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https://issues.apache.org/jira/browse/HIVE-16688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Koifman reassigned HIVE-16688:
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> Make sure Alter Table to set transaction=true acquires X lock
> -------------------------------------------------------------
>
> Key: HIVE-16688
> URL: https://issues.apache.org/jira/browse/HIVE-16688
> Project: Hive
> Issue Type: Sub-task
> Components: Transactions
> Affects Versions: 1.3.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
>
> suppose we have non-acid table with some data
> An insert op starts (long running)
> An alter table runs to add (transactional=true)
> An update is run which will read the list of "original" files and assign IDs
> on the fly which are written to a delta file.
> The long running insert completes.
> Another update is run which now sees a different set of "original" files and
> will (most likely) assign different IDs.
> Need to make sure to mutex this
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