Monitoring

Monitorimg

Any complicated system need to be monitored. LMA (Logging Monitoring Alerting) Fuel Plugins provides complex logging, monitoring and alerting system for Mirantis Openstack. LMA use open-source products and can be also integrated with currently existing monitoring systems.
In this manual will be described complex configuration include 4 plugins:

• ElasticSearch/Kibana – Log Search, Filtration and Analysis
• LMA Collector – LMA Toolchain Data Aggregation Client
• InfluxDB/Grafana – Time-Series Event Recording and Analysis
• LMA Nagios – Alerting for LMA Infrastructure

(more details about MOS fuel plugins: MOS Plugins overview
It is possible to use LMA-related plugins separately but the are designed to be used in complex. In this document all examples are from cloud where all 4 plugins are installed and configured.

LMA DataFlow

LMA is complex system and contains the follwing parts:

• Collectd - data collecting
• Heka - data collecting and aggregation
• InluxDB - non-SQL database for time-based data, in LMA it is is used for charts in Grafana
• [https://www.elastic.co/ ElasticSearch - non-SQL database, in LMA it is used to save logs.
• Grafana - Graph and dashboard builder
• Kibana - Analytics and visualization platform
• Nagios - Monitoring system

+--------------------------------+                                                                                   Grafana dashboard                      Kibana Dashboard
|Node N (compute or controller)  |                                                                                  -------------------                 ----------------------
|                                |                                                                                           ^                                       ^
|* collectd --->---+             |                                                                                           |                                       |          
|                  |             |                     +-<- Some data generated locally is looped to-<+                      |                                       |                
|                  |             |                     |    to be aggregated                          |                      |                                       |                
|*  hekad  <---<---+             |                     |                                              ^                      |                                       |                
|    |                           |       +-------------------------------------------+                |                      ^                                       |                
|    +------------->To Aggregator|------>| Heka on aggregator (Controller with VIP)  |---+------------+                      |                                       |                
|    |                           |       +-------------------------------------------+                                       |                                       |                     
|    |                           |               |to         |to            |to                                              |                                       |                   
|    |                           |               |Influx     |ElasticSearch |Nagios                                          |                                       |           
|    +---------------------------|->-------->--- +-------->--|------->------|--->---------->---------->--------------[ InfuxDB       ]                               ^
|    |                           |                           |              |                                                                                        |
|    |                           |                           |              |                                                                                        |
|    +---------------------------|------------------------>--+------->------|--->---------->---------->--------------[ ElasticSearch ]-------------------------------+
|                                |                                          |                                                                    
+--------------------------------+                                          |
                                                                            +----------------------------------------[ Nagios ]---> Alerts (e.g. email notifications)

Collectd

Collectd is collecting data, all details about collect are in separate document.

• Collectd in LMA detailed review

Heka

Heka is comolex tool so data flow in Heka is described in separate documents and divided on parts

• Heka in general
• Heka inputs details
• Heka Splitters
• Heka Decoders
• Heka debuging review
• How to create your own Heka filter, Output and Nagios integration

Nagios

Passive checks overview: ToBeDone!