Aragorn

Proof of Concept of a a watcher tool that runs on user-space and monitors tcpdump for predefine-able patterns and has a configurable module to act upon these observed metrics.

As a Demonstration, the tool looks for Redis latencies and prints them to the console.

Building

Clone this repository and run Cargo build. You'll naturally need Rust installed.

Running

Run the binary with the following command:

sudo ./target/debug/aragorn  --interface en0 --redis-port 6379

This will start the watcher on interface en0 and will look for Redis latencies on port 6379.

This then measures redis latencies by Key like so:

redis-cli
> set abc 123
OK
> RPUSH large_list $(seq 1 100000)
(integer) 24

This will print the latencies of the above commands to the console like so

     Running `target/debug/aragorn --interface en0 --redis-port 6379`
Key: setabc123, Latency: 35ms
Key: RPUSHlarge_list$(seq1100000), Latency: 39ms