1 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
2 .. http://creativecommons.org/licenses/by/4.0
3 .. (c) <optionally add copywriters name>
5 ===================================
6 OPNFV Barometer User Guide
7 ===================================
13 Barometer collectd plugins description
14 ---------------------------------------
15 .. Describe the specific features and how it is realised in the scenario in a brief manner
16 .. to ensure the user understand the context for the user guide instructions to follow.
18 collectd is a daemon which collects system performance statistics periodically
19 and provides a variety of mechanisms to publish the collected metrics. It
20 supports more than 90 different input and output plugins. Input plugins
21 retrieve metrics and publish them to the collectd deamon, while output plugins
22 publish the data they receive to an end point. collectd also has infrastructure
23 to support thresholding and notification.
25 Barometer has enabled the following collectd plugins:
27 * *dpdkstat plugin*: A read plugin that retrieve stats from the DPDK extended
30 * *dpdkevents plugin*: A read plugin that retrieves DPDK link status and DPDK
31 forwarding cores liveliness status (DPDK Keep Alive).
33 * `ceilometer plugin`_: A write plugin that pushes the retrieved stats to
34 Ceilometer. It's capable of pushing any stats read through collectd to
35 Ceilometer, not just the DPDK stats.
37 * *hugepages plugin*: A read plugin that retrieves the number of available
38 and free hugepages on a platform as well as what is available in terms of
41 * *Open vSwitch events Plugin*: A read plugin that retrieves events from OVS.
43 * *Open vSwitch stats Plugin*: A read plugin that retrieves flow and interface
46 * *mcelog plugin*: A read plugin that uses mcelog client protocol to check for
47 memory Machine Check Exceptions and sends the stats for reported exceptions
49 * *RDT plugin*: A read plugin that provides the last level cache utilization and
50 memory bandwidth utilization
52 All the plugins above are available on the collectd master, except for the
53 ceilometer plugin as it's a python based plugin and only C plugins are accepted
54 by the collectd community. The ceilometer plugin lives in the OpenStack
57 Other plugins existing as a pull request into collectd master:
59 * *SNMP Agent*: A write plugin that will act as a AgentX subagent that receives
60 and handles queries from SNMP master agent and returns the data collected
61 by read plugins. The SNMP Agent plugin handles requests only for OIDs
62 specified in configuration file. To handle SNMP queries the plugin gets data
63 from collectd and translates requested values from collectd's internal format
64 to SNMP format. Supports SNMP: get, getnext and walk requests.
66 * *Legacy/IPMI*: A read plugin that reports platform thermals, voltages,
67 fanspeed, current, flow, power etc. Also, the plugin monitors Intelligent
68 Platform Management Interface (IPMI) System Event Log (SEL) and sends the
70 * *virt*: A read plugin that uses virtualization API *libvirt* to gather
71 statistics about virtualized guests on a system directly from the hypervisor,
72 without a need to install collectd instance on the guest.
74 **Plugins included in the Danube release:**
81 collectd capabilities and usage
82 ------------------------------------
83 .. Describe the specific capabilities and usage for <XYZ> feature.
84 .. Provide enough information that a user will be able to operate the feature on a deployed scenario.
86 .. note:: Plugins included in the OPNFV D release will be built-in to the fuel
87 plugin and available in the /opt/opnfv directory on the fuel master. You don't
88 need to clone the barometer/collectd repos to use these, but you can configure
89 them as shown in the examples below.
91 The collectd plugins in OPNFV are configured with reasonable defaults, but can
94 Building all Barometer upstreamed plugins from scratch
95 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
96 The plugins that have been merged to the collectd master branch can all be
97 built and configured through the barometer repository.
100 * sudo permissions are required to install collectd.
101 * These are instructions for Ubuntu 16.04
103 To build and install these dependencies, clone the barometer repo:
107 $ git clone https://gerrit.opnfv.org/gerrit/barometer
109 Install the build dependencies
113 $ ./src/install_build_deps.sh
115 To install collectd as a service and install all it's dependencies:
119 $ cd barometer/src && sudo make && sudo make install
121 This will install collectd as a service and the base install directory
122 will be /opt/collectd.
124 Sample configuration files can be found in '/opt/collectd/etc/collectd.conf.d'
127 - If you plan on using the Exec plugin, the plugin requires non-root
128 user to execute scripts. By default, `collectd_exec` user is used. Barometer
129 scripts do *not* create this user. It needs to be manually added or exec plugin
130 configuration has to be changed to use other, existing user before starting
133 - If you don't want to use one of the Barometer plugins, simply remove the
134 sample config file from '/opt/collectd/etc/collectd.conf.d'
136 - If you are using any Open vSwitch plugins you need to run:
140 $ sudo ovs-vsctl set-manager ptcp:6640
143 Below is the per plugin installation and configuration guide, if you only want
144 to install some/particular plugins.
146 DPDK statistics plugin
147 ^^^^^^^^^^^^^^^^^^^^^^
148 Repo: https://github.com/collectd/collectd
152 Dependencies: DPDK (http://dpdk.org/) Min_Version: 16.04
154 To build and install DPDK to /usr please see:
155 https://github.com/collectd/collectd/blob/master/docs/BUILD.dpdkstat.md
157 Building and installing collectd:
161 $ git clone https://github.com/collectd/collectd.git
164 $ ./configure --enable-syslog --enable-logfile --enable-debug
169 This will install collectd to /opt/collectd
170 The collectd configuration file can be found at /opt/collectd/etc
171 To configure the dpdkstats plugin you need to modify the configuration file to
181 ProcessType "secondary"
184 EnabledPortMask 0xffff
185 PortName "interface1"
186 PortName "interface2"
189 For more information on the plugin parameters, please see:
190 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
192 .. note:: If you are not building and installing DPDK system-wide
193 you will need to specify the specific paths to the header files and libraries
194 using LIBDPDK_CPPFLAGS and LIBDPDK_LDFLAGS. You will also need to add the DPDK
195 library symbols to the shared library path using ldconfig. Note that this
196 update to the shared library path is not persistent (i.e. it will not survive a
199 .. note:: Plugin initialization time depends on read interval. It requires
200 5 read cycles to set up internal buffers and states. During that time
201 no statistics are submitted. Also if plugin is running and the number of DPDK
202 ports is increased, internal buffers are resized. That requires 3 read cycles
203 and no port statistics are submitted in that time.
206 ^^^^^^^^^^^^^^^^^^^^^^
207 Repo: https://github.com/collectd/collectd
211 Dependencies: DPDK (http://dpdk.org/)
213 To build and install DPDK to /usr please see:
214 https://github.com/collectd/collectd/blob/master/docs/BUILD.dpdkstat.md
216 Building and installing collectd:
220 $ git clone https://github.com/collectd/collectd.git
223 $ ./configure --enable-syslog --enable-logfile --enable-debug
227 This will install collectd to /opt/collectd
228 The collectd configuration file can be found at /opt/collectd/etc
229 To configure the dpdkevents plugin you need to modify the configuration file to
234 LoadPlugin dpdkevents
235 <Plugin "dpdkevents">
240 ProcessType "secondary"
243 <Event "link_status">
244 SendEventsOnUpdate true
245 EnabledPortMask 0xffff
246 PortName "interface1"
247 PortName "interface2"
248 SendNotification false
251 SendEventsOnUpdate true
253 KeepAliveShmName "/dpdk_keepalive_shm_name"
254 SendNotification false
258 For more information on the plugin parameters, please see:
259 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
261 .. note:: If you are not building and installing DPDK system-wide
262 you will need to specify the specific paths to the header files and libraries
263 using LIBDPDK_CPPFLAGS and LIBDPDK_LDFLAGS. You will also need to add the DPDK
264 library symbols to the shared library path using ldconfig. Note that this
265 update to the shared library path is not persistent (i.e. it will not survive a
270 $ ./configure LIBDPDK_CPPFLAGS="path to DPDK header files" LIBDPDK_LDFLAGS="path to DPDK libraries"
274 Repo: https://github.com/collectd/collectd
278 Dependencies: None, but assumes hugepages are configured.
280 To configure some hugepages:
284 sudo mkdir -p /mnt/huge
285 sudo mount -t hugetlbfs nodev /mnt/huge
286 sudo echo 14336 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
288 Building and installing collectd:
292 $ git clone https://github.com/collectd/collectd.git
295 $ ./configure --enable-syslog --enable-logfile --enable-hugepages --enable-debug
299 This will install collectd to /opt/collectd
300 The collectd configuration file can be found at /opt/collectd/etc
301 To configure the hugepages plugin you need to modify the configuration file to
312 ValuesPercentage false
315 For more information on the plugin parameters, please see:
316 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
320 Repo: https://github.com/collectd/collectd
326 * PQoS/Intel RDT library https://github.com/01org/intel-cmt-cat.git
329 Building and installing PQoS/Intel RDT library:
333 $ git clone https://github.com/01org/intel-cmt-cat.git
336 $ make install PREFIX=/usr
338 You will need to insert the msr kernel module:
344 Building and installing collectd:
348 $ git clone https://github.com/collectd/collectd.git
351 $ ./configure --enable-syslog --enable-logfile --with-libpqos=/usr/ --enable-debug
355 This will install collectd to /opt/collectd
356 The collectd configuration file can be found at /opt/collectd/etc
357 To configure the RDT plugin you need to modify the configuration file to
362 <LoadPlugin intel_rdt>
369 For more information on the plugin parameters, please see:
370 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
374 Repo: https://github.com/maryamtahhan/collectd
376 Branch: feat_ipmi_events, feat_ipmi_analog
378 Dependencies: OpenIPMI library (http://openipmi.sourceforge.net/)
380 The IPMI plugin is already implemented in the latest collectd and sensors
381 like temperature, voltage, fanspeed, current are already supported there.
382 The list of supported IPMI sensors has been extended and sensors like flow,
383 power are supported now. Also, a System Event Log (SEL) notification feature
386 * The feat_ipmi_events branch includes new SEL feature support in collectd
387 IPMI plugin. If this feature is enabled, the collectd IPMI plugin will
388 dispatch notifications about new events in System Event Log.
390 * The feat_ipmi_analog branch includes the support of extended IPMI sensors in
391 collectd IPMI plugin.
393 **Install dependencies**
395 On Ubuntu, the OpenIPMI library can be installed via apt package manager:
399 $ sudo apt-get install libopenipmi-dev
401 Anyway, it's recommended to use the latest version of the OpenIPMI library as
402 it includes fixes of known issues which aren't included in standard OpenIPMI
403 library package. The latest version of the library can be found at
404 https://sourceforge.net/p/openipmi/code/ci/master/tree/. Steps to install the
405 library from sources are described below.
407 Remove old version of OpenIPMI library:
411 $ sudo apt-get remove libopenipmi-dev
413 Download OpenIPMI library sources:
417 $ git clone https://git.code.sf.net/p/openipmi/code openipmi-code
420 Patch the OpenIPMI pkg-config file to provide correct compilation flags
421 for collectd IPMI plugin:
425 diff --git a/OpenIPMIpthread.pc.in b/OpenIPMIpthread.pc.in
426 index 59b52e5..fffa0d0 100644
427 --- a/OpenIPMIpthread.pc.in
428 +++ b/OpenIPMIpthread.pc.in
429 @@ -6,6 +6,6 @@ includedir=@includedir@
430 Name: OpenIPMIpthread
431 Description: Pthread OS handler for OpenIPMI
433 -Requires: OpenIPMI pthread
435 Libs: -L${libdir} -lOpenIPMIutils -lOpenIPMIpthread
436 -Cflags: -I${includedir}
437 +Cflags: -I${includedir} -pthread
439 Build and install OpenIPMI library:
443 $ autoreconf --install
444 $ ./configure --prefix=/usr
448 Enable IPMI support in the kernel:
452 $ sudo modprobe ipmi_devintf
453 $ sudo modprobe ipmi_si
455 **Note**: If HW supports IPMI, the ``/dev/ipmi0`` character device will be
458 Clone and install the collectd IPMI plugin:
462 $ git clone https://github.com/maryamtahhan/collectd
464 $ git checkout $BRANCH
466 $ ./configure --enable-syslog --enable-logfile --enable-debug
470 Where $BRANCH is feat_ipmi_events or feat_ipmi_analog.
472 This will install collectd to default folder ``/opt/collectd``. The collectd
473 configuration file (``collectd.conf``) can be found at ``/opt/collectd/etc``. To
474 configure the IPMI plugin you need to modify the file to include:
480 SELEnabled true # only feat_ipmi_events branch supports this
483 **Note**: By default, IPMI plugin will read all available analog sensor values,
484 dispatch the values to collectd and send SEL notifications.
486 For more information on the IPMI plugin parameters and SEL feature configuration,
488 https://github.com/maryamtahhan/collectd/blob/feat_ipmi_events/src/collectd.conf.pod
490 Extended analog sensors support doesn't require additional configuration. The usual
491 collectd IPMI documentation can be used:
493 - https://collectd.org/wiki/index.php/Plugin:IPMI
494 - https://collectd.org/documentation/manpages/collectd.conf.5.shtml#plugin_ipmi
498 - https://www.kernel.org/doc/Documentation/IPMI.txt
499 - http://www.intel.com/content/www/us/en/servers/ipmi/ipmi-second-gen-interface-spec-v2-rev1-1.html
503 Repo: https://github.com/collectd/collectd
509 Start by installing mcelog. Note: The kernel has to have CONFIG_X86_MCE
510 enabled. For 32bit kernels you need at least a 2.6,30 kernel.
516 $ apt-get update && apt-get install mcelog
522 $ git clone git://git.kernel.org/pub/scm/utils/cpu/mce/mcelog.git
527 $ cp mcelog.service /etc/systemd/system/
528 $ systemctl enable mcelog.service
529 $ systemctl start mcelog.service
532 Verify you got a /dev/mcelog. You can verify the daemon is running completely
539 This should query the information in the running daemon. If it prints nothing
540 that is fine (no errors logged yet). More info @
541 http://www.mcelog.org/installation.html
543 Modify the mcelog configuration file "/etc/mcelog/mcelog.conf" to include or
548 socket-path = /var/run/mcelog-client
550 Clone and install the collectd mcelog plugin:
554 $ git clone https://github.com/maryamtahhan/collectd
556 $ git checkout feat_ras
558 $ ./configure --enable-syslog --enable-logfile --enable-debug
562 This will install collectd to /opt/collectd
563 The collectd configuration file can be found at /opt/collectd/etc
564 To configure the mcelog plugin you need to modify the configuration file to
573 McelogClientSocket "/var/run/mcelog-client"
576 For more information on the plugin parameters, please see:
577 https://github.com/maryamtahhan/collectd/blob/feat_ras/src/collectd.conf.pod
579 Simulating a Machine Check Exception can be done in one of 3 ways:
581 * Running $make test in the mcelog cloned directory - mcelog test suite
585 **mcelog test suite:**
587 It is always a good idea to test an error handling mechanism before it is
588 really needed. mcelog includes a test suite. The test suite relies on
589 mce-inject which needs to be installed and in $PATH.
591 You also need the mce-inject kernel module configured (with
592 CONFIG_X86_MCE_INJECT=y), compiled, installed and loaded:
596 $ modprobe mce-inject
598 Then you can run the mcelog test suite with
604 This will inject different classes of errors and check that the mcelog triggers
605 runs. There will be some kernel messages about page offlining attempts. The
606 test will also lose a few pages of memory in your system (not significant)
607 **Note this test will kill any running mcelog, which needs to be restarted
608 manually afterwards**.
611 A utility to inject corrected, uncorrected and fatal machine check exceptions
615 $ git clone https://git.kernel.org/pub/scm/utils/cpu/mce/mce-inject.git
618 $ modprobe mce-inject
620 Modify the test/corrected script to include the following:
625 STATUS 0xcc00008000010090
631 $ ./mce-inject < test/corrected
633 **Note: the uncorrected and fatal scripts under test will cause a platform reset.
634 Only the fatal script generates the memory errors**. In order to quickly
635 emulate uncorrected memory errors and avoid host reboot following test errors
636 from mce-test suite can be injected:
640 $ mce-inject mce-test/cases/coverage/soft-inj/recoverable_ucr/data/srao_mem_scrub
644 In addition an more in-depth test of the Linux kernel machine check facilities
645 can be done with the mce-test test suite. mce-test supports testing uncorrected
646 error handling, real error injection, handling of different soft offlining
647 cases, and other tests.
649 **Corrected memory error injection:**
651 To inject corrected memory errors:
653 * Remove sb_edac and edac_core kernel modules: rmmod sb_edac rmmod edac_core
654 * Insert einj module: modprobe einj param_extension=1
655 * Inject an error by specifying details (last command should be repeated at least two times):
659 $ APEI_IF=/sys/kernel/debug/apei/einj
660 $ echo 0x8 > $APEI_IF/error_type
661 $ echo 0x01f5591000 > $APEI_IF/param1
662 $ echo 0xfffffffffffff000 > $APEI_IF/param2
663 $ echo 1 > $APEI_IF/notrigger
664 $ echo 1 > $APEI_IF/error_inject
666 * Check the MCE statistic: mcelog --client. Check the mcelog log for injected error details: less /var/log/mcelog.
669 ^^^^^^^^^^^^^^^^^^^^^
670 OvS Plugins Repo: https://github.com/collectd/collectd
672 OvS Plugins Branch: master
674 OvS Events MIBs: The SNMP OVS interface link status is provided by standard
675 IF-MIB (http://www.net-snmp.org/docs/mibs/IF-MIB.txt)
677 Dependencies: Open vSwitch, Yet Another JSON Library (https://github.com/lloyd/yajl)
679 On Ubuntu, install the dependencies:
683 $ sudo apt-get install libyajl-dev openvswitch-switch
685 Start the Open vSwitch service:
689 $ sudo service openvswitch-switch start
691 configure the ovsdb-server manager:
695 $ sudo ovs-vsctl set-manager ptcp:6640
697 Clone and install the collectd ovs plugin:
703 $ git checkout master
705 $ ./configure --enable-syslog --enable-logfile --enable-debug
709 This will install collectd to /opt/collectd. The collectd configuration file
710 can be found at /opt/collectd/etc. To configure the OVS events plugin you
711 need to modify the configuration file to include:
715 <LoadPlugin ovs_events>
718 <Plugin "ovs_events">
720 Socket "/var/run/openvswitch/db.sock"
721 Interfaces "br0" "veth0"
722 SendNotification false
726 To configure the OVS stats plugin you need to modify the configuration file
731 <LoadPlugin ovs_stats>
737 Socket "/var/run/openvswitch/db.sock"
738 Bridges "br0" "br_ext"
741 For more information on the plugin parameters, please see:
742 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
746 Repo: https://github.com/maryamtahhan/collectd/
750 Dependencies: NET-SNMP library
752 Start by installing net-snmp and dependencies.
758 $ apt-get install snmp snmp-mibs-downloader snmpd libsnmp-dev
759 $ systemctl start snmpd.service
763 Become root to install net-snmp dependencies
767 $ apt-get install libperl-dev
769 Clone and build net-snmp
773 $ git clone https://github.com/haad/net-snmp.git
775 $ ./configure --with-persistent-directory="/var/net-snmp" --with-systemd --enable-shared --prefix=/usr
784 Copy default configuration to persistent folder
788 $ cp EXAMPLE.conf /usr/share/snmp/snmpd.conf
790 Set library path and default MIB configuration
795 $ echo export LD_LIBRARY_PATH=/usr/lib >> .bashrc
796 $ net-snmp-config --default-mibdirs
797 $ net-snmp-config --snmpconfpath
799 Configure snmpd as a service
804 $ cp ./dist/snmpd.service /etc/systemd/system/
805 $ systemctl enable snmpd.service
806 $ systemctl start snmpd.service
808 Add the following line to snmpd.conf configuration file
809 "/usr/share/snmp/snmpd.conf" to make all OID tree visible for SNMP clients:
813 view systemonly included .1
815 To verify that SNMP is working you can get IF-MIB table using SNMP client
816 to view the list of Linux interfaces:
820 $ snmpwalk -v 2c -c public localhost IF-MIB::interfaces
822 Clone and install the collectd snmp_agent plugin:
826 $ git clone https://github.com/maryamtahhan/collectd
828 $ git checkout feat_snmp
830 $ ./configure --enable-syslog --enable-logfile --enable-debug --enable-snmp --with-libnetsnmp
834 This will install collectd to /opt/collectd
835 The collectd configuration file can be found at /opt/collectd/etc
836 **SNMP Agent plugin is a generic plugin and cannot work without configuration**.
837 To configure the snmp_agent plugin you need to modify the configuration file to
838 include OIDs mapped to collectd types. The following example maps scalar
839 memAvailReal OID to value represented as free memory type of memory plugin:
843 LoadPlugin snmp_agent
844 <Plugin "snmp_agent">
845 <Data "memAvailReal">
849 OIDs "1.3.6.1.4.1.2021.4.6.0"
853 For more information on the plugin parameters, please see:
854 https://github.com/maryamtahhan/collectd/blob/feat_snmp/src/collectd.conf.pod
856 For more details on AgentX subagent, please see:
857 http://www.net-snmp.org/tutorial/tutorial-5/toolkit/demon/
861 Repo: https://github.com/maryamtahhan/collectd
863 Branch: feat_libvirt_upstream
865 Dependencies: libvirt (https://libvirt.org/), libxml2
867 On Ubuntu, install the dependencies:
871 $ sudo apt-get install libxml2-dev
875 libvirt version in package manager might be quite old and offer only limited
876 functionality. Hence, building and installing libvirt from sources is recommended.
877 Detailed instructions can bet found at:
878 https://libvirt.org/compiling.html
880 Certain metrics provided by the plugin have a requirement on a minimal version of
881 the libvirt API. *File system information* statistics require a *Guest Agent (GA)*
882 to be installed and configured in a VM. User must make sure that installed GA
883 version supports retrieving file system information. Number of *Performance monitoring events*
884 metrics depends on running libvirt daemon version.
886 .. note:: Please keep in mind that RDT metrics (part of *Performance monitoring
887 events*) have to be supported by hardware. For more details on hardware support,
889 https://github.com/01org/intel-cmt-cat
891 Additionally perf metrics **cannot** be collected if *Intel RDT* plugin is enabled.
893 libvirt version can be checked with following commands:
900 .. table:: Extended statistics requirements
902 +-------------------------------+--------------------------+-------------+
903 | Statistic | Min. libvirt API version | Requires GA |
904 +===============================+==========================+=============+
905 | Domain reason | 0.9.2 | No |
906 +-------------------------------+--------------------------+-------------+
907 | Disk errors | 0.9.10 | No |
908 +-------------------------------+--------------------------+-------------+
909 | Job statistics | 1.2.9 | No |
910 +-------------------------------+--------------------------+-------------+
911 | File system information | 1.2.11 | Yes |
912 +-------------------------------+--------------------------+-------------+
913 | Performance monitoring events | 1.3.3 | No |
914 +-------------------------------+--------------------------+-------------+
916 Start libvirt daemon:
920 $ systemctl start libvirtd
922 Create domain (VM) XML configuration file. For more information on domain XML
923 format and examples, please see:
924 https://libvirt.org/formatdomain.html
926 .. note:: Installing additional hypervisor dependencies might be required before
927 deploying virtual machine.
929 Create domain, based on created XML file:
933 $ virsh define DOMAIN_CFG_FILE.xml
939 $ virsh start DOMAIN_NAME
941 Check if domain is running:
947 Check list of available *Performance monitoring events* and their settings:
951 $ virsh perf DOMAIN_NAME
953 Enable or disable *Performance monitoring events* for domain:
957 $ virsh perf DOMAIN_NAME [--enable | --disable] EVENT_NAME --live
959 Clone and install the collectd virt plugin:
965 $ git checkout $BRANCH
967 $ ./configure --enable-syslog --enable-logfile --enable-debug
971 Where ``$REPO`` and ``$BRANCH`` are equal to information provided above.
973 This will install collectd to ``/opt/collectd``. The collectd configuration file
974 ``collectd.conf`` can be found at ``/opt/collectd/etc``. To load the virt plugin
975 user needs to modify the configuration file to include:
981 Additionally, user can specify plugin configuration parameters in this file,
982 such as connection URI, domain name and much more. By default extended virt plugin
983 statistics are disabled. They can be enabled with ``ExtraStats`` option.
989 ExtraStats "cpu_util disk disk_err domain_state fs_info job_stats_background pcpu perf vcpupin"
992 For more information on the plugin parameters, please see:
993 https://github.com/maryamtahhan/collectd/blob/feat_libvirt_upstream/src/collectd.conf.pod
995 Installing collectd as a service
996 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
997 **NOTE**: In an OPNFV installation, collectd is installed and configured as a
1000 Collectd service scripts are available in the collectd/contrib directory.
1001 To install collectd as a service:
1005 $ sudo cp contrib/systemd.collectd.service /etc/systemd/system/
1006 $ cd /etc/systemd/system/
1007 $ sudo mv systemd.collectd.service collectd.service
1008 $ sudo chmod +x collectd.service
1010 Modify collectd.service
1015 ExecStart=/opt/collectd/sbin/collectd
1016 EnvironmentFile=-/opt/collectd/etc/
1017 EnvironmentFile=-/opt/collectd/etc/
1018 CapabilityBoundingSet=CAP_SETUID CAP_SETGID
1024 $ sudo systemctl daemon-reload
1025 $ sudo systemctl start collectd.service
1026 $ sudo systemctl status collectd.service should show success
1028 Additional useful plugins
1029 ^^^^^^^^^^^^^^^^^^^^^^^^^^
1031 * **Exec Plugin** : Can be used to show you when notifications are being
1032 generated by calling a bash script that dumps notifications to file. (handy
1033 for debug). Modify /opt/collectd/etc/collectd.conf:
1039 # Exec "user:group" "/path/to/exec"
1040 NotificationExec "user" "<path to barometer>/barometer/src/collectd/collectd_sample_configs/write_notification.sh"
1043 write_notification.sh (just writes the notification passed from exec through
1044 STDIN to a file (/tmp/notifications)):
1049 rm -f /tmp/notifications
1052 echo $x$y >> /tmp/notifications
1055 output to /tmp/notifications should look like:
1063 PluginInstance:br-ex
1065 TypeInstance:link_status
1066 uuid:f2aafeec-fa98-4e76-aec5-18ae9fc74589
1068 linkstate of "br-ex" interface has been changed to "DOWN"
1070 * **logfile plugin**: Can be used to log collectd activity. Modify
1071 /opt/collectd/etc/collectd.conf to include:
1078 File "/var/log/collectd.log"
1084 Monitoring Interfaces and Openstack Support
1085 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1086 .. Figure:: monitoring_interfaces.png
1088 Monitoring Interfaces and Openstack Support
1090 The figure above shows the DPDK L2 forwarding application running on a compute
1091 node, sending and receiving traffic. collectd is also running on this compute
1092 node retrieving the stats periodically from DPDK through the dpdkstat plugin
1093 and publishing the retrieved stats to Ceilometer through the ceilometer plugin.
1095 To see this demo in action please checkout: `Barometer OPNFV Summit demo`_
1099 .. [1] https://collectd.org/wiki/index.php/Naming_schema
1100 .. [2] https://github.com/collectd/collectd/blob/master/src/daemon/plugin.h
1101 .. [3] https://collectd.org/wiki/index.php/Value_list_t
1102 .. [4] https://collectd.org/wiki/index.php/Data_set
1103 .. [5] https://collectd.org/documentation/manpages/types.db.5.shtml
1104 .. [6] https://collectd.org/wiki/index.php/Data_source
1105 .. [7] https://collectd.org/wiki/index.php/Meta_Data_Interface
1107 .. _Barometer OPNFV Summit demo: https://prezi.com/kjv6o8ixs6se/software-fastpath-service-quality-metrics-demo/
1108 .. _ceilometer plugin: https://github.com/openstack/collectd-ceilometer-plugin/tree/stable/mitaka