title: How to force Logstash to reparse a file?
body: <p>I installed Logstash to parse apache files. It took me quite q while to get the settings right and I always tried on real logs. I noticed (as the documentation says) that logstash "remembers" where it was in a file. Now my setings are Ok and I would like Logstash to "forget". This seems harder than I though. I already did the following:</p>
  
  <ul>
  <li><p>used: <code>start_position =&gt; "beginning"</code></p></li>
  <li><p>deleted the complete "data" folder from elastissearch (and stopped it first)</p></li>
  <li><p>looked at which files where opened by logstash with <code>lsof -p PID</code> and deleted everything which was promising (in my case <code>/tmp/jffi*.tmp</code>)</p></li>
  </ul>
  
  <p>Still Logstash does not forget and parse only "fresh" files in the folder where the logs are</p>
  
  <p>Any ideas?</p>