The system statistics collection daemon. Please send Pull Requests here!
system.linux.memory.available metric has been added. Thanks to @octo. #4275system.paging.faults metric has been added. Thanks to @octo. #4278plugin_dispatch_metric_family() function has been changed to handle metric families with zero metrics gracefully. Thanks to @octo. #4257FPCOUNTER (floating point counter) metric type has been added. Thanks to @octo. #4266metric_family_t. The schema used has been migrated to make use of RedisTimeSeries instead of a sorted set. Thanks to @octo. #4258-Wpedantic warnings in collectd core. Thanks to @eero-t. #4243Version 6.0.0.rc0 is a preview for the collectd 6.0 release. We expect further breaking changes. This release is not production ready.
We expect that the metrics produced by the following plugins are in their final form and will not change before a final 6.0 release. This is not guaranteed however.
The collectd 6 wiki page documents how the metrics provided by these plugins have changed since collectd 5.
A large number of plugins work in compatibility mode and are disabled by default. These plugins will get breaking updates in future collectd 6 releases.
Plugins in compatibility mode still produce the old data structure, value_list_t, and a heuristic automatically converts this data structure to the new format. Over time we expect that these plugins will be migrated to produce collectd 6 metrics natively, changing the produced metrics. These plugins are not built by default for this reason.
You can use the --enable-compatibility-mode configure flag to build plugins in compatibility mode:
./configure --enable-compatibility-mode
The following plugins have been updated to work with the new metric schema. We expect no fundamental changes to the schema they produce, but this is not guaranteed at this point in time.
value_list_t data structure and supporting functions have been moved into a separate component. Thanks to @octo. #4195metric_t and metric_family_t data structures hold metrics that are identified by a label set. Thanks to @octo. #3508sstrncpy utility function has been improved to handle all inputs gracefully. Thanks to @octo. #4233strbuf utility library has been added. It simplifies building strings iteratively. Thanks to @octo. #3481--enable-compatibility-mode argument has been added to control whether or not to build plugins using the compatibility mode. Such plugins are considered "unstable" and the metrics reported by these plugins will change in the future. Thanks to @octo. #4236PUTMETRIC available as command. Thanks to @hnez. #4074level-zero is available. Thanks to @eero-t. #4239NULL pointer in debug mode has been fixed. Thanks to @sonertari. #3893system.memory.limit metric has been added. The "slab" and "available" states have been removed, the "shared" state was added (Linux only). Utilization reporting has been changed to report a ratio (fraction of 1) rather than a percentage. Thanks to @octo. #4224target_info metric family. Thanks to @octo. #4213collectd: Build fix: duplicate switch case has been removed. Thanks to Sebastian Schmidt. #3536 collectd: Updated specfile for EL8. Thanks to Fabien Wernli. #3346 types.db(5): Documentation of metric definitions has been improved. Thanks to @octo. #3458 collection3: Some small titles has been improved from {type_instance} to {instance}. Thanks to Christian Tacke. #3476 AMQP1 plugin: New options to limit send queue length has been added. Thanks to Ryan McCabe. #3432 AMQP plugin: Updated option to allow multiple hosts to support failover. Thanks to Märt Bakhoff. #3410 capabilities plugin: Conditionalized return type for microhttpd callback functions. Thanks to José M. Guisado. #3512 Ceph plugin: An incorrect close on file descriptor 0 has been fixed. Thanks to @octo. #3459 CPU plugin: Implementation for NetBSD has been added. Thanks to Håvard Eidnes, Edgar Fuß. #3496 Curl Jolokia plugin: New plugin has been added to integrate jolokia to fetch jmx counters via HTTP/json. Thanks to Wilfried Goesgens. #2470 cURL plugin: Memory leak has been fixed. Thanks to Barbara Kaczorowska. #3547 Disk plugin: Provided an udev rule with ID_SERIAL based attribute so disk and partition data don't get mixed incorrectly in udev-based disk naming. Thanks to Maciej S. Szmigiero. #3441 DPDK Telemetry plugin: Build issues has been fixed. Thanks to Fabrice Fontaine. #3439 Entropy plugin: Implementation for NetBSD has been added. Thanks to Håvard Eidnes, Edgar Fuß. #3497 InfiniBand plugin: New plugin to collect metrics about IB ports has been added. Thanks to Luke Yeager. #3494 InfiniBand plugin: The build has been fixed by linking with libignorelist. Thanks to Luke Yeager. #3516 Intel PMU plugin: Check for libjevents version has been improved. Thanks to Kamil Wiatrowski. #3407 Intel PMU plugin: The possible crash on plugin init has been fixed. Thanks to Kamil Wiatrowski. #3480 IntelRDT plugin: A build issue of the plugin's unit test has been fixed. Thanks to @octo. #3566 IntelRDT plugin: NaN values in csv output has been fixed. Thanks to Michał Aleksiński, Paweł Tomaszewski. #3503 IRQ plugin: Implementation for NetBSD has been added. Thanks to Håvard Eidnes, Edgar Fuß. #3498 Mdevents plugin: New plugin to generate notifications about events in RAID arrays. Thanks to Krzysztof Kazimierczak, Maciej Fijałkowskii, Michał Kobyliński. #2841 Memory plugin: Implementation for NetBSD has been added. Thanks to Håvard Eidnes, Edgar Fuß. #3499 MQTT plugin: A problem with stuck after 20 (qos=1) messages has been fixed. Thanks to Viulian. #2730 MQTT plugin: Resubscribe after a reconnect. Thanks to Maciej S. Szmigiero. #3452 MySQL plugin: Compatibility with MariaDB >=10.5 has been fixed. Thanks to Alexander Meshcheryakov. #3548 MySQL plugin: Reporting of the fields Slave_IO_Running and Slave_SQL_Running has been added. Thanks to Thomas Mieslinger. #3463 Netlink plugin: VFs statistics and link info has been added. Thanks to Kamil Wiatrowski. #3487 Netstat UDP plugin: New plugin ((currently NetBSD-only) to report UDP summary statistics has been aded. Thanks to Håvard Eidnes, Edgar Fuß. #3502 Network plugin: Initialization of sockent_t has been simplified. Thanks to @octo, Dagobert Michelsen. #3543 NFS plugin: NetBSD implementation has been fixed, undefined suppress_warning variable has been removed. Thanks to Edgar Fuß. #3495 OpenVPN plugin: Parsing of empty fields has been fixed. Thanks to @rpv-tomsk. #3425 Processes plugin: Implementation for NetBSD has been added. Thanks to Håvard Eidnes, Edgar Fuß. #3500 Processes plugin: Size of reading buffer for /proc/stat has been increased. Thanks to Mhumpula. #3479 Python plugin: Error-handling code of PyType_Ready has been added. Thanks to Jia Zhouyang. #3402 Sensors plugin: The documentation has been improved. Thanks to @octo. #3443 Slurm plugin: Compatibility with Slurm versions >= 20.02 has been provided. Thanks to Pablo Llopis. #3518 SMART plugin: SMART plugin has been extended with NVMe device functionality. Thanks to Bartłomiej Kotłowski, Paweł Żak, Sławomir Strehlau. #3510 SNMP Agent plugin: A strncat() truncation warning has been fixed. Thanks to @octo. #3564 SNMP plugin: Count option was added allowing to gather the number of table entries (matching given criteria) rather than their values. Thanks to Edgar Fuß. #3504 Swap plugin: Implementation for NetBSD has been added. Thanks to Håvard Eidnes, Edgar Fuß. #3501 UBI plugin: Data source type has been fixed from counter to gauge. Thanks to Florian Eckert. #3486 Varnish plugin: Added varnish 6 support. Thanks to Charly Koza, Ismael Puerto. #3445 Varnish plugin: Target in category for varnish 6 has been added. Thanks to Charly Koza. #3446 Write HTTP plugin: libcurl default HTTP response has been moved to a buffer instead of stdout. Thanks to Duane Waddle. #3263 Write Prometheus plugin: fix for libmicrohttpd api change. Thanks to Bernd Zeimetz. #3514 Write Sensu plugin: IncludeSource option has been added. Thanks to Märt Bakhoff. #3398 Zookeeper plugin: Missing 3.5 mntr fields has been added. Thanks to Théophane Charbonnier. #3450 Zookeeper plugin: Missing mntr fields has been fixed. Thanks to Théophane Charbonnier. #3449
New features
Bug fixes
Bugfixes:
syslog plugin: Don't fail if syslog loglevel doesn't match. Thanks to Fabien Wernli. #3236 #3238 collectd: Fix ssnprintf wrapper. Thanks to Fabien Wernli. #3237 rdt plugin: Fix compile time issues. Thanks to Matthias Runge. #3245
Bugfixes / cleanups / refactorings
collectd: redhat spec: fix build due to new upstream plugins. Thanks to Fabien Wernli. #3175 collectd: regex match: Fix unexpected match with empty meta data . Thanks to Takuro Ashie. #3178 collectd: Fix return value or loglevel for several plugins. Thanks to Fabien Wernli. #3182 *collectd: Add standard include early or _FILE_OFFSET_BITS will have definition … . Thanks to Dagobert Michelsen. #3193 collectd: Use GCC-specific flags only when compiling with GCC. Thanks to Dagobert Michelsen. #3195 collectd: Use test_utils_proc_pids only when compiling the plugin that uses it. Thanks to Dagobert Michelsen. #3197 DNS plugin: Do not use headers from glibc. Thanks to Pavel Rochnyak. #3156, #3145 collectd: Add missing definitions for libnetsnmpagent. Thanks to Dagobert Michelsen. #3203 collectd: Move Makefile rules for pid_test inside conditional for code. Thanks to Dagobert Michelsen. #3206 collectd: Recover setlocale() call in src/daemon/collectd.c do_init(). Thanks to Pavel Rochnyak. #3214, #3181 collectd: Add snprintf wrapper for GCC 8.2/3. Thanks to zebity. #3153, #2895, #3038 collectd: Fix bug that leads to CPPFLAGS gets overridden with CFLAGS when libxmms is enabled. Thanks to Dagobert Michelsen. #3207 Write_Riemann plugin: Copy MetaData to Riemann events in write_riemann. Thanks to Romain Tartière. #3158 virt plugin: Fix memory leak with libvirt MetadataXPath enabled. Thanks to Pavel Rochnyak. #3225, #3230
Build System: configure.ac: option --with-libxml2 has been added. Thanks to Dimitrios Apostolou, @rpv-tomsk. #2864
Build System: configure.ac: run dpdk build tests only if pkgconfig fails. Thanks to Luca Boccassi, @rpv-tomsk. #3015
Build System: The "df" plugin is now built when getmntent_r() is available. Thanks to @octo. #3095
Build System: The ability to turn on collectd "debug" feature in RPMs has been added. Thanks to dehotot. #2755
collectd: A new UNKNOWN state as the initial state of metrics has been added. Thanks to Luis Fernández Álvarez, @octo. #2976
collectd: Base port to Windows. Thanks to Sean Campbell. #2810
collectd: Code ownership of five plugins has been handed out to folks from Intel. Thanks to @octo. #3053
collectd: config parser: Improved error reporting on global options. Thanks to @rpv-tomsk. #2813
collectd: daemon: make plugin_dispatch_multivalue() obey write queue limits. Thanks to Adam Romanek. #2898
collectd: Macros STRERROR and STRERRNO have been added. Thanks to @octo. #2519
collectd: Plugin name field has been added to plugin context to improve error reporting. Thanks to @rpv-tomsk. #2821
collectd-tg: Use CLOCK_REALTIME for collectd-tg times. Thanks to Andrew Bays. #2837
tree-wide: Don't initialize static pointers to NULL, use bool from stdbool.h (instead of _Bool). Thanks to @rubenk. #2771, #2772
tree-wide: Replace zu with PRIsz and llu with PRIu64. Thanks to Sean Campbell. #2512
tree-wide: Use interval value from plugin context, do not set vl->interval in plugins more. Thanks to @rpv-tomsk. #2847
tree-wide: Utilities and libraries have been moved to src/utils/. Thanks to @octo. #2961
AMPQ1 plugin: A new plugin to write to amqp1 protocol. Thanks to Andy Smith. #2618
Chrony plugin: Ignoring late responses has been added. Thanks to Miroslav Lichvar, @rpv-tomsk. #2896
CPUFreq plugin: Read number of p-state transitions and time spent in each p-state. Thanks to Sexton Rory. #2803
cURL, cURL-XML plugins: Option Interval has been added. Thanks to @rpv-tomsk. #2847
Disk plugin: Report number of in progress disk IO requests on FreeBSD. Thanks to Nathan Huff. #2878
Exec plugin: Dynamic allocation of grname buffer has been added. Thanks to sreedi, @octo. #2937
GPU NVML plugin: New plugin to collect NVIDIA GPU stats. Thanks to Evgeny Naumov. #2923
gRPC plugin: The VerifyPeer option for servers has been added. Thanks to @octo. #2593
Intel RDT plugin: Support for groups of PIDs has been added. Thanks to Wojciech Andralojc, Mateusz Starzyk, Michal Aleksinski. #2891
IPMI plugin: Config options SELSensor and SELIgnoreSelected have been added. Thanks to Mariusz Szafranski. #2796
Modbus plugin: Support for 64 bit vals has been added, support for CDAB endian 32-bit modbus polls has been added. Thanks to Anthony Vickers, PJ Bostley. #2670, #2660
Modbus plugin: The Scale and Shift metrics have been added. Thanks to cekstam. #2729
Netlink plugin: Handle new counter from Linux kernel version 4.6+. Thanks to @rpv-tomsk. #2767
Network plugin: Option BindAddress has been added. Thanks to Ofir Hermesh. #2831
Ping plugin: An AddressFamily configuration option has been added. Thanks to 依云 lilydjwg. #2961
OVS Stats plugin: Extended metrics ovs-dpdk have been added. Thanks to Matteo Croce, Ryan McCabe. #3000
OVS Stats plugin: Support of bond interface and a InterfaceStats config option have been added. Thanks to Andrew Bays. #2880
PCIe Errors plugin: New plugin to read PCIe errors. Thanks to Kamil Wiatrowski. #2733
Processes plugin: Support for Linux Delay Accounting has been added. Thanks to @octo. #2598
Redis plugin: Keyspace hitratio metric has been added, metric operations_per_second has been removed, an option for connecting via UNIX socket has been added. Thanks to @rpv-tomsk. #2838, #2845, #2904
RouterOS plugin: Support for temperature and voltage data has been added, use MAC-address when Radio-name is missing. Thanks to @rpv-tomsk. #2851, #2854
RRDCacheD plugin: Time resolution has been improved to microseconds. Thanks to Brian T. O'Neill. #3065
Sensors plugin: Checks for upper limit of SENSORS_API_VERSION have been removed, support for libsensors older than 3.0.0 has been dropped. Thanks to @rpv-tomsk. #3013, #3014
SNMP plugin: New options PluginInstance, TypeInstance, TypeInstanceOID, PluginInstanceOID, FilterOID, FilterValues and FilterIgnoreSelected have been added. Thanks to @rpv-tomsk. #2817, #2819
SNMP Agent plugin: Multiple key indexes to snmp table and other new features have been added, refactoring, coverity scan issues have been fixed. Thanks to Marcin Mozejko. #2702, #2844
Swap plugin: Support for Linux 2.4 has been dropped. Thanks to @rpv-tomsk. #2979
Turbostat plugin: Configuration option RestoreAffinityPolicy has been added. Thanks to Pablo Llopis. #2627
Turbostat plugin: New metrics P-states, Turboboost, Platform TDP, Uncore bus ratio have been added. Thanks to Sexton Rory. #2806
Turbostat plugin: Support of reporting GPU power on SKL has been added. Thanks to Gordon Kelly. #2605
virt plugin: Allow read Hostname from libvirt metadata. Thanks to Mehdi ABAAKOUK. #2807
virt plugin: Block info statistics for disk devices have been added. Thanks to Radoslaw Jablonski. #2874
Wireless plugin: A bitrate metric has been added. Thanks to @octo. #2950
Write Graphite, Write Kafka plugins: Support for Graphite 1.1+ tag has been added. Thanks to: Dan Cech. #2631
Write Prometheus plugin: Option Host has been added. Thanks to @rpv-tomsk. #2969
Write Stackdriver plugin: New plugin to write to Google Stackdriver Monitoring. Thanks to @octo. #2472
Write Syslog plugin: "write_syslog" plugin writes values lists as syslog messages. Thanks to Shirly Radco. #3019
Build System: A warning that pkgdatadir and pkglibdir were previously defined has been fixed, additional plugins have been enabled, GNULIB_DIR has been added to LDFLAGS in configure.ac on Windows. Thanks to S
ean Campbell. #2907, #2885, #2882
Build System: Including utils/mount/mount.h has been fixed. Thanks to @octo. #3097
Build System: The amount of output from ./configure has been reduced, rendering of collectd-lua(5) manpage has been fixed, don't hide errors when creating manpage. Thanks to @rubenk. #3086, #3088, #3092
collectd: A bug in c_avl_iterator_prev has been fixed. Thanks to volth. #2917
collectd: A stringop compiler warning has been fixed. Thanks to @rubenk, Juan Osorio Robles. #3021
collectd: An invalid memory access in the strjoin() function has been fixed. Thanks to @octo. #3063
collectd: collectd binary has been refactored. Thanks to Sean Campbell, Sebastian Harl. #2745
collectd: collectdmon cannot exit command line options parse loop has been fixed. Thanks to takahashi-tsc. #2774
collectd: Endianness checks for AIX have been added, gcc issue on Mac byteorder has been fixed, fallback for endianness conversion has been added. Thanks to Dagobert Michelsen. #2761, #2741, #2717
collectd: Handle failure of simple config callbacks. Thanks to @rubenk. #3085
collectd: Include kstat.h if available to provide kstat_ctl_t, include kstat.h when available. Thanks to Dagobert Michelsen. #2716, #2711
collectd: Parsing option for avoiding making BaseDir has been fixed. Thanks to Mariusz Białończyk. #2856
collectd: Remove empty cmd_listval_t data structure and related no-op code. Thanks to @rpv-tomsk. #2779
collectd: src/daemon/plugin.c: Refactor plugin_load_file(), src/utils_format_json.c: Remove chatty debug messages. Thanks to @octo. #2558, #2938
collectd: Stop poisoning function in debug mode. Thanks to @rubenk. #2804
collectd: The number of allocations when parsing types.db has been reduced. Thanks to @rubenk. #3091
collectd: The organization of the source repository has been improved. Thanks to @octo. #2961
collectd: Typos have been fixed. Thanks to @octo, Jakub Jankowski, William Pursell. #2944, #2692, #2643
tree-wide: cleanup: cf_util_get* instead of local copy in plugins, prefixed error reporting. Thanks to @rpv-tomsk. #2833
tree-wide: Some style issues have been fixed. Thanks to @rubenk. #3022
tree-wide: sstrerror() has been replaced with STRERRNO. Thanks to @rpv-tomsk. #2735
AMQP1 plugin: Potential memory leaks found via scan-build have been fixed, a typo in error log message has been fixed, cleanups. Thanks to Andy Smith, Andrew Bays, @rubenk. #2802, #2876, #2797
Barometer plugin: Support to libi2c-4.0 has been added. Thanks to @rpv-tomsk. #2783
DBI, Oracle, PostgreSQL plugins: Fixes and improvements. Thanks to @rpv-tomsk. #1705
Disk plugin: HAVE_UDEV_H has been changed to HAVE_LIBUDEV_H. Thanks to Dylan Stephano-Shachter. #2668
Disk plugin: In linux, reset the disk when it disappears from /proc/diskstats. Thanks to Nikita Kozlov, @rpv-tomsk. #2551
DPDK Events, DPDK Stats plugins: Buffer size for parsing lcores has been increased, a deprecation warning has been fixed, runtime config file path has been fixed. Thanks to Kevin Laatz. #2722, #2840, #2924
DPDK Stats plugin: A compilation issue has been fixed. Thanks to Volodymyr Mytnyk. #2524
GPS plugin: Build with gpsd version 3.18 has been fixed. Thanks to Baruch Siach. #2947
Intel RDT plugin: Compiler warnings have been fixed. Thanks to @rubenk. #3104
Log Logstash plugin: Non-portable struct initialization with {} has been fixed. Thanks to @octo. #2988
LUA plugin: A memory leak has been fixed. Thanks to @rubenk. #3090
MySQL plugin: Properly cleanup dropped MySQL connections. Thanks to Dhrupad Bhardwaj. #2704
Netlink plugin: Truncation warnings have been fixed. Thanks to @rubenk. #2777
NFS plugin: Message Unexpected number of fields for NFSv4 server statistics: 62 has been fixed. Thanks to Yedidyah Bar David. #2076
NFS plugin: Number of fields for NFSv4 has been fixed. Thanks to Jan-Philipp Litza. #2915
Notify Email plugin: All notification parameters have been included into email. Thanks to @rpv-tomsk. #2834
NTPd plugin: Don't treat normal peers as refclocks, skip 0.0.0.0 hosts in ntpd plugin. Thanks to @rpv-tomsk, Ivan Kurnosov. #2822, #2376
OAuth plugin: src/utils_oauth.c: Renew OAuth tokens 30 seconds before they expire. Thanks to @octo. #2970
OVS Stats plugin: A macro to populate counters list has been added, value of OpenFlow has been corrected. Thanks to Matteo Croce. #2966, #2963
OVS Stats plugin: Code style, cleanup and improvements. Thanks to @rpv-tomsk. #3011, #3012
OVS Stats, OVS Events plugins: utils_ovs: Avoid potential access of freed memory, fixes. Thanks to Ciara Loftus, Mark Kavanagh. #2801, #2731
Processes plugin: Compilation has been fixed when ps_delay() is not used. Thanks to @rpv-tomsk. #2610
Python plugin: A compilation warning with Python 3.7 has been fixed. Thanks to Manoj Srivastava. #3042
Redis plugin: Bugfixes, extended error reporting, persistent connections and parallel polling, ability to select db for queries has been fixed. Thanks to @rpv-tomsk, skob. #2826, #2789
Router OS plugin: Unset radio-name showing up as "(null)" has been fixed. Thanks to melak. #2740
RRDCacheD plugin: Cleanup rrdcached plugin a bit. Thanks to @rpv-tomsk. #3080
RRDTool plugin: Error reporting has been extended. Thanks to @rpv-tomsk. #2825
Sensors plugin: Support for humidity sensors has been added. Thanks to Sarah Fischmann. #2913
Sensu, OVS Stat, Turbostat, virt, OAuth, Write Prometheus, Intel RDT plugins: Compiler warnings have been fixed. Thanks to @rubenk. #3093, #3098, #3099, #3100, #3102, #3103, #3104
virt plugin: Code do {} while(0) around macro has been removed. Thanks to @octo. #2579
virt plugin: Compiler warnings, a segfault in libvirt, typo in error messages have been fixed. Thanks to Antoine Naud, @rubenk, sarah niuxu18. #2808, #2919, #2957
virt plugin: Optional virDomainGetCPUStats() has been removed from main flow, cleanup. Thanks to @rpv-tomsk. #2972, #2978
virt plugin: Tracking of VM state changes has been fixed. Thanks to Radoslaw Jablonski. #2701
Write MongoDB plugin: Plugin dependencies have been fixed. Thanks to @rpv-tomsk. #3010
Write Prometheus plugin: A compilation issue on Mac OS X has been fixed. Thanks to @octo. #3059
Write Redis plugin: Bug "max_set_duration deletes unexpected data" has been fixed. Thanks to takahashi-tsc. #2773
Write Stackdriver plugin: Potential NULL dereference and error reporting have been fixed. Thanks to @octo. #2960
collectd.conf(5): a typo has been fixed, the tail plugin's documentation has been improved. Thanks to @rubenk, @octo. #3087, #2994
collectd.conf(5): virt: Instances option has been documented, a clarifying example has been added. Thanks to @rpv-tomsk, Fabien Wernli. #2990, #2903
collectd-python: Import configuration option has been documented. Thanks to Tyler Harper. #2985
collectd-snmp.pod: Document thread usage correctly. Thanks to Nathan Ward. #3078
CONTRIBUTING.md: Improve wording around ChangeLog; fix example, document the new change log requirement / behavior. Thanks to @octo. #3061, #3054
docs/review_comments.md: document with frequent review comments has been started. Thanks to @octo. #2964
README: Include compiler defenses suggestion, do not point users to non-existing file. Thanks to Kevin Laatz, @rubenk. #2721, #2045