Hello,
we did an upgrade of our processes on a new cluster HDP 2.5 (more or less 1.2.1) --> HDP 3.1 (Hive 3) and a lot of things were problematic But mainly you need to make sure you take care of the int -> String because the new version of hive expects the right data type So I would not expect a upgrade without problem, but YMMV. my 2c, Julien Julien Tane Big Data Engineer [Tel.] +49 721 98993-393 [Fax] +49 721 98993-66 [E-Mail] j...@solute.de<mailto:j...@solute.de> solute GmbH Zeppelinstra?e 15 76185 Karlsruhe Germany [Logo Solute] [SoluteDay]<https://www.solute.de/ger/soluteday/> Marken der solute GmbH | brands of solute GmbH [Marken] Gesch?ftsf?hrer | Managing Director: Dr. Thilo Gans, Bernd Vermaaten Webseite | www.solute.de <http://www.solute.de/> Sitz | Registered Office: Karlsruhe Registergericht | Register Court: Amtsgericht Mannheim Registernummer | Register No.: HRB 110579 USt-ID | VAT ID: DE234663798 Informationen zum Datenschutz | Information about privacy policy https://www.solute.de/ger/datenschutz/grundsaetze-der-datenverarbeitung.php ________________________________ Von: Battula, Brahma Reddy <bbatt...@visa.com> Gesendet: Donnerstag, 10. Juni 2021 09:43:03 An: d...@hive.apache.org; user@hive.apache.org Betreff: Any best practices for hive upgrade from 1.2.1 to 3.1.2 Hi All, We are planning to upgrade the hive from 1.2.1 to 3.1.2, can we get any best practices ..? Is any chance to upgrade without down time (if we disable new features like managed tables)..? Thanks.
