Open source monitoring tools

Monitoring tools can show real-time information about the system, service, and hardware status. Through this information, a system administrator can tell whether there is something acting weirdly or showing weakness. Then, they can act and try to resolve the issue before it gets worse.

This section presents the most common open source monitoring tools. A monitoring tool is usually chosen depending on what its main need is. Some monitoring tools are specialized in monitoring the characteristics of a set of machines. Others help store and generate a graph of the history to be used for future system analysis.

Many organizations rely on their monitoring tools to output, in order to not only maintain their system and prevent potential problems, but also to determine their system's rush hours and when the system is more idle status This helps them rather reinforce their system capacities and save power and resources.

Ganglia

We will start by talking about one of the most...