails
732 during initialization. Instead, try again in increasing intervals.
734 2006-07-19, Version 3.10.1
735 * A bug in the apcups plugin was fixed: Is the plugin is loaded, but
736 the apcups cannot be reached, unconnected sockets will pile up and
737 eventually lead to `Too many open files' errors.
739 2006-07-09, Version 3.10.0
740 * The `disk' plugin has been ported to Darwin.
741 * The `battery' plugin should work on many Apple computers now.
742 * The `traffic' plugin can now ignore certain interfaces. Also,
743 statistics for sent/received packets and errors have been added.
744 * A plugin to monitor APC UPSes using `apcupsd' has been added. Thanks
745 to Anthony Gialluca for contributing this plugin and providing me
746 with a test environment :)
747 * A plugin for monitoring an NTP instance and the local clock drift
750 2006-06-25, Version 3.9.4
751 * The Solaris code in the `swap' plugin has been changed to reflect
752 the numbers returned by `swap -s'. Thanks to Christophe Kalt for
754 * The debugging system has been fixed to work with the Sun libc.
755 * When built without librrd the variable `operating_mode' could be
756 uninitialized. Thanks to David Elliot for reporting the bug.
758 2006-06-01, Version 3.9.3
759 * Fixed the ping-plugin under FreeBSD and Mac OS X. Potentially other
760 operating systems also profit from the changes, but I wasn't able to
762 * Changed the build system to find the netinet-includes under FreeBSD
763 and therefore successfully build the `liboping' library there.
765 2006-05-09, Version 3.9.2
766 * Applied a patch to the `liboping' library. Due to a bug in the
767 sequence checking the `ping' plugin stopped working after
768 approximately 7.6 days.
770 2006-05-09, Version 3.8.5
771 * Applied a patch to the `liboping' library. Due to a bug in the
772 sequence checking the `ping' plugin stopped working after
773 approximately 7.6 days.
775 2006-04-21, Version 3.9.1
776 * Build issues with Solaris and possible other architectures have been
778 * Problems when building the `apache'-plugin without `libcurl' have
780 * A bug in the `ping' plugin has been fixed. Sorry folks.
782 2006-04-02, Version 3.9.0
783 * A plugin to monitor the Apache webserver has been added.
784 <http://httpd.apache.org/>
785 * A plugin to collect statistics about virtual servers using VServer.
786 <http://linux-vserver.org/> Thanks to Sebastian Harl for writing
788 * A plugin for wireless LAN cards has been added. It monitors signal
789 strength, link quality and noise ratio..
790 * A plugin for Apple hardware sensors has been added.
791 * An option to compile collectd with different `step' and `heartbeat'
792 settings has been added. The size of RRAs is no longer static but
793 calculated based on the settings for `step' and `width'.
794 * The `ping' plugin can now be configured to use a certain TTL.
795 * A plugin to monitor the hardware sensors of Apple computers has been
797 * The plugins `cpu', `memory', `processes' and `traffic' have been
798 ported to Mach/Darwin (Mac OS X).
799 * The `log mode' has been contributed by Christophe Kalt. It writes
800 the data into text files rather than RRD files.
802 2006-04-09, Version 3.8.4
803 * Applied patch by Vincent Stehlé which improves the disk-name
804 resolution in the `hddtemp' plugin for Linux systems.
806 2006-04-02, Version 3.8.3
807 * Applied a patch by James Byers: The MySQL plugin was not working
808 with MySQL 5.0.2 or later.
810 2006-03-14, Version 3.8.2
811 * `utils_mount.c' has been changed to not use the `MNTTAB' defined by
812 the GNU libc, because it points to `/etc/fstab' rather than
815 2006-03-13, Version 3.8.1
816 * Fixes for building collectd under FreeBSD, Mac OS X and Solaris.
817 * Fixes in the debian `postinst' and `init.d' scripts.
819 2006-03-09, Version 3.8.0
820 * The `ping' plugin no longer uses `libping' but a self written
821 library named `liboping'. With this library it's possible to ping
822 multiple IPv4 and IPv6 addresses and hostnames - in parallel.
824 2006-02-18, Version 3.7.2
825 * A simple bug in the `battery' plugin has been fixed. It should now
826 work with ACPI based batteries as well. Thanks to Sebastian for
828 * Fixing a bug that prevented collectd to be built without librrd.
829 Thanks to Werner Heuser for reporting it.
831 2006-02-04, Version 3.7.1
832 * The new network code has been improved to build with older versions
834 * Fix in `libping' sets the ICMP sequence on outgoing packets. Thanks
835 to Tommie Gannert for this patch.
837 2006-01-30, Version 3.7.0
838 * The `battery' plugin has been added. It collects information about
840 * The MySQL plugin has been improved: It now writes two more RRD
841 files, `mysql_qcache.rrd' and `mysql_threads.rrd'.
842 * The `cpufreq' plugin now reads another file since the file it did
843 read so far causes much overhead in the kernel. Also, you need root
844 to read the old file, but not to read the new one.
845 * The `hddtemp' plugin can now be configured to connect to another
846 address and/or port than localhost.
847 * The `df' plugin now prefers `statvfs' over `statfs'.
848 * The network code has been rewritten. collectd now supports unicast
849 and multicast, and IPv4 and IPv6. Also, the TTL of sent packages can
850 be set in the configfile.
852 2006-01-24, Version 3.6.2
853 * Due to a bug in the configfile handling collectd wouldn't start in
854 client mode. This released fixes this.
856 2006-01-20, Version 3.6.1
857 * Due to a bug in `configure.in' all modules and the binary were
858 linked against `libmysqlclient'. This issue is solved by this
861 2006-01-17, Version 3.6.0
862 * A config file has been added. This allows for loading only specific
864 * A `df' plugin has been added.
865 * A `mysql' plugin has been added.
866 * The `ping' plugin doesn't entirely give up hope when a socket error
867 occurred, but will back of and increase the intervals between tries.
869 2006-01-21, Version 3.5.2
870 * Fixed yet another bug in the signal handling.. Stupid typo..
871 * Improved the ping plugin to not give up on socket errors (backport
874 2005-12-18, Version 3.5.1
875 * The PID-file is now deleted correctly when shutting down the daemon.
876 * SIGINT and SIGTERM are now handled correctly.
878 2005-12-16, Version 3.5.0 (Revision 326)
879 * A bug in the `load' module under Solaris has been fixed.
880 * The `users' module has been contributed by Sebastian Harl. It counts
881 currently logged in users.
882 * The CPU module now works under FreeBSD without the use of
883 `libstatgrab', however SMP support is missing.
884 * The default directories for the RRD files and the PID file now
885 depend on the compile time setting of `localstatedir'.
887 2005-11-15, Version 3.4.0 (Revision 236)
888 * A PID-file is written to /var/run upon startup. Thanks to `Tommie'
889 from gentoo's bugzilla for writing the patch.
890 * The build dependency for librrd has been removed. Binaries built
891 without librrd are client-only and will multicast their value as
892 with the `-c' argument.
893 * A patch by Peter Holik adds a module for monitoring CPU frequencies.
894 * The newly introduced `-f' switch prevents daemon initialization
895 (forking, closing standard filehandles, etc.) Thanks to Alvaro
896 Barcellos for this patch.
898 2005-11-04, Version 3.3.0 (Revision 216)
899 * New modules have been added:
900 - `serial', for monitoring traffic on the serial interfaces
901 - `nfs', for graphing NFS procedure calls
902 - `tape', traffic from/to tape devices
903 * The memory.rrd now accepts more than 4Gig of memory.
905 2005-10-26, Version 3.2.0 (Revision 200)
906 * Support for graphing the processes has been added (thanks to Lyonel
908 * If reading from hddtemp fails collectd will increase the time
909 between polls up to one day.
910 * The init.d files have been improved.
911 * Problems with the spec file have been fixed.
913 2005-10-16, Version 3.1.0 (Revision 194)
914 * Added the `setsid' syscall to the startup code.
915 * Support for hddtemp has been added (thanks to Vincent Stehlé)
917 2005-09-30, Version 3.0.0 (Revision 184)
918 * The ability to send/receive data to/from the network (think
919 multicast) has been added.
920 * Modules have been split up into shared libraries can be loaded at
921 runtime. The biggest advantage is that the core program doesn't need
922 to be linked against an external library.
923 * A patch by George Kargiotakis has been applied: It fixes the sensors
924 behaviour then more than one sensor is being queried.
926 2005-09-16, Version 2.1.0 (Revision 172)
927 * A module for swap statistics has been added.
929 2005-09-09, Version 2.0.0 (Revision 135)
930 * Filenames can no longer be configured at program startup. The only
931 options as of this version are the directory and ping hosts.
932 * CPU statistics now include Wait-IO. If provided under Linux IRQ and
933 Soft-IRQ statistics are added to `System'.
934 * Diskstats now collect read and write bytes, not sectors.
935 * Ping statistics can now be collected for more than one host. There
936 is no default any more: If no host is given no host will be pinged.
937 * A self-written patch for libping has been applied so it builds
940 2005-09-01, Version 1.8.1 (Revision 123)
941 * Much improved configure-script: libraries and features may now be
943 * More detailed warnings/error messages when RRD update fails.
945 2005-08-29, Version 1.8.0:
946 * Support for collecting disk statistics under Solaris.
948 2005-08-25, Version 1.7.0:
949 * Support for libstatgrab[1] for load, memory usage and network
950 traffic. CPU- and disk-usage are not (yet) supported, since
951 libstatgrab returns insufficient information. I will contact the
953 * Improved the CPU-initialization code for Solaris. Apparently CPUs
954 aren't necessarily counted linear which is now handled correctly.
955 [1]: http://www.i-scream.org/libstatgrab/
957 2005-08-21, Version 1.6.0:
958 * Basic support for Solaris: System load and cpu-usage can be
959 collected under Solaris, too. Other stats will follow later.
960 * Many fixes in the autoconf-script
961 * Collection/Museum scripts have been added under contrib/museum
962 * collectd may now be started in unprivileged mode, though ping
963 statistics will not work.
965 2005-07-17, Version 1.5.1:
966 * Diskstats-RRDs now use major/minor for naming. Some systems have
967 weird strings as disk-names..
969 2005-07-17, Version 1.5:
970 * A new module, diskstats, has been added. It collects information
971 about the disks and partitions.
973 2005-07-11, Version 1.4.2:
974 * The meminfo module has been changed to work with more platforms
975 and/or kernel versions.
977 2005-07-10, Version 1.4.1: Correct traffic stats
978 * The traffic rrd-file is now created with DS-type `COUNTER' which I
979 forgot to correct when I changed that module.
981 2005-07-09, Version 1.4: More traffic stats
982 * Traffic is now collected for all interfaces that can be found
983 * Temperature-statistics are read from lm-sensors if available
985 2005-07-08, Version 1.3: CPU stats
986 * Collecting CPU statistics now
988 2004-07-12, Version 1.2: Using syslog
989 * collectd is now using the syslog facility to report errors, warnings
991 * The default directory is now /var/db/collectd
993 2004-07-10, Version 1.1: Minor changes
994 * Nothing really useful to say ;)
996 2004-07-09, Version 1.0: Initial Version
997 * The following modules are provided:
projects / collectd.git / blob