542996 - Add metrics/statistics tracking

Status: RESOLVED FIXED

(Skywriter Graveyard :: Server, defect, P1)

Description

[Kevin Dangoor]

In order to see how Bespin is doing over time, we need to start collecting some 
data. Of course, we want to do so without impacting user privacy. We will 
collect data without storing user identifying information. The data we want to 
collect initially is:

1. registered users
2. active daily users
3. time using the system for active users
4. number of user-installed plugins in use
5. server load at various points throughout the day
6. total disk usage daily

Plotting out this basic information over time will start to give us a picture 
of how people use the service at bespin.mozilla.com.

Comment 1

[Kevin Dangoor]

I've moved #5 and 6 (the two server resource usage items) to a separate bug 
(bug 553134), because that's really a separate issue.

I've added a new "eventlog" table to keep track of these events. We'll work 
with the metrics group to do reporting on the data from this table.

registered users are tracked as an event when a new user is created.

active daily users is tracked by file saves (assuming that one operation an 
active user will do every day is save their file)

time using the system is also tracked by file saves (assuming that users don't 
go *too long* between saves this gives us a decent estimate of how long the 
system was used for)

number of user installed plugins is tracked whenver /plugin/register/user is 
called.

this is done as of changeset ec46947c1669 in bespinserver.