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https://issues.apache.org/jira/browse/HIVE-26882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17676999#comment-17676999
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Peter Vary edited comment on HIVE-26882 at 1/15/23 9:46 AM:
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Thanks for the review [~ayushtkn]!
Merged all of them - as in all cases the code were able to compile and the new
tests were passed. Had to merge the 4 commits (backported to have the testing
infra at hand) as the github settings did not allow for the rebase merging
strategy.
Is there a planned timeline for a release from any of these branches?
Thanks,
Petr
was (Author: pvary):
Merged all of them.
Thanks for the review [~ayushtkn]!
Is there a planned timeline for a release from any of these branches?
Thanks,
Petr
> Allow transactional check of Table parameter before altering the Table
> ----------------------------------------------------------------------
>
> Key: HIVE-26882
> URL: https://issues.apache.org/jira/browse/HIVE-26882
> Project: Hive
> Issue Type: Improvement
> Components: Standalone Metastore
> Reporter: Peter Vary
> Assignee: Peter Vary
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> We should add the possibility to transactionally check if a Table parameter
> is changed before altering the table in the HMS.
> This would provide an alternative, less error-prone and faster way to commit
> an Iceberg table, as the Iceberg table currently needs to:
> - Create an exclusive lock
> - Get the table metadata to check if the current snapshot is not changed
> - Update the table metadata
> - Release the lock
> After the change these 4 HMS calls could be substituted with a single alter
> table call.
> Also we could avoid cases where the locks are left hanging by failed processes
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