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A resilient, open source monitoring system
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What is Icinga?

It monitors availability and performance, gives you simple access to relevant data and raises alerts to keep you in the loop. It was originally created as a fork of the Nagios system monitoring application.
Icinga is a tool in the Monitoring Tools category of a tech stack.

Who uses Icinga?

24 companies reportedly use Icinga in their tech stacks, including Shortlist.co, GatewayAPI, and DataGlen.

25 developers on StackShare have stated that they use Icinga.

Icinga Integrations

Why developers like Icinga?

Here’s a list of reasons why companies and developers use Icinga
Top Reasons
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Icinga Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose Icinga in their tech stack.

StackShare Editors
StackShare Editors

One size definitely doesn’t fit all when it comes to open source monitoring solutions, and executing generally understood best practices in the context of unique distributed systems presents all sorts of problems. Megan Anctil, a senior engineer on the Technical Operations team at Slack gave a talk at an O’Reilly Velocity Conference sharing pain points and lessons learned at wrangling known technologies such as Icinga, Graphite, Grafana, and the Elastic Stack to best fit the company’s use cases.

At the time, Slack used a few well-known monitoring tools since it’s Technical Operations team wasn’t large enough to build an in-house solution for all of these. Nor did the team think it’s sustainable to throw money at the problem, given the volume of information processed and the not-insignificant price and rigidity of many vendor solutions. With thousands of servers across multiple regions and millions of metrics and documents being processed and indexed per second, the team had to figure out how to scale these technologies to fit Slack’s needs.

On the backend, they experimented with multiple clusters in both Graphite and ELK, distributed Icinga nodes, and more. At the same time, they’ve tried to build usability into Grafana that reflects the team’s mental models of the system and have found ways to make alerts from Icinga more insightful and actionable.

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Icinga Alternatives & Comparisons

What are some alternatives to Icinga?
Nagios is a host/service/network monitoring program written in C and released under the GNU General Public License.
Sensu is the future-proof solution for multi-cloud monitoring at scale. The Sensu monitoring event pipeline empowers businesses to automate their monitoring workflows and gain deep visibility into their multi-cloud environments.
Shinken's main goal is to give users a flexible architecture for their monitoring system that is designed to scale to large environments. Shinken is backwards-compatible with the Nagios configuration standard and plugins. It works on any operating system and architecture that supports Python, which includes Windows, GNU/Linux and FreeBSD.
Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics.
It can monitor and classify system conditions like bandwidth usage or uptime and collect statistics from miscellaneous hosts as switches, routers, servers and other devices and applications.
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Icinga's Followers
10 developers follow Icinga to keep up with related blogs and decisions.
Misha Yang
James Wallace
Pablo Porto
Florian Engelmann
Paul Caskey