text: #Round robin log of pings to hosts. Grows, only if hosts are added.
  CREATE TABLE `pinglog` (
    `ping_id` int(11) NOT NULL,
    `ping_time` datetime DEFAULT NULL,
    `host_name` char(64) NOT NULL,
    `ping` enum('T','F') DEFAULT NULL,
    `time1` float(7,3) DEFAULT NULL,
    `time2` float(7,3) DEFAULT NULL,
    `time3` float(7,3) DEFAULT NULL,
    `time4` float(7,3) DEFAULT NULL,
    `time5` float(7,3) DEFAULT NULL,
    KEY `ping_id` (`ping_id`),
    KEY `ping_time` (`ping_time`),
    KEY `host_name` (`host_name`)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
  
  #Ping index is being replaced with a round robin sequence in the sequence table.
  #See mysql_seqence at https://github.com/wikarekare/mysql_sequence
  CREATE TABLE `lastping` (
    `hostname` char(64) NOT NULL DEFAULT '',
    `ping_time` datetime DEFAULT NULL,
    PRIMARY KEY (`hostname`)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
  
  #Might be needed, if not already there.
  CREATE TABLE `sequence` (
    `name` varchar(50) NOT NULL,
    `initial_value` int(10) unsigned NOT NULL DEFAULT '1',
    `current_value` int(10) unsigned NOT NULL DEFAULT '0',
    `step_size` int(10) unsigned NOT NULL DEFAULT '1',
    `max_value` int(10) unsigned NOT NULL DEFAULT '4294967295',
    `cycle` tinyint(4) NOT NULL DEFAULT '0',
    PRIMARY KEY (`name`)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin;
  