Hi Ed, Anyone have a great reason that MySQL is better then Derby? >
Given the negligible affect that metastore performance has on Hive's overall performance, I think manageability is the dominant concern for most people when selecting a metastore datastore. If your organization is already using MySQL/Postgres/etc and has a person maintaining and managing backups for these systems, it is probably better to piggyback on that effort than to further complicate matters with the addition of another critical infrastructure component. Carl
