[dnsdist] Query counters

[Miguel Miranda]

Hello to all, i am reading the configuration and i am wondering what kind
of per-records statistics will show in metronome when query counteris
enabled?

something like this?

Dst Domain                    qps
www.google.com           1000
www.facebook.com       6000

Src Ip      qps
8.8.8.8    1000
4.4.4.4     4000

etc

By the way i upgraded dnsdist to 1.0.0 using the repos and i got this error
when i configure query counters,:

Fatal error: [string "chunk"]:33: attempt to call global
'setQueryCountFilter' (a nil value)

 i copied verbatin the README example:

function filter(dq)
  qname = dq.qname:toString()

  -- don't count PTRs at all
  if(qname:match('in%-addr.arpa$')) then
    return false, ""
  end

  -- count these queries as if they were queried without leading www.
  if(qname:match('^www.')) then
    qname = qname:gsub('^www.', '')
  end

  -- count queries by default
  return true, qname
end

setQueryCountFilter(filter)
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