docs: function( key, info, callback ){
      this.log.debug('Updating info %s %s', key, info.status);
      this._query("update " + this.infoTable + " set info = '" + JSON.stringify(info) + "' where id = '"+key+":info'", function(err, result){
        if ( err || !result ){
          callback('Key Not Found ' + key, null);
        } else {
          callback(null, true);
        }
      });
    }