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OpenNMS Meridian vs. Sensu, by Sumo Logic

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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    OpenNMS Meridian

    Score8.9 out of 10
    N/AOpenNMS Meridian is a scalable open source network management platform with network traffic analysis, network discovery, alerting, and monitoring. It's presented as a solution to monitor enterprise network performance and ensure the availability and performance of critical network services.

    $42,000

    per year

    Sensu

    Score8 out of 10
    Enterprise companies (1,001+ employees)
    Sensu, now from Sumo Logic (acquired in June of 2021) is presented as a future-proof solution for multi-cloud monitoring at scale. The Sensu monitoring event pipeline is used by businesses to automate their monitoring workflows and gain visibility into their multi-cloud environments. The vendor boasts companies like Sony, Box.com, and Activision use Sensu to help deliver value to their customers. Sensu offers a comprehensive monitoring solution for enterprises, providing visibility across every…N/A
    Pricing
    OpenNMS MeridianSensu
    Editions & Modules
    Essential
    $42,000
    per year Up to 2 Meridian and cores Up to 25 Minions
    Premier
    $56,700
    per year Up to 4 Meridian cores and Up to 100 Minions
    Premier+
    Custom
    No answers on this topic
    Offerings
    Pricing Offerings
    OpenNMS MeridianSensu
    Free Trial
    NoYes
    Free/Freemium Version
    NoYes
    Premium Consulting/Integration Services
    YesYes
    Entry-level Setup FeeOptionalOptional
    Additional DetailsAdd-Ons: -24/7 Emergency Support: $24,000 / year -Mini OpenNMS Appliance: $750 ea.—
    More Pricing Information
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    User Ratings
    OpenNMS MeridianSensu
    Likelihood to Recommend
    8.4
    (4 ratings)
    8.6
    (2 ratings)
    Support Rating
    -
    (0 ratings)
    3.0
    (1 ratings)
    User Testimonials
    OpenNMS MeridianSensu
    Likelihood to Recommend
    The OpenNMS Group
    I would recommend all system administrators use some form of network monitoring if they are not already doing so, and I'd definitely recommend people consider OpenNMS if they're shopping around. Small businesses will benefit from the low-cost of entry (it's free!), whilst getting all the enterprise features. Larger businesses can benefit from paid support plans.
    However, there's no getting around the fact that you will require some advanced networking and sysadmin knowledge to get the most out of OpenNMS, or at least, be prepared for a steep learning curve. If you don't have the resources to devote this time initially, you may struggle.
    Incentivized
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    Sumo Logic
    • Well suited for raising pagers when you have count-based metrics.
    • Well suited for threshold-based metrics.
    • Not well suited for tracking events over the day, since graphs and other visualizations are missing.
    Incentivized
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    Pros
    The OpenNMS Group
    • Report on SLA
    • Group network areas
    • Discovery of elements
    Incentivized
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    Sumo Logic
    • Unique concept as a "monitoring router" that can tie services together.
    • Backward-compatible with Nagios environments.
    • More of a DevOps focus than Nagios.
    Incentivized
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    Cons
    The OpenNMS Group
    • 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.
    Incentivized
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    Sumo Logic
    • Cannot be solely used for tracking metrics over time.
    • Not a very good UI.
    Incentivized
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    Support Rating
    The OpenNMS Group
    No answers on this topic
    Sumo Logic
    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.
    Incentivized
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    Alternatives Considered
    The OpenNMS Group
    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.
    Incentivized
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    Sumo Logic
    Have used New Relic and Sematext Cloud for APM and for tracking over days and visualizing the issues. But those are very expensive as compared to Sensu.
    Incentivized
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    Return on Investment
    The OpenNMS Group
    • Initial adoption required quite a lot of resources and time to get everything right. Totally worth it for us; just be prepared for a gradual process that will get better and better with time.
    • Once setup and running smoothly, it provides us with all the reporting we could hope for, at near zero cost.
    • With OpenNMS, we're able to offer a much more reliable service to our customers, and spend a lot less time dealing with issues.
    Incentivized
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    Sumo Logic
    • 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.
    Incentivized
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    ScreenShots

    Sensu Screenshots

    Screenshot of Sensu dashboard homepageScreenshot of Sensu dashboard namespace switcherScreenshot of Sensu events displayed in Grafana. In the examples above, Sensu is comfortably handling 40,000 Sensu agent connections (and their keepalives) and processing over 36,000 events per second.Screenshot of Sensu events displayed in Grafana. In the examples above, Sensu is comfortably handling 40,000 Sensu agent connections (and their keepalives) and processing over 36,000 events per second.