Minimum System Requirements
Your system must meet the following minimum specifications to run Horizon:
| Just Testing 1 | Minimum Server Specification 2 | |
|---|---|---|
CPU |
2GHz dual core x86_64 |
3GHz quad core x86_64 and above |
RAM |
4GB (physical) |
16GB (physical) and above |
Storage (disk space) |
50-GB HDD, SSD |
1TB with SSD and above |
-
You can install the packages, and the Horizon services start.
-
Your intended workload (network size, number of monitored metrics, flows, events, and data retention requirements) affects these requirements.
Operating systems
OpenNMS Horizon requires one of the following operating systems:
| Operating System | Compatible Versions (64-bit) |
|---|---|
RHEL |
7.x |
CentOS |
7.x |
Debian |
9 - 11 |
Ubuntu |
20.04 LTS |
Rocky Linux |
9.x |
See the release notes for information about platform support changes, including deprecated platforms.
Compatibility
Horizon 33.1.8 is compatible with the following components. Components marked with an asterisk are required:
| Component | Version Compatibility |
|---|---|
OpenNMS plugin for Grafana |
7+ |
OpenNMS Plugin API |
0.6.x |
Cassandra |
3.11.x |
Elasticsearch |
6.7.0 - 7.17.9 |
Java Development Kit * |
OpenJDK 11 or 17 |
Kafka |
1.x - 3.x |
PostgreSQL * |
10.x - 15.x |
RRDTool * |
1.7.x |
Browser * |
Latest Mozilla Firefox or Google Chrome |
Containerized environments
See containerized deployment for information on deploying Horizon via Kubernetes or OpenShift.