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https://issues.apache.org/jira/browse/HIVE-18748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sankar Hariappan updated HIVE-18748:
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Description:
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.
was:
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, we propose to disable rename tables on ACID
tables until a fix is figured out.
> 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: Sankar Hariappan
> Priority: Major
> Labels: ACID, DDL
> Fix For: 3.0.0
>
>
> 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.
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