Version 5.6

List-of-versions

Version 5.6 has been released on Sunday, September 11^th 2016. The newest release is 5.6.2 which as been released on Wednesday, November 30^th 2016. This version is currently supported.

Changes

Release 5.6.0

Released on Sunday, September 11^th 2016.

Build system: An option to to avoid building the DF plugin against XFS has been added. Thanks to Ruben Kerkhof. #1878
Build system: Autoconf ≥ 2.60, a C99-capable compiler and pkg-config are now required. Thanks to Ruben Kerkhof.
Build system: Building with -Werror is now optional. Thanks to Ruben Kerkhof. #1222
Build system: Many compilation issues on non-Linux platforms have been fixed, leading to wider plugin support. Thanks to Ruben Kerkhof, Dagobert Michelsen, Havard Eidnes and Robert Viduya.
Build system: The configuration summary now also ends up in config.log. Thanks to Sebastian Harl.
collectd: All command-line options now override global options from the config file. Thanks to Sebastian Harl. #366
collectd: A number of unit tests for commonly used functions have been added. Thanks to Florian Forster.
collectd: Plugins start up and read timeouts are now logged. Thanks to Marc Fournier. #1293, #1254
collectd: Support for a timeout has been added to FLUSH callbacks. Thanks to Manuel Luis Sanmartín Rozada.
collectd: The -T command line switch now reports more errors. Thanks to Corey Kosak. #1642
collectd: The max size of value list elements (DATA_MAX_NAME_LEN) has been doubled and is now configurable at build time. Thanks to Amy Lin, Florian Forster and Radu Brumariu. #1120
Set target: The MetaData option has been added. Thanks to Yves Mettier and Kevin Bowling. #1106, #1656, #1913
AMQP plugin, Write HTTP plugin, Write Kafka plugin: Support for libyajl < 2 has been added. Thanks to Florian Forster.
APC UPS plugin: Parsing of end markers has been fixed. Thanks to Florian Forster #617
APC UPS plugin: The PersistentConnection option has been added. Thanks to Florian Forster #617
Ceph plugin, DNS plugin, Exec plugin, IPTables plugin, Ping plugin, turbostat plugin: When running unprivileged, these plugins will now warn about insuffiscient permissions or capabilities(7). Thanks to Marc Fournier. #1530
Chrony plugin: This new plugin collects NTP data from the chrony NTP server. Thanks to Claudius Zingerli. #1548
cpusleep plugin: This new plugin measures time spent by CPU in deep sleep mode. Thanks to Rinigus. #1826
CPU plugin: The ReportNumCpu option has been added. Thanks to Fabien Wernli.
cURL plugin, cURL-JSON plugin, cURL-XML plugin: The new Statistics reports various per-HTTP connection timers. Thanks to Sebastian Harl. #1004
DBI plugin: The Interval option has been added to Database blocks. Thanks to Michal Bebjak.
Disk plugin: Support for FreeBSD has been added. Thanks to Xin Li, Brad Davis, Ruben Kerfhof and Kevin Bowling.
Empty Counter match: Support for derives has been implemented. Thanks to Florian Forster. #1813
GenericJMX plugin: Support for TabularData and the PluginName option have been added. Thanks to David Crane. #1290, #1291
GPS plugin: This new plugin reports the number of sattelites seen by and precision of a GPS receiver. Thanks to Nicolas Jourden. #1346
gRPC plugin: This new client and server plugin allows sending and receiving metrics using the gRPC protocol. Comparable to the UnixSock plugin, but using TCP and TLS. Thanks to Sebastian Harl and Florian Forster.
Interface plugin: Reporting dropped packets has been added. Thanks to Marc Falzon. #1555
Interface plugin: The ReportInactive has been added, letting users skip inactive network interfaces. Thanks to Rinigus. #1791
Interface plugin: The new, Solaris-only UniqueName option has been added. Thanks to Yoga Ramalingam. #1416
Lua plugin: This new language binding allows writing plugins using the Lua programming language. Thanks to Julien Ammous, Florian Forster and Ruben Kerkhof.
Memory plugin: Reporting of ARC memory on Solaris has been added. Thanks to Brian ONeill.
MQTT plugin: This new plugin sends metrics to and/or receives metrics from an MQTT broker. Thanks to Marc Falzon, Jan-Piet Mens, Nicholas Humfrey and Florian Forster. #805, #1124
MySQL plugin: Connection to the database server can now be done over SSL. Thanks to Brian Lalor. #1256
MySQL plugin: Monitoring slow queries has been added. Thanks to skob. #1773
MySQL plugin: mysql_bpool_pages-flushed has been renamed to mysql_bpool_counters-pages_flushed because the value is cumulative. Thanks to Marek Becka.
MySQL plugin: Support for Galera statistics has been added. Thanks to Rachid Zarouali. #1849
MySQL plugin: Support for InnoDB metrics was improved. Thanks to Aman Gupta. #1111
MySQL plugin: The mysql_sort type has been split into 3 different types. Thanks to Pavel Rochnyack. #1592
Network plugin: Decryption error logging has been improved. Thanks to Pavel Rochnyack. #1735
Notify Nagios plugin: This new plugin sends notifications to Nagios as a passive check result. Thanks to Florian Forster.
NTPd plugin: The plugin now detects if the ntp daemon reports nanoseconds instead of microseconds. Thanks to Matwey V. Kornilov. #1783
OpenLDAP plugin: Several connection-related improvements have been made. Thanks to Marc Fournier. #1308
OpenLDAP plugin: Support for "simple authentication" has been added. Thanks to Marek Becka. #1087
Ping plugin: The Size option has been added, allowing the ICMP data payload size to be configured. Thanks to Witold Baryluk. #1395
PostgreSQL plugin, DBI plugin, Oracle plugin: The new PluginInstanceFrom option has been added. Thanks to Pavel Rochnyack. #1707
PowerDNS plugin: The recursor metrics have been updated to 3.7.3 and missing rr types have been added. Thanks to Ruben Kerkhof.
Processes plugin: Counting of context switches was added for Linux. Thanks to Manuel Luis Sanmartín Rozada. #1036
Processes plugin: Improve reliability of thread counts on Linux. Thanks to Manuel Luis Sanmartín Rozada.
Python plugin: Minimal Python version requirement has been bumped to 2.6. Thanks to Ruben Kerkhof. #1864
Redis plugin: Several additional metrics are now collected. Thanks to Marc Falzon and Matteo Contrini. #1807, #1483
Sensors plugin: The UseLabels option has been added. Thanks to Christian Fetzer.
SMART plugin: The new IgnoreSleepMode option has been added. Thanks to Scott Talbert. #1770
SMART plugin: The new UseSerial option allows identifying devices in a stable way. Thanks to Scott Talbert. #1794
SNMP plugin: The IpAddress can now be used for instances. Thanks to Vincent Bernat. #1397
StatsD plugin: Latency calculation histogram is now able to shrink automatically to optimal size. Thanks to Pavel Rochnyack. #1622
StatsD plugin: The CounterSum option has been added. Thanks to Florian Forster. #929, #1282, #1311
UUID plugin: The plugin now also looks in in smbios system table and /sys/class/dmi. Thanks to Ruben Kerkhof. #1490
virt plugin: The PluginInstanceFormat option has been added. Thanks to Ruben Kerkhof. #1100
Write Graphite plugin: The ReconnectInterval option has been added. Thanks to Toni Moreno and Florian Forster.
Write HTTP plugin: A KairosDB formatter has been added. Thanks to Aurélien Rougemont. #1809
Write HTTP plugin: Notifications are now handled by this plugin. Thanks to Florian Forster.
Write HTTP plugin: The LogHttpError option has been added. Thanks to vzubko.
Write HTTP plugin: The new Headers option allows setting custom HTTP headers in outgoing requests. Thanks to Brandon Arp. #1634
Write Kafka plugin: Key handling has been made more comprehensive and reliable. Thanks to Florian Forster, Pierre-Yves Ritschard and Vincent Bernat. #1765, #1695, #1393
Write Redis plugin: The Database, MaxSetSize, Prefix and StoreRates options have been added. Thanks to Brian Kelly and Sebastian Pfahl.
Write Riemann plugin: The new BatchFlushTimeout and Timeout option have been added. Thanks to Pierre-Yves Ritschard and Gergely Nagy.
Write Riemann plugin: This plugin now requires the riemann-c-client library, version 1.6.0+. This adds support for submitting values to Riemann over TLS. Thanks to Gergely Nagy. #986
Write TSDB plugin, Write Sensu plugin, Write Riemann plugin, Write Graphite plugin, Write TSDB plugin: TCP keepalive is now enabled, helping graceful recovery from unclean network disconnections. Thanks to Marc Fournier. #1549
xencpu plugin: This new plugin collects XEN Hypervisor CPU stats. Thanks to Pavel Rochnyack. #1608
ZFS ARC plugin: Several new statistics have been added and a couple of obsolete ones removed. Thanks to Brad Davis, Brian ONeill and Ruben Kerkhof.
Zone plugin: This new plugin reads per-zone CPU usage on Solaris. Thanks to Mathijs Mohlmann and Dagobert Michelsen.

Release 5.6.1

Released on Friday, October 7^th 2016.

Build system: Unnecessary linking of the Write Graphite plugin with libyajl has been removed. Thanks to Marc Fournier. Debian#839771, #1976
collectd: A bug in the FlushInterval option that caused a segmentation fault in the Write HTTP plugin has been fixed. Thanks to Florian Forster. #1954
Apache plugin: A syntax error has been fixed. Thanks to Florian Forster.
cURL-JSON plugin: A segmentation fault that occurred when handling JSON with unexpected structure has been fixed. Thanks to Florian Forster. #1896
PostgreSQL plugin: Handling of NULL values in the query_plans and query_plans_by_table queries has been fixed. Thanks to Bernd Zeimetz. #1905
RRDCacheD plugin: Reconnection behavior has been added. Thanks to Sebastian Harl. Debian#657877
VServer plugin: Use of a deprecated API (readdir_r()) has been fixed. Thanks to Sebastian Harl.
Write Graphite plugin: Make default values configurable at compile time again. Thanks to Florian Forster. #1953
Write HTTP plugin: A bug has been fixed that lead to flush callbacks being registered twice. Thanks to Florian Forster. #1955

Release 5.6.2

Released on Wednesday, November 30^th 2016.

collectd: A compile error on AIX has been fixed: MSG_DONTWAIT is not available on AIX. Thanks to Chao Yang.
collectd: The capability checking has been rewritten to be more portable. Thanks to Florian Forster. #2009
collectd.conf(5): Various typos have been fixed. Thanks to Marc Fournier.
collectd-tg: Incorrect usage of nanosleep() has been fixed which caused the tool to sleep (almost) indefinitely. Thanks to Florian Forster.
Build system: Detection of the Java environment has been made deterministic to allow for reproducible builds. Thanks to Marc Fournier. #1523
Build system: Detection of the Lua headers has been improved. Thanks to Ruben Kerkhof.
APC UPS plugin: Unavailable metrics are now skipped instead of reported as 0 (zero). Thanks to Florian Forster. #2025
Modbus plugin: Build issues on FreeBSD have been fixed. Thanks to Florian Forster.
OpenVPN plugin: Gracefully handle empty configurations. Thanks to Pavel Rochnyack. #1932
PowerDNS plugin: The "recursor command" has been fixed so PowerDNS can correctly parse all requested fields. Thanks to Ruben Kerkhof.
Write Graphite and AMQP plugins: A bug that could lead to a missing null-termination has been fixed. Thanks to Markus Linnala.
Write HTTP plugin: A logic error when checking the correctness of the data set has been fixed. Thanks to Pavel Rochnyack. #1996
Write Kafka plugin: The Key Random config option has been fixed. Thanks to Florian Forster. #1977
Write Kafka plugin: Support for librdkafka 0.9.0 has been added. Thanks to Florian Forster.
Write Riemann plugin: Build issues on Solaris have been fixed. Thanks to Florian Forster.
ZFS ARC plugin: A duplicate metric has been removed. Thanks to Ruben Kerkhof. #1963

Release 5.6.3

Released on Friday, October 6^th 2017.

collectd: support for boolean string config values has been reintroduced. Thanks to Sebastian Harl. #2083, #2098
collectd: The capability checking has been changed to use cap_get_proc(). Thanks to Marc Fournier. #2151
Documentation: A section documenting ignore lists has been added to collectd.conf(5). Thanks to Florian Forster.
AMQP plugin: The ExchangeType option is now also valid for publishers. Thanks to Florian Forster. #2286
Apache, Ascent, BIND, cURL, cURL-JSON, cURL-XML, nginx, Write HTTP plugins: Handling of URLs that redirect elsewhere has been fixed. Thanks to Pavel Rochnyack. #2328
BIND plugin: Fix parsing of the sample time provided by BIND. Previously, the time was assumed to be in the local time zone when in fact it was in UTC. Thanks to Ed Ravin. #1268
BIND plugin: Memory leaks have been fixed. Thanks to Ruben Kerkhof. #2303
Chrony plugin: Build flags have been fixed. Thanks to Thomas Jost and Marc Fournier. #2133
cURL-JSON plugin: The timeout value has been changed to default to the collection interval. This fixes a regression. Thanks to Marc Fournier.
cURL-JSON plugin: Handling of arrays has been fixed. Thanks to Florian Forster. #2266
DBI plugin: Memory leaks at shutdown have been fixes. Thanks to Pavel Rochnyack and Florian Forster.
E-Mail, Exec, UnixSock plugins: Group ID lookup on systems with many groups has been fixed. Thanks to Ruben Kerkhof and Florian Forster. #2208
IPC plugin: A compilation error on AIX has been fixed. Thanks to Pavel Rochnyack. #2305
LogFile plugin: If writing to the file fails, print log messages on STDERR instead. Thanks to Marc Fournier.
Log Logstash plugin: If writing the log entry fails, print it to STDERR instead. Thanks to Marc Fournier.
memcachec, Tail plugins: A resource leak in the matching infrastructure has been fixed. Thanks to Krzysztof Matczak. #2192
MQTT plugin: Invalid symbols in topic names are now replaced and a resource leak has been fixed. Thanks to Denys Fedoryshchenko. #2123
Network plugin: A potential endless-loop has been fixed. This can be triggered remotely by sending a signed network packet to a server which is not set up to check signatures. Thanks to Marcin Kozlowski and Pavel Rochnyack. #2174, #2233, CVE-2017-7401
Network plugin: A use-after-free has been fixed. Thanks to Pavel Rochnyack. #2375
Notify Email plugin: The plugin is no longer explicitly linked against libssl and libcrypto, relies on libesmtp being linked correctly. Thanks to Marc Fournier. Debian#852924
NTPd plugin: Calculation of loop offset and error has been fixed. Thanks to Neil Wilson. #2188
OpenLDAP plugin: An incorrect use of the ldap library, leading to a crash, has been fixed. Thanks to Marc Fournier. #2331
Perl plugin: A potential double-free has been fixed. Thanks to Florian Forster. #2278
Perl plugin: Print an error when an incorrect configuration is encountered. Thanks to Pavel Rochnyack. #927
RRDtool plugin: Incorrect handling of the flushes timeout option has been fixed. Handling of the RandomTimeout has been fixed. Thanks to Pavel Rochnyack. #2363
SMART plugin: Some warning messages have been removed and the code has been cleaned up. Thanks to Florian Forster. #2062
SMART plugin: A check for the CAP_SYS_RAWIO capability has been added. Thanks to Marc Fournier.
SNMP plugin: A double free has been fixed. Thanks to Pavel Rochnyack. #2291
Write Graphite plugin: Error handling in the case that calculating a metric's rate fails has been improved. Previously, the raw counter values were sent to Graphite. Thanks to Iain Buclaw. #2209
Write Kafka plugin: A 32 bit random number is now used when formatting a random key. Thanks to Florian Forster. #2074

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