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Bosun vs Nagios: What are the differences?
Bosun: Open-source monitoring and alerting system by Stack Exchange. Bosun is an open-source, MIT licensed, monitoring and alerting system by Stack Exchange. It has an expressive domain specific language for evaluating alerts and creating detailed notifications. It also lets you test your alerts against history for a faster development experience; Nagios: Complete monitoring and alerting for servers, switches, applications, and services. Nagios is a host/service/network monitoring program written in C and released under the GNU General Public License.
Bosun and Nagios can be categorized as "Monitoring" tools.
Some of the features offered by Bosun are:
- Save time by testing alerting against historical data and reduce alert noise before an alert goes into production
- Supports querying OpenTSDB, Graphite, and Logstash-Elasticsearch
- Create notifications using Bosun's template language: include graphs, tables, and contextual information
On the other hand, Nagios provides the following key features:
- Monitor your entire IT infrastructure
- Spot problems before they occur
- Know immediately when problems arise
Bosun and Nagios are both open source tools. It seems that Bosun with 2.84K GitHub stars and 477 forks on GitHub has more adoption than Nagios with 60 GitHub stars and 36 GitHub forks.
- free open source
- modern interface and architecture
- large community
- extendable I knew Nagios for decades but it was really outdated (by its architecture) at some point. That's why Icinga started first as a fork, not with Icinga2 it is completely built from scratch but backward-compatible with Nagios plugins. Now it has reached a state with which I am confident.
Pros of Bosun
- Powerful alerting1
- Query multiple tsdbs1
- Query Elasticsearch1
Pros of Nagios
- It just works53
- The standard28
- Customizable12
- The Most flexible monitoring system8
- Huge stack of free checks/plugins to choose from1