Hi devon,
Yes, you can connect knowage community version to Hive database. For managing metadata you can use only following DBMSs: Oracle, MySql, PostgreSQL and MariaDB. You can see more on this link: https://knowage-suite.readthedocs.io/en/7.2/installation-guide/requirements.html#database-schema-for-metadata. And in order to connect to your data in Hive database you can follow these steps: https://knowage-suite.readthedocs.io/en/7.2/administrator-guide/configure-data-sources.html.
Best regards,
Andrijana