title: Cleanup Policy:Compact/Delete and log.retention
body: <p>I have a question about Kafka Topic cleanup policies and their interaction of log.retention....</p>
  
  <p>For example, if I set cleanup.policy to compact, compaction will only start after the retention time of the topic or retention time has no effect for compaction?</p>
  
  <p>Second part of the question, if I use compact,delete together, and I have log.retention for lets say 1 day, topic compacted all the time but content of the topic will be deleted after one day? or compaction and delete realised after one day?</p>
  
  <p>Thx for answers...</p>