Ceilometer is a monitoring tool that provides a common data model for storage, compute, and other resources in OpenStack. It collects metrics and events from various OpenStack components and provides a centralized view for monitoring and alerting.
Key Features
- Data Collection: Ceilometer collects metrics and events from OpenStack services like Nova, Cinder, Neutron, and more.
- Data Aggregation: The collected data is aggregated and stored in a time-series database for analysis.
- Alerting: Ceilometer can trigger alerts based on predefined thresholds.
- Integration: It integrates with various OpenStack components and external systems.
Getting Started
To get started with Ceilometer, you can refer to the official documentation.
Prerequisites
Before installing Ceilometer, ensure that you have the following prerequisites:
- OpenStack environment installed and running.
- Python development tools and libraries.
- Database server (e.g., PostgreSQL, MySQL).
Architecture
Ceilometer architecture consists of several components:
- Ceilometer Agent: Collects metrics and events from OpenStack services.
- Ceilometer Collector: Aggregates and stores the collected data.
- Ceilometer API: Provides a RESTful API for accessing the collected data.
- Ceilometer Notification: Sends notifications based on events.
Usage
To use Ceilometer, you can perform the following tasks:
- Query Metrics: Retrieve metrics from the time-series database.
- Set Alerts: Configure alerts based on predefined thresholds.
- Generate Reports: Generate reports based on the collected data.
For detailed usage instructions, refer to the official documentation.
Conclusion
Ceilometer is a powerful monitoring tool for OpenStack environments. It helps you monitor and manage your OpenStack resources effectively. For more information, visit the official Ceilometer website.