Hi Rajat, Here’s a good reference for Hive transactions: https://cwiki.apache.org/confluence/display/Hive/Hive+Transactions
For the unit test issue that you mentioned, we already noticed that. Thanks for pointing it out! Thanks, Wei On 7/29/16, 01:30, "Rajat Khandelwal" <rajatgupt...@gmail.com> wrote: Can somebody please explain or point me to what are db transaction in hive. This is related to https://issues.apache.org/jira/browse/HIVE-14357. I raised this jira after observing a test failures. Would like to gain some understanding regarding what this test failure means, and whether or not the failure needs to be investigated. Thanks