title: InfluxDB node module not inserting data
body: <p>I just started experimenting with influxDB and influxDB node module.</p>
  
  <p>I have the following code, that inserts some random data every second.
  I get no errors but yet no data is added to my time series.</p>
  
  <p>The code is: </p>
  
  <pre class="lang-js prettyprint-override"><code>var influxdb = require('influxdb');
  var sleep = require('sleep');
  var connection = influxdb('172.21.5.67', 8086);
  connection.auth({ name: 'root', password: 'root' });
  
  var db;
  var ISCSIDataSeries;
  
  function random (low, high) {
      return Math.floor(Math.random() * (high - low) + low);
  }
  
  function doInsert(i) {
      if (db == undefined) {
          db = connection.database('test');
          console.log('established the db connection');
      }
  
      if (ISCSIDataSeries == undefined) {
          ISCSIDataSeries = db.series('SCSIData');
          console.log('the series SCSIData is established');
      }
  
      var reads = random(1000, 10000);
      var writes = random(2000, 20000);
      var IOS = random(100000, 1000000);
  
      ISCSIDataSeries.writePoints({
          'columns': ['Volume', 'Reads', 'Writes'],
          'points':  [reads, writes, IOS]
      });
  
      db.save();
  }
  
  var i = 0;
  while (i &lt; 10) {
      sleep.sleep(1);
      doInsert(i);
      i ++;
  }
  
  console.log('so long folks');
  </code></pre>
  
  <p>At the end of the run I see no data entered.
  Any experience with this package?</p>