<source>
  type forward
</source>

<match access_log.**>
  type online_user
  flush_interval 10s

  #redis configuration
  #host localhost
  #port 6379
  #db_index 0
  #redis_try 3

  #inactive timeout, default 30 minutes
  #session_timeout 1800

  # prefix of the keys stored into Redis
  #redis_key_prefix counter:online_user:

  # how do you define unique user ?
  # the default is to find 'uid' field in record

  # for support both members and non-members, try:
  #user_identify uid|ip

  #emit online user count event periodically or not
  #silent false

  #the tag prefix for emitted event
  #tag online_user

  #besides counting the overall online users
  #also wanna count online users for each segment ?
  #if so, use the segment directive

  #segmented by tag
  #segment tag

  #segmented by a specified field
  #segment service

  #segmented by regexp-captured string
  #the format is: capture __FIELD__ __REGEXP__
  #segment capture name /^\w+:(\w+):/

</match>

<match **>
  type stdout
</match>