What users are saying about
7 Ratings
3 Ratings
7 Ratings
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Score 5.4 out of 100
3 Ratings
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Score 5.7 out of 100

Likelihood to Recommend

OpenNMS

We've been using OpenNMS for network monitoring and have been fairly happy with it. There can be a bit of a learning curve to the setup and installation which might turn some people off, but if you can work through the learning curve it's a pretty powerful tool at the awesome price of free (paid support is available).
Anonymous | TrustRadius Reviewer

Sensu

Sooner or later, companies are going to figure out that there's more to monitoring than what Nagios can provide. For those that want to dip their toe in the water and still provide backward compatibility with a legacy Nagios environment, Sensu is a good choice.It's mainly for businesses that want more than Nagios but don't want to take the full plunge with something radically different and metric-based such as Prometheus.Having moved to metric-based monitoring so far as I'm able, I can say with confidence that it's far better than what Nagios or Sensu provide.
Anonymous | TrustRadius Reviewer

Feature Rating Comparison

Application Performance Management

OpenNMS
Sensu
3.2
Application monitoring
OpenNMS
Sensu
3.0
Database monitoring
OpenNMS
Sensu
3.0
Threshold alerts
OpenNMS
Sensu
6.0
Application performance management console
OpenNMS
Sensu
1.0
Virtualization monitoring
OpenNMS
Sensu
3.0
Server availability and performance monitoring
OpenNMS
Sensu
3.0

Pros

OpenNMS

  • When we used OpenNMS you could download the base package for free and configure it fairly easily for your own environment. You can't beat that kind of price break.
  • OpenNMS had a very nice looking GUI that was easily navigated and fairly straightforward to understand and configure.
  • There were a wide variety of add-ons available for download and implementation.
Derrick Barnsdale | TrustRadius Reviewer

Sensu

  • Unique concept as a "monitoring router" that can tie services together.
  • Backward-compatible with Nagios environments.
  • More of a DevOps focus than Nagios.
Anonymous | TrustRadius Reviewer

Cons

OpenNMS

  • We've had a few issues with delayed alerting.
  • I haven't quite figured out how to make topologies work yet, but I haven't spent a ton of time on it either.
  • We've also had a bit of trouble importing some MIBs, but that usually boiled down to working with the vendor to make sure we had the right MIBs and dependencies.
Anonymous | TrustRadius Reviewer

Sensu

  • Terrible documentation that assumes you're already an expert in everything that Sensu can do.
  • Significantly more work than Nagios to get basic checks on and configured.
  • Web interface is primitive and not even on the same level as Nagios XI.
  • Large price hikes after Sensu Go was released.
Anonymous | TrustRadius Reviewer

Support Rating

OpenNMS

No score
No answers yet
No answers on this topic

Sensu

Sensu 3.0
Based on 1 answer
Sensu's customer support was always willing to work with us but never really seemed to learn much from our experiences. I think they get a lot of customers with DevOps IT teams that are willing to put in a lot of elbow grease to get the most of Sensu's architecture.However, despite explaining my continued disappointment with their documentation and the overall flow of the product, I never got much more than a "sorry" and a notice that their documentation was open source if I wanted to contribute to it.The problem, of course, is that you can't document what you don't understand. I'm a former technical writer, so I know that better than most.
Anonymous | TrustRadius Reviewer

Alternatives Considered

OpenNMS

OpenNMS's more attractive GUI and its price break were the main reasons our company chose to explore and use this product. However, it never managed to actually replace Nagios which had a much more established hold within the company. Perhaps we were over-monitoring, but our company claimed a $100k loss per hour of downtime.
Derrick Barnsdale | TrustRadius Reviewer

Sensu

We initially compared Sensu to Nagios XI. Nagios has languished for years and clearly wouldn't scale well without a lot of effort, while Sensu's architecture was clearly designed to be better at scaling horizontally.
Anonymous | TrustRadius Reviewer

Return on Investment

OpenNMS

  • We've been able to improve our customers' experience.
  • Because we're able to respond to issues quicker, we're able to better meet our SLAs.
  • We are able to see smaller problems and address them before they become big problems.
Anonymous | TrustRadius Reviewer

Sensu

  • Standing up the Sensu Go server took very little effort.
  • Setting up and maintaining the build processes and deployment logic for Sensu assets and checks was somewhat exhausting and resulted in lower adoption among non-DevOps IT.
  • The limited web interface resulted in lower adoption among non-DevOps IT.
Anonymous | TrustRadius Reviewer

Screenshots

Pricing Details

OpenNMS

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?

Sensu

General

Free Trial
Yes
Free/Freemium Version
Yes
Premium Consulting/Integration Services
Yes
Entry-level set up fee?
Optional

Rating Summary

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