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Connections add exception for Hive and Impala #1720

@nj1973

Description

@nj1973

Describe the bug
We document additional options for Hive and Impala connections:

https://github.com/GoogleCloudPlatform/professional-services-data-validator/blob/develop/docs/connections.md#impala

But when adding tests for issue #1713 we saw exceptions when trying to use --timeout, with both Hive and Impala backends.

$ data-validation connections add -c hive-test Impala --host $HIVE_HOST --port 10000  --database default --auth-mechanism NOSASL --timeout 30
...
ata_validation.exceptions.DataClientConnectionFailure: Connection Type "Impala" could not connect: can't multiply sequence by non-int of type 'float'

I didn't test out all additional options, we should check others too.

Search for "issue-1720" in tests when working on this issue.

What version of DVT are you using?
8.5.2

What type of connections are you using for source and target?
Hive, Impala

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    type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.

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