OpenNMS vs Riemann
OpenNMS
opennms.comRiemann
riemann.ioSide by side
| Figure | OpenNMS | Riemann |
|---|---|---|
| Price from | $500/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 6 | 0 |
| Spec score · Alert Management Software | 8.3 (#10) | 7.4 (#25) |
| Integrations | The FAQ lists email, Slack, Mattermost, custom scripts or webhooks, Jira, Remedy, TSRM, Grafana, and a REST API among integrations. | The maker lists forwarding events to Graphite and a built-in Librato Metrics integration. |
| Purpose | OpenNMS is an open-source network monitoring platform for fault, performance, traffic monitoring, and alarm generation across local and distributed networks. | Riemann aggregates events from servers and applications and processes them with a stream processing language. |
| Security | The company says its security program aligns with ISO 27001/27002, CCPA, and GDPR frameworks, and major Meridian versions receive third-party penetration testing and remediation before release. | Riemann supports bidirectional TLS authentication for TCP connections, and its documentation also describes using a VPN or SSH tunnel. |
| Support | Meridian subscriptions include support options and severity-based SLAs; the listed standard coverage is 7 a.m. to 7 p.m. ET Monday through Friday, with 24/7 emergency support as an add-on. | The maker directs users to IRC, a mailing list, or GitHub Issues for help and describes Riemann as a volunteer effort. |
Plans
OpenNMS
- HorizonFree
- Basic$6,000 a year
- Standard$12,000 a year
- Essential$49,000 a year
- Premier$66,000 a year
- Premier+Priced on request
In their own words
OpenNMS
OpenNMS is an open-source platform for monitoring faults, performance, traffic, and alarms across local and distributed networks. Horizon is the free community distribution with the newest features; Meridian is the stable subscription version. Data collection supports SNMP, JSON, WinRM, XML, SQL, JMX, SFTP, FTP, JDBC, HTTP, HTTPS, VMware, WS-Management, and Prometheus. Traffic monitoring handles NetFlow v.5/9, IPFIX, and sFlow, with stated capacity above 300,000 flows per second. Minions extend monitoring to remote devices and services, including locations behind firewalls or NAT through ActiveMQ or Apache Kafka. Integrations include email, Slack, Mattermost, scripts or webhooks, Jira, Remedy, TSRM, Grafana, and a REST API. Grafana views can show alarms, outages, KPIs, NetFlow, and data from multiple instances. The software supports API, Linux, self-hosted, and web deployments. Horizon is free; Meridian plans range from $6,000 a year to $66,000 a year, with larger deployments priced on request.