Apache NiFi Registry System Administrator's Guide
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System Properties

The nifi-registry.properties file in the conf directory is the main configuration file for controlling how NiFi Registry runs. This section provides an overview of the properties in this file and includes some notes on how to configure it in a way that will make upgrading easier. After making changes to this file, restart NiFi Registry in order for the changes to take effect.

Values for periods of time and data sizes must include the unit of measure, for example "10 secs" or "10 MB", not simply "10".