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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) OPNFV, Intel Corporation and others.
collectd VES plugin
===================
The Barometer repository contains a python based write plugin for VES.
The plugin currently supports pushing platform relevant metrics through the
additional measurements field for VES.
**Please note**: Hardcoded configuration values will be modified so that they
are configurable through the configuration file.
Installation Instructions:
--------------------------
1. Clone this repo
2. Install collectd
.. code:: bash
$ sudo apt-get install collectd
3. Modify the collectd configuration script: `/etc/collectd/collectd.conf`
.. code:: bash
<LoadPlugin python>
Globals true
</LoadPlugin>
<Plugin python>
ModulePath "/path/to/your/python/modules"
LogTraces true
Interactive false
Import "ves_plugin"
<Module ves_plugin>
# VES plugin configuration (see next section below)
</Module>
</Plugin>
where "/path/to/your/python/modules" is the path to where you cloned this repo
VES python plugin configuration description:
--------------------------------------------
**Note** Details of the Vendor Event Listener REST service
REST resources are defined with respect to a ServerRoot:
.. code:: bash
ServerRoot = https://{Domain}:{Port}/{optionalRoutingPath}
REST resources are of the form:
.. code:: bash
{ServerRoot}/eventListener/v{apiVersion}`
{ServerRoot}/eventListener/v{apiVersion}/{topicName}`
{ServerRoot}/eventListener/v{apiVersion}/eventBatch`
**Domain** *"host"*
* VES domain name. It can be IP address or hostname of VES collector
(default: `127.0.0.1`)
**Port** *port*
* VES port (default: `30000`)
**Path** *"path"*
* Used as the "optionalRoutingPath" element in the REST path (default: `empty`)
**Topic** *"path"*
* Used as the "topicName" element in the REST path (default: `empty`)
**UseHttps** *true|false*
* Allow plugin to use HTTPS instead of HTTP (default: `false`)
**Username** *"username"*
* VES collector user name (default: `empty`)
**Password** *"passwd"*
* VES collector password (default: `empty`)
**FunctionalRole** *"role"*
* Used as the 'functionalRole' field of 'commonEventHeader' event (default:
`Collectd VES Agent`)
**GuestRunning** *true|false*
* This option is used if the collectd is running on a guest machine, e.g this
option should be set to `true` in this case. Defaults to `false`.
Other collectd.conf configurations
----------------------------------
Please ensure that FQDNLookup is set to false
.. code:: bash
FQDNLookup false
Please ensure that the virt plugin is enabled and configured as follows. This configuration
is is required only on a host side ('GuestRunning' = false).
.. code:: bash
LoadPlugin virt
<Plugin virt>
Connection "qemu:///system"
RefreshInterval 60
HostnameFormat uuid
</Plugin>
Please ensure that the cpu plugin is enabled and configured as follows
.. code:: bash
LoadPlugin cpu
<Plugin cpu>
ReportByCpu false
ValuesPercentage true
</Plugin>
Please ensure that the aggregation plugin is enabled and configured as follows
.. code:: bash
LoadPlugin aggregation
<Plugin aggregation>
<Aggregation>
Plugin "cpu"
Type "percent"
GroupBy "Host"
GroupBy "TypeInstance"
SetPlugin "cpu-aggregation"
CalculateAverage true
</Aggregation>
</Plugin>
If plugin is running on a guest side, it is important to enable uuid plugin
too. In this case the hostname in event message will be represented as UUID
instead of system host name.
LoadPlugin uuid
If custom UUID needs to be provided, the following configuration is required in collectd.conf
file:
.. code:: bash
<Plugin uuid>
UUIDFile "/etc/uuid"
</Plugin>
Where "/etc/uuid" is a file containing custom UUID.
Please also ensure that the following plugins are enabled:
.. code:: bash
LoadPlugin disk
LoadPlugin interface
LoadPlugin memory
VES plugin notification example
-------------------------------
A good example of collectD notification is monitoring of CPU load on a host or guest using
'threshold' plugin. The following configuration will setup VES plugin to send 'Fault'
event every time a CPU idle value is out of range (e.g.: WARNING: CPU-IDLE < 50%, CRITICAL:
CPU-IDLE < 30%) and send 'Fault' NORMAL event if CPU idle value is back to normal.
.. code:: bash
LoadPlugin threshold
<Plugin "threshold">
<Plugin "cpu-aggregation">
<Type "percent">
WarningMin 50.0
WarningMax 100.0
FailureMin 30.0
FailureMax 100.0
Instance "idle"
Hits 1
</Type>
</Plugin>
</Plugin>
More detailed information on how to configure collectD thresholds(memory, cpu
etc.) can be found here at
https://collectd.org/documentation/manpages/collectd-threshold.5.shtml
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