SolarWinds NPM vs Riemann: What are the differences?

SolarWinds NPM: Multi-vendor network monitoring that scales and expands with the needs of your network. It is an advanced network monitoring software that scales and expands with the needs of your network; Riemann: A network monitoring system. Riemann aggregates events from your servers and applications with a powerful stream processing language. Send an email for every exception in your app. Track the latency distribution of your web app. See the top processes on any host, by memory and CPU.

SolarWinds NPM and Riemann can be primarily classified as "Network Monitoring" tools.

Some of the features offered by SolarWinds NPM are:

• Multi-vendor network monitoring
• Network Insights for deeper visibility
• Intelligent maps

On the other hand, Riemann provides the following key features:

• See your system at a glance with a Sinatra app
• Throttle or roll up multiple events into a single message
• Forward any event stream to Graphite

Riemann is an open source tool with 3.96K GitHub stars and 525 GitHub forks. Here's a link to Riemann's open source repository on GitHub.