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Nagios vs RRDtool: What are the differences?
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; RRDtool: High performance data logging and graphing system for time series data. RRDtool lets you log and analyze the data you gather from all kinds of data-sources (DS). The data analysis part of RRDtool is based on the ability to quickly generate graphical representations of the data values collected over a definable time period.
Nagios and RRDtool can be primarily classified as "Monitoring" tools.
"It just works" is the primary reason why developers consider Nagios over the competitors, whereas "Do one thing and do it well" was stated as the key factor in picking RRDtool.
Nagios and RRDtool are both open source tools. RRDtool with 571 GitHub stars and 199 forks on GitHub appears to be more popular 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- extendable I knew Nagios for decades but it was really outdated (by its architecture) at some point.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 Nagios
- It just works53
- The standard28
- Customizable12
- The Most flexible monitoring system8
- Huge stack of free checks/plugins to choose from1
Pros of RRDtool
- Do one thing and do it well6