title: Apache Kafka persist all data
body: <p>When using <a href="https://stackoverflow.com/q/17708489/1327651">Kafka as an event store</a>, how is it possible to configure the logs never to lose data (v0.10.0.0) ?</p>
  
  <p>I have seen the (old?) <a href="http://kafka.apache.org/07/configuration.html" rel="noreferrer"><code>log.retention.hours</code></a>, and I have been considering playing with <a href="http://kafka.apache.org/documentation.html#compaction" rel="noreferrer">compaction keys</a>, but is there simply an option for kafka never to delete messages ?</p>
  
  <p>Or is the best option to put a ridiculously high value for the retention period ?</p>