1.8 KiB
Ceilometer Redis plugin
Ceilometer Redis Plugin provides a coordination mechanism for Ceilometer agents. The first version of plugin will support only Central Agent. It uses tooz library with Redis backend to provide a set of resources to be polled for each Central agent. The plugin also changes deployment of Ceilometer central agent: now every controller has its own running ceilometer central service which are joined into coordination group. These changes in deployment will be done automatically. It also configures redis-server under pacemaker to monitor its process. The plugin configures redis-sentinel to monitor the state of redis cluster, to elect new master during failovers, to forward ceilometer agents to new elected redis master, to organize sync between redis nodes.
Requirements
| Requirement | Version/Comment |
|---|---|
| Fuel | 7.0 |
| tooz | <0.14.0,>=0.13.1 |
Limitations
- The plugin version 1.0-1.0.0-1 provides coordination only for Agent Central service. Alarm evaluator and Notification agent will be supported in the next plugin version.
- The plugin works correctly only on clouds with odd numbers of controllers. This requirement is mandatory because Redis needs an odd number of nodes to choose the master successfully.