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From "Sankar Hariappan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-15910) Improvements in Hive Unit Test by using In-memory Derby DB
Date Tue, 14 Feb 2017 10:28:41 GMT
Sankar Hariappan created HIVE-15910:
---------------------------------------

             Summary: Improvements in Hive Unit Test by using In-memory Derby DB
                 Key: HIVE-15910
                 URL: https://issues.apache.org/jira/browse/HIVE-15910
             Project: Hive
          Issue Type: Test
          Components: Tests
            Reporter: Sankar Hariappan
            Assignee: Sankar Hariappan


Hive UT currently uses Derby DB with storage on disk which have some practical problems.
1. The run-time of Hive unit tests are high as need to operate on the disk quite often.
2. It can cause conflict if multiple test cases operates on the same table name (such as table
being created already exist).

To solve these problems, we shall use an in-memory storage option of Derby DB which can be
even persisted if the test case demands that.
https://db.apache.org/derby/docs/10.8/devguide/cdevdvlpinmemdb.html



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