[jira] [Created] (HIVE-18377) avoid explicitly setting HIVE_SUPPORT_CONCURRENCY in JUnit tests

["Eugene Koifman (JIRA)" <ji...@apache.org>]

Eugene Koifman created HIVE-18377:
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             Summary: avoid explicitly setting HIVE_SUPPORT_CONCURRENCY in JUnit tests
                 Key: HIVE-18377
                 URL: https://issues.apache.org/jira/browse/HIVE-18377
             Project: Hive
          Issue Type: Sub-task
          Components: Test, Transactions
            Reporter: Eugene Koifman
            Assignee: Eugene Koifman


many UTs (e.g. TestHCatMultiOutputFormat, BeelineWithHS2ConnectionFileTestBase, TestOperationLoggingAPIWithMr, HCatBaseTest and many others)
explicitly set {{hiveConf.set(HiveConf.ConfVars.HIVE_SUPPORT_CONCURRENCY.varname, "false");}}
It would be better if they picked up the settings from data/conf/hive-site.xml.
It adds consistency and makes it possible to run all tests with known config (at least approach this).

The outline of the process is:
1. build copies {{\*-site.xml files from data/conf/\*\*/\*-site.xml}} to <module-name>target/testconf/
2. HiveConf picks up target/testconf/hive-site.xml
3. Various forms of *CliDriver may explicitly specify (e.g. MiniLlapLocalCliConfig) which hive-site.xml to use
 

The first step is to see how many explicit settings of HIVE_SUPPORT_CONCURRENCY can be removed w/o breaking the tests.



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