When set to B<true>, reports the number of available CPUs.
Defaults to B<false>.
+=item B<ReportGuestState> B<false>|B<true>
+
+When set to B<true>, reports the "guest" and "guest_nice" CPU states.
+Defaults to B<false>.
+
+=item B<SubtractGuestState> B<false>|B<true>
+
+This option is only considered when B<ReportGuestState> is set to B<true>.
+"guest" and "guest_nice" are included in respectively "user" and "nice".
+If set to B<true>, "guest" will be subtracted from "user" and "guest_nice"
+will be subtracted from "nice".
+Defaults to B<true>.
+
=back
=head2 Plugin C<cpufreq>
Use I<Name> as the host name when submitting values. Defaults to the global
host name setting.
+=item B<Plugin> I<Plugin>
+
+Use I<Plugin> as the plugin name when submitting values.
+Defaults to 'curl_json'.
+
=item B<Instance> I<Instance>
Sets the plugin instance to I<Instance>.
<EAL>
Coremask "0x1"
MemoryChannels "4"
- ProcessType "secondary"
FilePrefix "rte"
</EAL>
<Event "link_status">
=head3 The EAL block
-=over 5
+=over 4
=item B<Coremask> I<Mask>
Number of memory channels per processor socket.
-=item B<ProcessType> I<type>
-
-The type of DPDK process instance.
-
=item B<FilePrefix> I<File>
The prefix text used for hugepage filenames. The filename will be set to
=head4 Link Status event
-=over 5
+=over 4
=item B<SendEventOnUpdate> I<true|false>
=head4 Keep Alive event
-=over 5
+=over 4
=item B<SendEventOnUpdate> I<true|false>
<EAL>
Coremask "0x4"
MemoryChannels "4"
- ProcessType "secondary"
FilePrefix "rte"
SocketMemory "1024"
</EAL>
=head3 The EAL block
-=over 5
+=over 4
=item B<Coremask> I<Mask>
A string containing a number of memory channels per processor socket.
-=item B<ProcessType> I<type>
-
-A string containing the type of DPDK process instance.
-
=item B<FilePrefix> I<File>
The prefix text used for hugepage filenames. The filename will be set to
=over 3
=item B<SharedMemObj> I<Mask>
+
A string containing the name of the shared memory object that should be used to
share stats from the DPDK secondary process to the collectd dpdkstat plugin.
Defaults to dpdk_collectd_stats if no other value is configured.
=over 4
+=item B<Plugin> I<Plugin>
+
+Use I<Plugin> as the plugin name when submitting values.
+Defaults to B<filecount>.
+
=item B<Instance> I<Instance>
-Sets the plugin instance to I<Instance>. That instance name must be unique, but
-it's your responsibility, the plugin doesn't check for that. If not given, the
-instance is set to the directory name with all slashes replaced by underscores
-and all leading underscores removed.
+Sets the plugin instance to I<Instance>. If not given, the instance is set to
+the directory name with all slashes replaced by underscores and all leading
+underscores removed. Empty value is allowed.
=item B<Name> I<Pattern>
"Hidden" files and directories are those, whose name begins with a dot.
Defaults to I<false>, i.e. by default hidden files and directories are ignored.
+=item B<FilesSizeType> I<Type>
+
+Sets the type used to dispatch files combined size. Empty value ("") disables
+reporting. Defaults to B<bytes>.
+
+=item B<FilesCountType> I<Type>
+
+Sets the type used to dispatch number of files. Empty value ("") disables
+reporting. Defaults to B<files>.
+
+=item B<TypeInstance> I<Instance>
+
+Sets the I<type instance> used to dispatch values. Defaults to an empty string
+(no plugin instance).
+
=back
=head2 Plugin C<GenericJMX>
=item B<IgnoreSelected> I<true>|I<false>
-If no configuration if given, the B<interface>-plugin will collect data from
+If no configuration is given, the B<interface>-plugin will collect data from
all interfaces. This may not be practical, especially for loopback- and
similar interfaces. Thus, you can use the B<Interface>-option to pick the
interfaces you're interested in. Sometimes, however, it's easier/preferred
mcelog server is running. When the server is running, the plugin will tail the
specified logfile to retrieve machine check exception information and send a
notification with the details from the logfile. The plugin will use the mcelog
-client protocol to retrieve memory related machine check exceptions.
+client protocol to retrieve memory related machine check exceptions. Note that
+for memory exceptions, notifications are only sent when there is a change in
+the number of corrected/uncorrected memory errors.
-=over 4
+=head3 The Memory block
+
+Note: these options cannot be used in conjunction with the logfile options, they are mutually
+exclusive.
+
+=over 3
=item B<McelogClientSocket> I<Path>
Connect to the mcelog client socket using the UNIX domain socket at I<Path>.
Defaults to B<"/var/run/mcelog-client">.
+=item B<PersistentNotification> B<true>|B<false>
+Override default configuration to only send notifications when sent when there
+is a change in the number of corrected/uncorrected memory errors. When set to
+true notifications will be sent for every read cycle. Default is false. Does
+not affect the stats being dispatched.
+
+=back
+
+=over 4
+
=item B<McelogLogfile> I<Path>
-The mcelog file to parse. Defaults to B<"/var/log/mcelog">.
+The mcelog file to parse. Defaults to B<"/var/log/mcelog">. Note: this option
+cannot be used in conjunction with the memory block options, they are mutually
+exclusive.
=back
Path to the PEM-encoded CA certificate file. Setting this option enables TLS
communication with the MQTT broker, and as such, B<Port> should be the TLS-enabled
port of the MQTT broker.
-A valid TLS configuration requires B<CACert>, B<CertificateFile> and B<CertificateKeyFile>.
+This option enables the use of TLS.
=item B<CertificateFile> I<file>
Path to the PEM-encoded certificate file to use as client certificate when
connecting to the MQTT broker.
-A valid TLS configuration requires B<CACert>, B<CertificateFile> and B<CertificateKeyFile>.
+Only valid if B<CACert> and B<CertificateKeyFile> are also set.
=item B<CertificateKeyFile> I<file>
Path to the unencrypted PEM-encoded key file corresponding to B<CertificateFile>.
-A valid TLS configuration requires B<CACert>, B<CertificateFile> and B<CertificateKeyFile>.
+Only valid if B<CACert> and B<CertificateFile> are also set.
=item B<TLSProtocol> I<protocol>
C<tlsv1.2>) to use for the TLS connection to the broker. If not set a default
version is used which depends on the version of OpenSSL the Mosquitto library
was linked against.
+Only valid if B<CACert> is set.
=item B<CipherSuite> I<ciphersuite>
A string describing the ciphers available for use. See L<ciphers(1)> and the
C<openssl ciphers> utility for more information. If unset, the default ciphers
will be used.
-
+Only valid if B<CACert> is set.
=back
or SQL threads are not running. Defaults to B<false>.
=item B<WsrepStats> I<true|false>
-
+
Enable the collection of wsrep plugin statistics, used in Master-Master
replication setups like in MySQL Galera/Percona XtraDB Cluster.
User needs only privileges to execute 'SHOW GLOBAL STATUS'
-
+
=item B<ConnectTimeout> I<Seconds>
Sets the connect timeout for the MySQL client.
=back
+=head2 Plugin C<nfs>
+
+The I<nfs plugin> collects information about the usage of the Network File
+System (NFS). It counts the number of procedure calls for each procedure,
+grouped by version and whether the system runs as server or client.
+
+It is possibly to omit metrics for a specific NFS version by setting one or
+more of the following options to B<false> (all of them default to B<true>).
+
+=over 4
+
+=item B<ReportV2> B<true>|B<false>
+
+=item B<ReportV3> B<true>|B<false>
+
+=item B<ReportV4> B<true>|B<false>
+
+=back
+
=head2 Plugin C<nginx>
This plugin collects the number of connections and requests handled by the
Example usage:
C<c_rehash /path/to/certs/folder>
+=item B<ConnectTimeout> I<Milliseconds>
+
+The B<ConnectTimeout> option sets the connect timeout, in milliseconds.
+By default, the configured B<Interval> is used to set the timeout.
+
=back
=head2 Plugin C<olsrd>
traffic statistics about connected clients.
To set up OpenVPN to write to the status file periodically, use the
-B<--status> option of OpenVPN. Since OpenVPN can write two different formats,
-you need to set the required format, too. This is done by setting
-B<--status-version> to B<2>.
+B<--status> option of OpenVPN.
So, in a nutshell you need:
openvpn $OTHER_OPTIONS \
- --status "/var/run/openvpn-status" 10 \
- --status-version 2
+ --status "/var/run/openvpn-status" 10
Available options:
=item B<Interval> I<Seconds>
Sets the interval in which to send ICMP echo packets to the configured hosts.
-This is B<not> the interval in which statistics are queries from the plugin but
-the interval in which the hosts are "pinged". Therefore, the setting here
-should be smaller than or equal to the global B<Interval> setting. Fractional
-times, such as "1.24" are allowed.
+This is B<not> the interval in which metrics are read from the plugin but the
+interval in which the hosts are "pinged". Therefore, the setting here should be
+smaller than or equal to the global B<Interval> setting. Fractional times, such
+as "1.24" are allowed.
Default: B<1.0>
When the C<rrdtool> plugin uses a cache (by setting B<CacheTimeout>, see below)
it writes all values for a certain RRD-file if the oldest value is older than
-(or equal to) the number of seconds specified. If some RRD-file is not updated
+(or equal to) the number of seconds specified by B<CacheTimeout>.
+That check happens on new values arriwal. If some RRD-file is not updated
anymore for some reason (the computer was shut down, the network is broken,
-etc.) some values may still be in the cache. If B<CacheFlush> is set, then the
-entire cache is searched for entries older than B<CacheTimeout> seconds and
-written to disk every I<Seconds> seconds. Since this is kind of expensive and
-does nothing under normal circumstances, this value should not be too small.
-900 seconds might be a good value, though setting this to 7200 seconds doesn't
-normally do much harm either.
+etc.) some values may still be in the cache. If B<CacheFlush> is set, then
+every I<Seconds> seconds the entire cache is searched for entries older than
+B<CacheTimeout> + B<RandomTimeout> seconds. The entries found are written to
+disk. Since scanning the entire cache is kind of expensive and does nothing
+under normal circumstances, this value should not be too small. 900 seconds
+might be a good value, though setting this to 7200 seconds doesn't normally
+do much harm either.
+
+Defaults to 10x B<CacheTimeout>.
+B<CacheFlush> must be larger than or equal to B<CacheTimeout>, otherwise the
+above default is used.
=item B<CacheTimeout> I<Seconds>
other plugins, its documentation has been moved to an own manpage,
L<collectd-snmp(5)>. Please see there for details.
+=head2 Plugin C<snmp_agent>
+
+The I<snmp_agent> plugin is an AgentX subagent that receives and handles queries
+from SNMP master agent and returns the data collected by read plugins.
+The I<snmp_agent> plugin handles requests only for OIDs specified in
+configuration file. To handle SNMP queries the plugin gets data from collectd
+and translates requested values from collectd's internal format to SNMP format.
+This plugin is a generic plugin and cannot work without configuration.
+For more details on AgentX subagent see
+<http://www.net-snmp.org/tutorial/tutorial-5/toolkit/demon/>
+
+B<Synopsis:>
+
+ <Plugin snmp_agent>
+ <Data "memAvailReal">
+ Plugin "memory"
+ #PluginInstance "some"
+ Type "memory"
+ TypeInstance "free"
+ OIDs "1.3.6.1.4.1.2021.4.6.0"
+ </Data>
+ <Table "ifTable">
+ IndexOID "IF-MIB::ifIndex"
+ SizeOID "IF-MIB::ifNumber"
+ <Data "ifDescr">
+ Instance true
+ Plugin "interface"
+ OIDs "IF-MIB::ifDescr"
+ </Data>
+ <Data "ifOctets">
+ Plugin "interface"
+ Type "if_octets"
+ TypeInstance ""
+ OIDs "IF-MIB::ifInOctets" "IF-MIB::ifOutOctets"
+ </Data>
+ </Table>
+ </Plugin>
+
+There are two types of blocks that can be contained in the
+C<E<lt>PluginE<nbsp> snmp_agentE<gt>> block: B<Data> and B<Table>:
+
+=head3 The B<Data> block
+
+The B<Data> block defines a list OIDs that are to be handled. This block can
+define scalar or table OIDs. If B<Data> block is defined inside of B<Table>
+block it reperesents table OIDs.
+The following options can be set:
+
+=over 4
+
+=item B<Instance> I<true|false>
+
+When B<Instance> is set to B<true>, the value for requested OID is copied from
+plugin instance field of corresponding collectd value. If B<Data> block defines
+scalar data type B<Instance> has no effect and can be omitted.
+
+=item B<Plugin> I<String>
+
+Read plugin name whose collected data will be mapped to specified OIDs.
+
+=item B<PluginInstance> I<String>
+
+Read plugin instance whose collected data will be mapped to specified OIDs.
+The field is optional and by default there is no plugin instance check.
+Allowed only if B<Data> block defines scalar data type.
+
+=item B<Type> I<String>
+
+Collectd's type that is to be used for specified OID, e.E<nbsp>g. "if_octets"
+for example. The types are read from the B<TypesDB> (see L<collectd.conf(5)>).
+
+=item B<TypeInstance> I<String>
+
+Collectd's type-instance that is to be used for specified OID.
+
+=item B<OIDs> I<OID> [I<OID> ...]
+
+Configures the OIDs to be handled by I<snmp_agent> plugin. Values for these OIDs
+are taken from collectd data type specified by B<Plugin>, B<PluginInstance>,
+B<Type>, B<TypeInstance> fields of this B<Data> block. Number of the OIDs
+configured should correspond to number of values in specified B<Type>.
+For example two OIDs "IF-MIB::ifInOctets" "IF-MIB::ifOutOctets" can be mapped to
+"rx" and "tx" values of "if_octets" type.
+
+=item B<Scale> I<Value>
+
+The values taken from collectd are multiplied by I<Value>. The field is optional
+and the default is B<1.0>.
+
+=item B<Shift> I<Value>
+
+I<Value> is added to values from collectd after they have been multiplied by
+B<Scale> value. The field is optional and the default value is B<0.0>.
+
+=back
+
+=head3 The B<Table> block
+
+The B<Table> block defines a collection of B<Data> blocks that belong to one
+snmp table. In addition to multiple B<Data> blocks the following options can be
+set:
+
+=over 4
+
+=item B<IndexOID> I<OID>
+
+OID that is handled by the plugin and is mapped to numerical index value that is
+generated by the plugin for each table record.
+
+=item B<SizeOID> I<OID>
+
+OID that is handled by the plugin. Returned value is the number of records in
+the table. The field is optional.
+
+=back
+
=head2 Plugin C<statsd>
The I<statsd plugin> listens to a UDP socket, reads "events" in the statsd
This is useful for deploying I<collectd> in a heterogeneous environment, where
swap sizes differ and you want to specify generic thresholds or similar.
+=item B<ReportIO> B<true>|B<false>
+
+Enables or disables reporting swap IO. Defaults to B<true>.
+
+This is useful for the cases when swap IO is not neccessary, is not available,
+or is not reliable.
+
=back
=head2 Plugin C<syslog>
<Plugin table>
<Table "/proc/slabinfo">
+ #Plugin "slab"
Instance "slabinfo"
Separator " "
<Result>
=over 4
+=item B<Plugin> I<Plugin>
+
+If specified, I<Plugin> is used as the plugin name when submitting values.
+Defaults to B<table>.
+
=item B<Instance> I<instance>
-If specified, I<instance> is used as the plugin instance. So, in the above
-example, the plugin name C<table-slabinfo> would be used. If omitted, the
+If specified, I<instance> is used as the plugin instance. If omitted, the
filename of the table is used instead, with all special characters replaced
with an underscore (C<_>).
<DSType "Distribution">
Percentile 99
Bucket 0 100
+ #BucketType "bucket"
</DSType>
Type "latency"
Instance "foo"
<DSType "Distribution">
Percentile 99
Bucket 0 100
+ BucketType "bucket"
</DSType>
=over 4
Bucket 20 50
Bucket 50 0
-Metrics are reported with the I<type> C<bucket> and the I<type instance>
+Metrics are reported with the I<type> set by B<BucketType> option (C<bucket>
+by default) and the I<type instance>
C<E<lt>TypeE<gt>[-E<lt>InstanceE<gt>]-E<lt>lower_boundE<gt>_E<lt>upper_boundE<gt>>.
This option may be repeated to calculate more than one rate.
+=item B<BucketType> I<Type>
+
+Sets the type used to dispatch B<Bucket> metrics.
+Optional, by default C<bucket> will be used.
+
=back
=back
Boolean enabling the use of logical core numbering for per core statistics.
When enabled, C<cpuE<lt>nE<gt>> is used as plugin instance, where I<n> is a
-sequential number assigned by the kernel. Otherwise, C<coreE<lt>nE<gt>> is used
-where I<n> is the n-th core of the socket, causing name conflicts when there is
-more than one socket.
+dynamic number assigned by the kernel. Otherwise, C<coreE<lt>nE<gt>> is used
+if there is only one package and C<pkgE<lt>nE<gt>-coreE<lt>mE<gt>> if there is
+more than one, where I<n> is the n-th core of package I<m>.
=back
CollectVCL false
CollectVSM false
CollectWorkers false
+ CollectLock false
+ CollectMempool false
+ CollectManagement false
+ CollectSMF false
+ CollectVBE false
</Instance>
</Plugin>
=item B<CollectSMA> B<true>|B<false>
malloc or umem (umem_alloc(3MALLOC) based) storage statistics. The umem storage
-component is Solaris specific. Only available with Varnish 2.x. False by
+component is Solaris specific.
+Note: SMA and SMF share counters, enable only the one used by the Varnish
+instance.
+Only available with Varnish 2.x. False by
default.
=item B<CollectSMS> B<true>|B<false>
=item B<CollectSM> B<true>|B<false>
-file (memory mapped file) storage statistics. Only available with Varnish 2.x.
+file (memory mapped file) storage statistics. Only available with Varnish 2.x.,
+in varnish 4.x. use CollectSMF.
False by default.
=item B<CollectStruct> B<true>|B<false>
Collect statistics about worker threads. False by default.
+=item B<CollectVBE> B<true>|B<false>
+
+Backend counters. Only available with Varnish 4.x. False by default.
+
+=item B<CollectSMF> B<true>|B<false>
+
+file (memory mapped file) storage statistics. Only available with Varnish 4.x.
+Note: SMA and SMF share counters, enable only the one used by the Varnish
+instance.
+Used to be called SM in Varnish 2.x. False by default.
+
+=item B<CollectManagement> B<true>|B<false>
+
+Management process counters. Only available with Varnish 4.x. False by default.
+
+=item B<CollectLock> B<true>|B<false>
+
+Lock counters. Only available with Varnish 4.x. False by default.
+
+=item B<CollectMempool> B<true>|B<false>
+
+Memory pool counters. Only available with Varnish 4.x. False by default.
+
=back
=head2 Plugin C<virt>
=item B<BlockDeviceFormat> B<target>|B<source>
If I<BlockDeviceFormat> is set to B<target>, the default, then the device name
-seen by the guest will be used for reporting metrics.
+seen by the guest will be used for reporting metrics.
This corresponds to the C<E<lt>targetE<gt>> node in the XML definition of the
domain.
Prefix "collectd/"
Database 1
MaxSetSize -1
+ MaxSetDuration -1
StoreRates true
</Node>
</Plugin>
The B<MaxSetSize> option limits the number of items that the I<Sorted Sets> can
hold. Negative values for I<Items> sets no limit, which is the default behavior.
+=item B<MaxSetDuration> I<Seconds>
+
+The B<MaxSetDuration> option limits the duration of items that the
+I<Sorted Sets> can hold. Negative values for I<Items> sets no duration, which
+is the default behavior.
+
=item B<StoreRates> B<true>|B<false>
If set to B<true> (the default), convert counter values to rates. If set to
projects / collectd.git / blobdiff