title: influxdb some data not selected
body: <p>I process data that arrives on an amazon server, put the data in an influxDB (0.9.5) and visualise on Grafana. Now suddenly data from two measurements is not selected any-more before a certain timestamp (11 July), e.g. </p>
  
  <p>SELECT * FROM cable WHERE time &lt; '2016-07-11 00:00:00'</p>
  
  <p>would return no results.
  However, the data is still there: I re-precessed one data-file from 15 May 2016, and now the data from 9 May till 15 May shows again.  </p>
  
  <p>This is quite a strange behaviour, would anyone have a clue what is going on here? </p>
  
  <p>Thanks,
  Bart</p>