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Sankar Hariappan edited comment on HIVE-18748 at 5/15/18 2:31 AM: ------------------------------------------------------------------ [~ekoifman], Posted few more comments. Please have a look. was (Author: sankarh): [~ekoifman], few comments comments. Please have a look. > Rename table impacts the ACID behaviour as table names are not updated in > meta-tables. > -------------------------------------------------------------------------------------- > > Key: HIVE-18748 > URL: https://issues.apache.org/jira/browse/HIVE-18748 > Project: Hive > Issue Type: Sub-task > Components: HiveServer2, Transactions > Affects Versions: 3.0.0 > Reporter: Sankar Hariappan > Assignee: Eugene Koifman > Priority: Critical > Labels: ACID, DDL > Attachments: HIVE-18748.02.patch, HIVE-18748.03.patch > > > ACID implementation uses metatables such as TXN_COMPONENTS, > COMPLETED_TXN_COMPONENTS, COMPACTION_QUEUE, COMPLETED_COMPCTION_QUEUE etc to > manage ACID operations. > Per table write ID implementation (HIVE-18192) introduces couple of > metatables such as NEXT_WRITE_ID and TXN_TO_WRITE_ID to manage write ids > allocated per table. > Now, when we rename any tables, it is necessary to update the corresponding > table names in these metatables as well. Otherwise, ACID table operations > won't work properly. > Since, this change is significant and have other side-effects, we propose to > disable rename tables on ACID tables until a fix is figured out. -- This message was sent by Atlassian JIRA (v7.6.3#76005)