Bimal, The sensitive keys property specifies a raw value from which the encryption key for sensitive component properties is derived. This is used to protect things like a database password, AWS credentials, etc. that you configure in your flows when they are persisted to the file system. You should populate this property with a long and unique value in your nifi.properties file.
This is documented in the Admin Guide [1][2]. If you have an existing flow with sensitive properties already encrypted using the default empty key, you can migrate them using the NiFi Encrypt Config Toolkit [3]. [1] https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#how-to-install-and-start-nifi <https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#how-to-install-and-start-nifi> [2] https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#security_properties <https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#security_properties> [3] https://nifi.apache.org/docs/nifi-docs/html/toolkit-guide.html#encrypt_config_tool <https://nifi.apache.org/docs/nifi-docs/html/toolkit-guide.html#encrypt_config_tool> Andy LoPresto [email protected] [email protected] PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4 BACE 3C6E F65B 2F7D EF69 > On Apr 4, 2019, at 9:43 AM, Bimal Mehta <[email protected]> wrote: > > I recently upgraded to NiFi 1.9.0. > However on starting the NiFi service I get the following error > > A blank sensitive properties key was provided > Specify a unique key in nifi.properties for nifi.sensitive.props.key > > I am not sure about this property. What do I need to do? > > Thanks > Bimal Mehta
