Enable network metrics (proc.net.*)

A customer recently inquired about missing data in the "Network Bandwidth" graph.  This graph is supported by data from the proc.net.* metrics (particularly proc.net.bytes). The Scalyr Agent only looks for network interfaces with an eth prefix, so if you are running a distribution where this differs, the associated proc.net data will not show up.

To update the network prefix that is used, follow these steps:

In your /etc/scalyr-agent-2/agent.json configuration file, confirm that the implicit metrics monitor is turned off.

...

implicit_metric_monitor: false,

...

Add the Linux system metrics monitor to your monitors section and define the network prefix that your distribution uses.

 ...

 monitors: [
      {
        module: "scalyr_agent.builtin_monitors.linux_system_metrics",    
        network_interface_prefixes: "ens",
      }
   ]

These changes will be automatically picked up by the Scalyr Agent once you have saved the agent.json file (the Scalyr Agent does not need to be manually restarted).