Archiva's logs directory contains a security log file named archiva-security-audit.log, which keeps track of all the security operations such as user creation/deletion, user role assignments, and user log in/out.
A typical record looks like this:
2009-07-22 12:03:11 - - Successful Login for user admin 2009-07-22 12:05:03 - admin - User Created: archiva 2009-07-22 12:05:25 - admin - Role Assigned to user archiva: Global Repository Manager 2009-07-22 12:05:33 - admin - User Modified: archiva
The hyphen delimited records are:
Currently, the following events are logged: