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https://issues.apache.org/jira/browse/HIVE-15910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15865655#comment-15865655
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Sankar Hariappan commented on HIVE-15910:
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[~thejas] [~wzheng]
Can you please review the patch and help to commit?
> 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
> Attachments: HIVE-15910.01.patch
>
>
> 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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