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Eugene Koifman commented on HIVE-17089: --------------------------------------- patch 16 - address RB comments > make acid 2.0 the default > ------------------------- > > Key: HIVE-17089 > URL: https://issues.apache.org/jira/browse/HIVE-17089 > Project: Hive > Issue Type: New Feature > Components: Transactions > Reporter: Eugene Koifman > Assignee: Eugene Koifman > Attachments: HIVE-17089.01.patch, HIVE-17089.03.patch, > HIVE-17089.05.patch, HIVE-17089.06.patch, HIVE-17089.07.patch, > HIVE-17089.10.patch, HIVE-17089.10.patch, HIVE-17089.11.patch, > HIVE-17089.12.patch, HIVE-17089.13.patch, HIVE-17089.14.patch, > HIVE-17089.15.patch, HIVE-17089.16.patch > > > acid 2.0 is introduced in HIVE-14035. It replaces Update events with a > combination of Delete + Insert events. This now makes U=D+I the default (and > only) supported acid table type in Hive 3.0. > The expectation for upgrade is that Major compaction has to be run on all > acid tables in the existing Hive cluster and that no new writes to these > table take place since the start of compaction (Need to add a mechanism to > put a table in read-only mode - this way it can still be read while it's > being compacted). Then upgrade to Hive 3.0 can take place. -- This message was sent by Atlassian JIRA (v6.4.14#64029)