Module Description

Implements XEP-0012: Last Activity.

Use with caution, as it was observed that a user disconnect spike might result in overloading the database with "last activity" writes.


  • iqdisc (default: one_queue)
  • backend (atom, default: mnesia): Storage backend. Currently mnesia, odbc and riak are supported.

Example Configuration

{mod_last, []}


If you'd like to learn more about metrics in MongooseIM, please visit MongooseIM metrics page.

Name Type Description (when it gets incremented)
[global, backends, mod_last, get_last] histogram Time it takes to fetch the timestamp from DB.
[global, backends, mod_last, set_last_info] histogram Time it takes to store the timestamp in DB.