This repository provides a dovecot_exporter utility that can be used
to scrape statistics from Dovecot and export them as Prometheus metrics.
It extracts the metrics that are exposed by
Dovecot's stats module by
connecting to UNIX socket /var/run/dovecot/stats and serves them as
Prometheus metrics over TCP port 9166.
The metrics provided by this exporter look like this:
dovecot_up{scope="user"} 1
dovecot_user_last_update{user="[email protected]"} 1.482243627730987e+09
dovecot_user_mail_cache_hits{user="[email protected]"} 298
dovecot_user_mail_lookup_attr{user="[email protected]"} 4
dovecot_user_mail_lookup_path{user="[email protected]"} 87
dovecot_user_mail_read_bytes{user="[email protected]"} 176544
dovecot_user_mail_read_count{user="[email protected]"} 83
dovecot_user_maj_faults{user="[email protected]"} 0
dovecot_user_min_faults{user="[email protected]"} 156053
dovecot_user_num_cmds{user="[email protected]"} 565
dovecot_user_num_logins{user="[email protected]"} 80
dovecot_user_read_bytes{user="[email protected]"} 2.63032577e+08
dovecot_user_read_count{user="[email protected]"} 73992
dovecot_user_reset_timestamp{user="[email protected]"} 1.482239247e+09
dovecot_user_sys_cpu{user="[email protected]"} 2.236
dovecot_user_user_cpu{user="[email protected]"} 11.944
dovecot_user_vol_cs{user="[email protected]"} 2981
dovecot_user_write_bytes{user="[email protected]"} 961822
dovecot_user_write_count{user="[email protected]"} 4906
The interpretation of these metrics is described on the Dovecot wiki.