DB migrator failed with below error, but the sonatype-work/nexus3/db had more than 10GB free space.
The migrator checks the "db" and tmp location (java.io.tmpdir), so if the tmp doesn't have enough space, it would be nice if the error message mentions the location.
Also please update the document with this requirement.
The migrator utility requires three times the disk space as your $data-dir/db directory.
Above should at least mention about the temp location.