You can refer to this article and tune the logback.xml file to delete and rollover based log files based on you space constraints https://community.cloudera.com/t5/Community-Articles/Understanding-how-the-logback-xml-configuration-in-NiFi/ta-p/248662   If you found this response assisted with your issue, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Chandan ... View more