Time for action – generating graphical reports with Calamaris

Now, let's learn to generate HTML and graphical statistics using Calamaris. To generate graphical stats, we need to create a directory where Calamaris can dump image files. So, let's see how it works:

$ mkdir stats
$ cat access.log  | calamaris -a --output-file access_stats.html -F html,graph --output-path ./stats/

The previous command will generate an access_stats.html file along with a few image files in the stats directory. Let's have a look at a few images from the stats directory:

This image is a graph of TCP requests by the Squid status. On the left-hand side is a scale representing the number of requests, and on the right-hand side is a scale representing the data transferred in Gigabytes. As we can see from the previous graph, around 17 million requests resulted in a hit. This means that they could be served from the cache without fetching data from remote servers.

Let's have a look at another graph:

The previous screenshot...