title: influx: all old data got deleted after applying retention policy
body: <p>I had data from last 7 days in influx. I applied retention policy and suddenly all data got deleted. i have single instance of influx running.</p>
  
  <pre><code>CREATE RETENTION POLICY stats_30_day ON server_stats DURATION 30d REPLICATION 1
  
  ALTER RETENTION POLICY stats_30_day ON server_stats DURATION 30d REPLICATION 1 default
  </code></pre>
  
  <p>Any idea what went wrong ?</p>