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.
148 Repo: https://github.com/collectd/collectd
152 Dependencies: DPDK (http://dpdk.org/)
154 .. note:: DPDK statistics plugin requires DPDK version 16.04 or later
156 To build and install DPDK to /usr please see:
157 https://github.com/collectd/collectd/blob/master/docs/BUILD.dpdkstat.md
159 Building and installing collectd:
163 $ git clone https://github.com/collectd/collectd.git
166 $ ./configure --enable-syslog --enable-logfile --enable-debug
170 .. note:: If DPDK was installed in a non standard location you will need to
171 specify paths to the header files and libraries using *LIBDPDK_CPPFLAGS* and
172 *LIBDPDK_LDFLAGS*. You will also need to add the DPDK library symbols to the
173 shared library path using *ldconfig*. Note that this update to the shared
174 library path is not persistant (i.e. it will not survive a reboot).
176 Example of specifying custom paths to DPDK headers and libraries:
180 $ ./configure LIBDPDK_CPPFLAGS="path to DPDK header files" LIBDPDK_LDFLAGS="path to DPDK libraries"
182 This will install collectd to /opt/collectd
183 The collectd configuration file can be found at /opt/collectd/etc
185 To configure the dpdkstats plugin you need to modify the configuration file to
195 ProcessType "secondary"
198 EnabledPortMask 0xffff
199 PortName "interface1"
200 PortName "interface2"
204 To configure the dpdkevents plugin you need to modify the configuration file to
209 LoadPlugin dpdkevents
210 <Plugin "dpdkevents">
215 ProcessType "secondary"
218 <Event "link_status">
219 SendEventsOnUpdate true
220 EnabledPortMask 0xffff
221 PortName "interface1"
222 PortName "interface2"
223 SendNotification false
226 SendEventsOnUpdate true
228 KeepAliveShmName "/dpdk_keepalive_shm_name"
229 SendNotification false
233 For more information on the plugin parameters, please see:
234 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
236 .. note:: dpdkstat plugin initialization time depends on read interval. It
237 requires 5 read cycles to set up internal buffers and states. During that time
238 no statistics are submitted. Also if plugin is running and the number of DPDK
239 ports is increased, internal buffers are resized. That requires 3 read cycles
240 and no port statistics are submitted in that time.
242 The Address-Space Layout Randomization (ASLR) security feature in Linux should be
243 disabled, in order for the same hugepage memory mappings to be present in all
244 DPDK multi-process applications.
250 $ sudo echo 0 > /proc/sys/kernel/randomize_va_space
252 To fully enable ASLR:
256 $ sudo echo 2 > /proc/sys/kernel/randomize_va_space
258 .. warning:: Disabling Address-Space Layout Randomization (ASLR) may have security
259 implications. It is recommended to be disabled only when absolutely necessary,
260 and only when all implications of this change have been understood.
262 For more information on multi-process support, please see:
263 http://dpdk.org/doc/guides/prog_guide/multi_proc_support.html
267 Repo: https://github.com/collectd/collectd
271 Dependencies: None, but assumes hugepages are configured.
273 To configure some hugepages:
277 sudo mkdir -p /mnt/huge
278 sudo mount -t hugetlbfs nodev /mnt/huge
279 sudo echo 14336 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
281 Building and installing collectd:
285 $ git clone https://github.com/collectd/collectd.git
288 $ ./configure --enable-syslog --enable-logfile --enable-hugepages --enable-debug
292 This will install collectd to /opt/collectd
293 The collectd configuration file can be found at /opt/collectd/etc
294 To configure the hugepages plugin you need to modify the configuration file to
305 ValuesPercentage false
308 For more information on the plugin parameters, please see:
309 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
313 Repo: https://github.com/collectd/collectd
319 * PQoS/Intel RDT library https://github.com/01org/intel-cmt-cat.git
322 Building and installing PQoS/Intel RDT library:
326 $ git clone https://github.com/01org/intel-cmt-cat.git
329 $ make install PREFIX=/usr
331 You will need to insert the msr kernel module:
337 Building and installing collectd:
341 $ git clone https://github.com/collectd/collectd.git
344 $ ./configure --enable-syslog --enable-logfile --with-libpqos=/usr/ --enable-debug
348 This will install collectd to /opt/collectd
349 The collectd configuration file can be found at /opt/collectd/etc
350 To configure the RDT plugin you need to modify the configuration file to
355 <LoadPlugin intel_rdt>
362 For more information on the plugin parameters, please see:
363 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
367 Repo: https://github.com/maryamtahhan/collectd
369 Branch: feat_ipmi_events, feat_ipmi_analog
371 Dependencies: OpenIPMI library (http://openipmi.sourceforge.net/)
373 The IPMI plugin is already implemented in the latest collectd and sensors
374 like temperature, voltage, fanspeed, current are already supported there.
375 The list of supported IPMI sensors has been extended and sensors like flow,
376 power are supported now. Also, a System Event Log (SEL) notification feature
379 * The feat_ipmi_events branch includes new SEL feature support in collectd
380 IPMI plugin. If this feature is enabled, the collectd IPMI plugin will
381 dispatch notifications about new events in System Event Log.
383 * The feat_ipmi_analog branch includes the support of extended IPMI sensors in
384 collectd IPMI plugin.
386 **Install dependencies**
388 On Ubuntu, the OpenIPMI library can be installed via apt package manager:
392 $ sudo apt-get install libopenipmi-dev
394 Anyway, it's recommended to use the latest version of the OpenIPMI library as
395 it includes fixes of known issues which aren't included in standard OpenIPMI
396 library package. The latest version of the library can be found at
397 https://sourceforge.net/p/openipmi/code/ci/master/tree/. Steps to install the
398 library from sources are described below.
400 Remove old version of OpenIPMI library:
404 $ sudo apt-get remove libopenipmi-dev
406 Download OpenIPMI library sources:
410 $ git clone https://git.code.sf.net/p/openipmi/code openipmi-code
413 Patch the OpenIPMI pkg-config file to provide correct compilation flags
414 for collectd IPMI plugin:
418 diff --git a/OpenIPMIpthread.pc.in b/OpenIPMIpthread.pc.in
419 index 59b52e5..fffa0d0 100644
420 --- a/OpenIPMIpthread.pc.in
421 +++ b/OpenIPMIpthread.pc.in
422 @@ -6,6 +6,6 @@ includedir=@includedir@
423 Name: OpenIPMIpthread
424 Description: Pthread OS handler for OpenIPMI
426 -Requires: OpenIPMI pthread
428 Libs: -L${libdir} -lOpenIPMIutils -lOpenIPMIpthread
429 -Cflags: -I${includedir}
430 +Cflags: -I${includedir} -pthread
432 Build and install OpenIPMI library:
436 $ autoreconf --install
437 $ ./configure --prefix=/usr
441 Enable IPMI support in the kernel:
445 $ sudo modprobe ipmi_devintf
446 $ sudo modprobe ipmi_si
448 **Note**: If HW supports IPMI, the ``/dev/ipmi0`` character device will be
451 Clone and install the collectd IPMI plugin:
455 $ git clone https://github.com/maryamtahhan/collectd
457 $ git checkout $BRANCH
459 $ ./configure --enable-syslog --enable-logfile --enable-debug
463 Where $BRANCH is feat_ipmi_events or feat_ipmi_analog.
465 This will install collectd to default folder ``/opt/collectd``. The collectd
466 configuration file (``collectd.conf``) can be found at ``/opt/collectd/etc``. To
467 configure the IPMI plugin you need to modify the file to include:
473 SELEnabled true # only feat_ipmi_events branch supports this
476 **Note**: By default, IPMI plugin will read all available analog sensor values,
477 dispatch the values to collectd and send SEL notifications.
479 For more information on the IPMI plugin parameters and SEL feature configuration,
481 https://github.com/maryamtahhan/collectd/blob/feat_ipmi_events/src/collectd.conf.pod
483 Extended analog sensors support doesn't require additional configuration. The usual
484 collectd IPMI documentation can be used:
486 - https://collectd.org/wiki/index.php/Plugin:IPMI
487 - https://collectd.org/documentation/manpages/collectd.conf.5.shtml#plugin_ipmi
491 - https://www.kernel.org/doc/Documentation/IPMI.txt
492 - http://www.intel.com/content/www/us/en/servers/ipmi/ipmi-second-gen-interface-spec-v2-rev1-1.html
496 Repo: https://github.com/collectd/collectd
502 Start by installing mcelog. Note: The kernel has to have CONFIG_X86_MCE
503 enabled. For 32bit kernels you need at least a 2.6,30 kernel.
509 $ apt-get update && apt-get install mcelog
515 $ git clone git://git.kernel.org/pub/scm/utils/cpu/mce/mcelog.git
520 $ cp mcelog.service /etc/systemd/system/
521 $ systemctl enable mcelog.service
522 $ systemctl start mcelog.service
525 Verify you got a /dev/mcelog. You can verify the daemon is running completely
532 This should query the information in the running daemon. If it prints nothing
533 that is fine (no errors logged yet). More info @
534 http://www.mcelog.org/installation.html
536 Modify the mcelog configuration file "/etc/mcelog/mcelog.conf" to include or
541 socket-path = /var/run/mcelog-client
543 Clone and install the collectd mcelog plugin:
547 $ git clone https://github.com/maryamtahhan/collectd
549 $ git checkout feat_ras
551 $ ./configure --enable-syslog --enable-logfile --enable-debug
555 This will install collectd to /opt/collectd
556 The collectd configuration file can be found at /opt/collectd/etc
557 To configure the mcelog plugin you need to modify the configuration file to
566 McelogClientSocket "/var/run/mcelog-client"
569 For more information on the plugin parameters, please see:
570 https://github.com/maryamtahhan/collectd/blob/feat_ras/src/collectd.conf.pod
572 Simulating a Machine Check Exception can be done in one of 3 ways:
574 * Running $make test in the mcelog cloned directory - mcelog test suite
578 **mcelog test suite:**
580 It is always a good idea to test an error handling mechanism before it is
581 really needed. mcelog includes a test suite. The test suite relies on
582 mce-inject which needs to be installed and in $PATH.
584 You also need the mce-inject kernel module configured (with
585 CONFIG_X86_MCE_INJECT=y), compiled, installed and loaded:
589 $ modprobe mce-inject
591 Then you can run the mcelog test suite with
597 This will inject different classes of errors and check that the mcelog triggers
598 runs. There will be some kernel messages about page offlining attempts. The
599 test will also lose a few pages of memory in your system (not significant)
600 **Note this test will kill any running mcelog, which needs to be restarted
601 manually afterwards**.
604 A utility to inject corrected, uncorrected and fatal machine check exceptions
608 $ git clone https://git.kernel.org/pub/scm/utils/cpu/mce/mce-inject.git
611 $ modprobe mce-inject
613 Modify the test/corrected script to include the following:
618 STATUS 0xcc00008000010090
624 $ ./mce-inject < test/corrected
626 **Note: the uncorrected and fatal scripts under test will cause a platform reset.
627 Only the fatal script generates the memory errors**. In order to quickly
628 emulate uncorrected memory errors and avoid host reboot following test errors
629 from mce-test suite can be injected:
633 $ mce-inject mce-test/cases/coverage/soft-inj/recoverable_ucr/data/srao_mem_scrub
637 In addition an more in-depth test of the Linux kernel machine check facilities
638 can be done with the mce-test test suite. mce-test supports testing uncorrected
639 error handling, real error injection, handling of different soft offlining
640 cases, and other tests.
642 **Corrected memory error injection:**
644 To inject corrected memory errors:
646 * Remove sb_edac and edac_core kernel modules: rmmod sb_edac rmmod edac_core
647 * Insert einj module: modprobe einj param_extension=1
648 * Inject an error by specifying details (last command should be repeated at least two times):
652 $ APEI_IF=/sys/kernel/debug/apei/einj
653 $ echo 0x8 > $APEI_IF/error_type
654 $ echo 0x01f5591000 > $APEI_IF/param1
655 $ echo 0xfffffffffffff000 > $APEI_IF/param2
656 $ echo 1 > $APEI_IF/notrigger
657 $ echo 1 > $APEI_IF/error_inject
659 * Check the MCE statistic: mcelog --client. Check the mcelog log for injected error details: less /var/log/mcelog.
662 ^^^^^^^^^^^^^^^^^^^^^
663 OvS Plugins Repo: https://github.com/collectd/collectd
665 OvS Plugins Branch: master
667 OvS Events MIBs: The SNMP OVS interface link status is provided by standard
668 IF-MIB (http://www.net-snmp.org/docs/mibs/IF-MIB.txt)
670 Dependencies: Open vSwitch, Yet Another JSON Library (https://github.com/lloyd/yajl)
672 On Ubuntu, install the dependencies:
676 $ sudo apt-get install libyajl-dev openvswitch-switch
678 Start the Open vSwitch service:
682 $ sudo service openvswitch-switch start
684 configure the ovsdb-server manager:
688 $ sudo ovs-vsctl set-manager ptcp:6640
690 Clone and install the collectd ovs plugin:
696 $ git checkout master
698 $ ./configure --enable-syslog --enable-logfile --enable-debug
702 This will install collectd to /opt/collectd. The collectd configuration file
703 can be found at /opt/collectd/etc. To configure the OVS events plugin you
704 need to modify the configuration file to include:
708 <LoadPlugin ovs_events>
711 <Plugin "ovs_events">
713 Socket "/var/run/openvswitch/db.sock"
714 Interfaces "br0" "veth0"
715 SendNotification false
719 To configure the OVS stats plugin you need to modify the configuration file
724 <LoadPlugin ovs_stats>
730 Socket "/var/run/openvswitch/db.sock"
731 Bridges "br0" "br_ext"
734 For more information on the plugin parameters, please see:
735 https://github.com/collectd/collectd/blob/master/src/collectd.conf.pod
739 Repo: https://github.com/maryamtahhan/collectd/
743 Dependencies: NET-SNMP library
745 Start by installing net-snmp and dependencies.
751 $ apt-get install snmp snmp-mibs-downloader snmpd libsnmp-dev
752 $ systemctl start snmpd.service
756 Become root to install net-snmp dependencies
760 $ apt-get install libperl-dev
762 Clone and build net-snmp
766 $ git clone https://github.com/haad/net-snmp.git
768 $ ./configure --with-persistent-directory="/var/net-snmp" --with-systemd --enable-shared --prefix=/usr
777 Copy default configuration to persistent folder
781 $ cp EXAMPLE.conf /usr/share/snmp/snmpd.conf
783 Set library path and default MIB configuration
788 $ echo export LD_LIBRARY_PATH=/usr/lib >> .bashrc
789 $ net-snmp-config --default-mibdirs
790 $ net-snmp-config --snmpconfpath
792 Configure snmpd as a service
797 $ cp ./dist/snmpd.service /etc/systemd/system/
798 $ systemctl enable snmpd.service
799 $ systemctl start snmpd.service
801 Add the following line to snmpd.conf configuration file
802 "/usr/share/snmp/snmpd.conf" to make all OID tree visible for SNMP clients:
806 view systemonly included .1
808 To verify that SNMP is working you can get IF-MIB table using SNMP client
809 to view the list of Linux interfaces:
813 $ snmpwalk -v 2c -c public localhost IF-MIB::interfaces
815 Clone and install the collectd snmp_agent plugin:
819 $ git clone https://github.com/maryamtahhan/collectd
821 $ git checkout feat_snmp
823 $ ./configure --enable-syslog --enable-logfile --enable-debug --enable-snmp --with-libnetsnmp
827 This will install collectd to /opt/collectd
828 The collectd configuration file can be found at /opt/collectd/etc
829 **SNMP Agent plugin is a generic plugin and cannot work without configuration**.
830 To configure the snmp_agent plugin you need to modify the configuration file to
831 include OIDs mapped to collectd types. The following example maps scalar
832 memAvailReal OID to value represented as free memory type of memory plugin:
836 LoadPlugin snmp_agent
837 <Plugin "snmp_agent">
838 <Data "memAvailReal">
842 OIDs "1.3.6.1.4.1.2021.4.6.0"
846 For more information on the plugin parameters, please see:
847 https://github.com/maryamtahhan/collectd/blob/feat_snmp/src/collectd.conf.pod
849 For more details on AgentX subagent, please see:
850 http://www.net-snmp.org/tutorial/tutorial-5/toolkit/demon/
854 Repo: https://github.com/maryamtahhan/collectd
856 Branch: feat_libvirt_upstream
858 Dependencies: libvirt (https://libvirt.org/), libxml2
860 On Ubuntu, install the dependencies:
864 $ sudo apt-get install libxml2-dev
868 libvirt version in package manager might be quite old and offer only limited
869 functionality. Hence, building and installing libvirt from sources is recommended.
870 Detailed instructions can bet found at:
871 https://libvirt.org/compiling.html
873 Certain metrics provided by the plugin have a requirement on a minimal version of
874 the libvirt API. *File system information* statistics require a *Guest Agent (GA)*
875 to be installed and configured in a VM. User must make sure that installed GA
876 version supports retrieving file system information. Number of *Performance monitoring events*
877 metrics depends on running libvirt daemon version.
879 .. note:: Please keep in mind that RDT metrics (part of *Performance monitoring
880 events*) have to be supported by hardware. For more details on hardware support,
882 https://github.com/01org/intel-cmt-cat
884 Additionally perf metrics **cannot** be collected if *Intel RDT* plugin is enabled.
886 libvirt version can be checked with following commands:
893 .. table:: Extended statistics requirements
895 +-------------------------------+--------------------------+-------------+
896 | Statistic | Min. libvirt API version | Requires GA |
897 +===============================+==========================+=============+
898 | Domain reason | 0.9.2 | No |
899 +-------------------------------+--------------------------+-------------+
900 | Disk errors | 0.9.10 | No |
901 +-------------------------------+--------------------------+-------------+
902 | Job statistics | 1.2.9 | No |
903 +-------------------------------+--------------------------+-------------+
904 | File system information | 1.2.11 | Yes |
905 +-------------------------------+--------------------------+-------------+
906 | Performance monitoring events | 1.3.3 | No |
907 +-------------------------------+--------------------------+-------------+
909 Start libvirt daemon:
913 $ systemctl start libvirtd
915 Create domain (VM) XML configuration file. For more information on domain XML
916 format and examples, please see:
917 https://libvirt.org/formatdomain.html
919 .. note:: Installing additional hypervisor dependencies might be required before
920 deploying virtual machine.
922 Create domain, based on created XML file:
926 $ virsh define DOMAIN_CFG_FILE.xml
932 $ virsh start DOMAIN_NAME
934 Check if domain is running:
940 Check list of available *Performance monitoring events* and their settings:
944 $ virsh perf DOMAIN_NAME
946 Enable or disable *Performance monitoring events* for domain:
950 $ virsh perf DOMAIN_NAME [--enable | --disable] EVENT_NAME --live
952 Clone and install the collectd virt plugin:
958 $ git checkout $BRANCH
960 $ ./configure --enable-syslog --enable-logfile --enable-debug
964 Where ``$REPO`` and ``$BRANCH`` are equal to information provided above.
966 This will install collectd to ``/opt/collectd``. The collectd configuration file
967 ``collectd.conf`` can be found at ``/opt/collectd/etc``. To load the virt plugin
968 user needs to modify the configuration file to include:
974 Additionally, user can specify plugin configuration parameters in this file,
975 such as connection URI, domain name and much more. By default extended virt plugin
976 statistics are disabled. They can be enabled with ``ExtraStats`` option.
982 ExtraStats "cpu_util disk disk_err domain_state fs_info job_stats_background pcpu perf vcpupin"
985 For more information on the plugin parameters, please see:
986 https://github.com/maryamtahhan/collectd/blob/feat_libvirt_upstream/src/collectd.conf.pod
988 Installing collectd as a service
989 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
990 **NOTE**: In an OPNFV installation, collectd is installed and configured as a
993 Collectd service scripts are available in the collectd/contrib directory.
994 To install collectd as a service:
998 $ sudo cp contrib/systemd.collectd.service /etc/systemd/system/
999 $ cd /etc/systemd/system/
1000 $ sudo mv systemd.collectd.service collectd.service
1001 $ sudo chmod +x collectd.service
1003 Modify collectd.service
1008 ExecStart=/opt/collectd/sbin/collectd
1009 EnvironmentFile=-/opt/collectd/etc/
1010 EnvironmentFile=-/opt/collectd/etc/
1011 CapabilityBoundingSet=CAP_SETUID CAP_SETGID
1017 $ sudo systemctl daemon-reload
1018 $ sudo systemctl start collectd.service
1019 $ sudo systemctl status collectd.service should show success
1021 Additional useful plugins
1022 ^^^^^^^^^^^^^^^^^^^^^^^^^^
1024 * **Exec Plugin** : Can be used to show you when notifications are being
1025 generated by calling a bash script that dumps notifications to file. (handy
1026 for debug). Modify /opt/collectd/etc/collectd.conf:
1032 # Exec "user:group" "/path/to/exec"
1033 NotificationExec "user" "<path to barometer>/barometer/src/collectd/collectd_sample_configs/write_notification.sh"
1036 write_notification.sh (just writes the notification passed from exec through
1037 STDIN to a file (/tmp/notifications)):
1042 rm -f /tmp/notifications
1045 echo $x$y >> /tmp/notifications
1048 output to /tmp/notifications should look like:
1056 PluginInstance:br-ex
1058 TypeInstance:link_status
1059 uuid:f2aafeec-fa98-4e76-aec5-18ae9fc74589
1061 linkstate of "br-ex" interface has been changed to "DOWN"
1063 * **logfile plugin**: Can be used to log collectd activity. Modify
1064 /opt/collectd/etc/collectd.conf to include:
1071 File "/var/log/collectd.log"
1077 Monitoring Interfaces and Openstack Support
1078 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1079 .. Figure:: monitoring_interfaces.png
1081 Monitoring Interfaces and Openstack Support
1083 The figure above shows the DPDK L2 forwarding application running on a compute
1084 node, sending and receiving traffic. collectd is also running on this compute
1085 node retrieving the stats periodically from DPDK through the dpdkstat plugin
1086 and publishing the retrieved stats to Ceilometer through the ceilometer plugin.
1088 To see this demo in action please checkout: `Barometer OPNFV Summit demo`_
1092 .. [1] https://collectd.org/wiki/index.php/Naming_schema
1093 .. [2] https://github.com/collectd/collectd/blob/master/src/daemon/plugin.h
1094 .. [3] https://collectd.org/wiki/index.php/Value_list_t
1095 .. [4] https://collectd.org/wiki/index.php/Data_set
1096 .. [5] https://collectd.org/documentation/manpages/types.db.5.shtml
1097 .. [6] https://collectd.org/wiki/index.php/Data_source
1098 .. [7] https://collectd.org/wiki/index.php/Meta_Data_Interface
1100 .. _Barometer OPNFV Summit demo: https://prezi.com/kjv6o8ixs6se/software-fastpath-service-quality-metrics-demo/
1101 .. _ceilometer plugin: https://github.com/openstack/collectd-ceilometer-plugin/tree/stable/mitaka