NetData Detailed Linux Monitoring

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Netdata Screenshot
Netdata Screenshot

We have been looking at different monitoring tools for our testing. One that has shown promise is called NetData (on the web as my-netdata.io and Twitter as @linuxnetdata). We just wanted to show off how cool the container looks:

Netdata Screenshot
Netdata Screenshot

You can see very detailed metrics in a number of areas all navigable via the right side management plane.

Monitoring a Single Server with NetData

What drew us to this solution is that it is open, on Github, and it has a unique feature: it can monitor containers. For example, here is a container on a Lenovo X3650 server that is crunching numbers across two CPUs.

Lenovo Server Using My-NetData monitoring
Lenovo Server Using My-NetData monitoring

Using this you can see the overall system and interrupt picture, and also drill down into each container to see resource utilization. For example, if a container is compute, network or disk I/O heavy, My-NetData will easily let you drill into a system and see what is going on.

Another great feature is that My-NetData actually monitors the resources it is using while providing metrics. Here is what that looks like:

We like the fact that the default theme is dark. It makes static dashboard reporting easy and looks great if you want to have a monitor in the office set up as a dashboard for an engineering team to see.

Monitoring Multiple Servers with NetData

Instead of centralizing, the NetData service creates a local registry that allows you to switch between nodes you have monitored via a menu in the top left.

Netdata Registry

That means that each server can collect detailed metrics without the overhead of constantly submitting those metrics to a centralized server. The idea is that it enables higher polling frequency using this method.

Conclusion

We really like the My-NetData project. You should check it out. While there other, more robust monitoring tools for huge clusters, if you have machines numbering in the dozens, you should give this project a try. It is sleek and fast.