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Posted to dev@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2015/04/07 20:55:12 UTC

[jira] [Created] (HIVE-10241) ACID: drop table doesn't acquire any locks

Eugene Koifman created HIVE-10241:
-------------------------------------

             Summary: 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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