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How to Use the Same Encryption across Multiple IBM Manta Data Lineage Instances

Manta Data Lineage encryption works in such a way that the password used for the encryption is generated while Manta Data Lineage is being installed. This makes it impossible to use encrypted passwords from one instance of Manta Data Lineage in other instances of Manta Data Lineage. Although this is typically desirable, there are use-cases where the ability to use an encrypted password for multiple instances would be helpful.

This can be achieved by setting the environment variable MANTA_MASTERPASSWORD to the same randomly generated password on all the hosts with Manta Data Lineage instances that the encrypted password should be re-used for.

The environment variable has to be set before Manta Data Lineage is installed on the host, and the value cannot be changed or unset until Manta Data Lineage is uninstalled.