Are there any examples of the utility of doveadm stats?
   
   
    
   
   
    in the man page:
   
   
    
     dump accepts following types: command, session, user, domain, ip and
    
    
     global.
    
    
     
    
    
     Filter can be
    
    
     
    
    
     user=<wildcard>
    
    
     Match given user.
    
   
   
    
   
   
    I've tried the following commands after looking at the (sparse and example-less) man page.
   
   
    
   
   
    # doveadm stats dump
   
   
    metric_name field count sum min max avg median stddev %95
   
   
    # doveadm stats dump user
   
   
    Error: Extraneous arguments found: user
   
   
    # doveadm stats dump user user="*"
   
   
    Error: Extraneous arguments found: user user=*
   
   
    # doveadm stats dump global
   
   
    Error: Extraneous arguments found: global
   
   
    # doveadm stats dump global user="*"
   
   
    Error: Extraneous arguments found: global user=*
   
   
    #
   
   
    
   
   
    I assume there is more to the configuration for stats than merely making it not report an error. So, the first question is what sorts of stats would be most likely to be useful and what do I do in the configuration to get those?
   
   
    
   
   
    Second question is why is this required to be enabled if, by default, it has no functionality?
   
   
    
   
   
    
   
   
    --
   
   
    Beware of geeks bearing .GIF's
   
  
  
   Sorry about this. That manpage was supposed to be renamed as doveadm old-stats. See https://wiki.dovecot.org/Statistics on how to use the new ones.