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https://issues.apache.org/jira/browse/HIVE-10241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Koifman resolved HIVE-10241.
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Resolution: Cannot Reproduce
I can clearly see the right locks now....
> ACID: drop table doesn't acquire any locks
> ------------------------------------------
>
> Key: HIVE-10241
> URL: https://issues.apache.org/jira/browse/HIVE-10241
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 1.0.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
>
> with Hive configured to use DbTxnManager, in DbTxnManager.acquireLocks() both
> plan.getInputs() and plan.getOutputs() are empty when "drop table foo" is
> executed and thus no locks are acquired. We should be acquiring X locks to
> make sure any readers of this table don't get data wiped out while read is in
> progress.
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