From reviews-return-890812-archive-asf-public=cust-asf.ponee.io@spark.apache.org Wed Aug 14 06:20:51 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 112241802C7 for ; Wed, 14 Aug 2019 08:20:50 +0200 (CEST) Received: (qmail 84346 invoked by uid 500); 14 Aug 2019 06:20:50 -0000 Mailing-List: contact reviews-help@spark.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list reviews@spark.apache.org Received: (qmail 84335 invoked by uid 99); 14 Aug 2019 06:20:50 -0000 Received: from ec2-52-202-80-70.compute-1.amazonaws.com (HELO gitbox.apache.org) (52.202.80.70) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 14 Aug 2019 06:20:50 +0000 From: GitBox To: reviews@spark.apache.org Subject: [GitHub] [spark] wangyum commented on a change in pull request #25431: [SPARK-28711][DOCS] Update migration guide to add note about Hive upgrade Message-ID: <156576365044.26718.4387981766813840288.gitbox@gitbox.apache.org> Date: Wed, 14 Aug 2019 06:20:50 -0000 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit wangyum commented on a change in pull request #25431: [SPARK-28711][DOCS] Update migration guide to add note about Hive upgrade URL: https://github.com/apache/spark/pull/25431#discussion_r313718805 ########## File path: docs/sql-migration-guide-upgrade.md ########## @@ -23,6 +23,9 @@ license: | {:toc} ## Upgrading From Spark SQL 2.4 to 3.0 + - Since Spark 3.0, hive is upgraded to 2.3.x, so it is required to update the Hive Review comment: There are two things here: 1. If you want to improve the performance of the Hive Metastore Server. The correct way is to upgrade your Hive Metastore Server to latest version. `SCHEMA_VERSION` should be updated by [Hive itself](https://github.com/apache/hive/blob/c57a59611fa168ee38c6ee0ee60b1d6c4994f9f8/metastore/scripts/upgrade/mysql/upgrade-1.2.0-to-1.3.0.mysql.sql). 2. Upgrade built-in Hive to 2.3.x still can get benefits if you Hive Metastore Server is 1.2.x, such as [SPARK-12014](https://issues.apache.org/jira/browse/SPARK-12014), [SPARK-27500](https://issues.apache.org/jira/browse/SPARK-27500) and [SPARK-26321](https://issues.apache.org/jira/browse/SPARK-26321). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: users@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org For additional commands, e-mail: reviews-help@spark.apache.org