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From "Wei Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15910) Improvements in Hive Unit Test by using In-memory Derby DB
Date Tue, 14 Feb 2017 19:21:42 GMT

     [ https://issues.apache.org/jira/browse/HIVE-15910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wei Zheng updated HIVE-15910:
-----------------------------
    Status: Patch Available  (was: Open)

> 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: Wei Zheng
>         Attachments: HIVE-15910.01.patch, HIVE-15910.2.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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