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From "Zoltan Haindrich (JIRA)" <>
Subject [jira] [Updated] (HIVE-15053) Beeline#addlocaldriver - reduce classpath scanning
Date Wed, 26 Oct 2016 20:13:58 GMT


Zoltan Haindrich updated HIVE-15053:
    Attachment: HIVE-15053.1.patch

patch#1 depends on the "fix" of the beelineargparser test

removed {{ClassNameCompleter}} and the beeline code which used it; replaced it with {{ServiceLoader}}

DummyDriver test is now 'auto-loadable' - because of this HiveTestUtils is now a bit more

> Beeline#addlocaldriver - reduce classpath scanning
> --------------------------------------------------
>                 Key: HIVE-15053
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>         Attachments: HIVE-15053.1.patch
> There is a classpath scanning machinery inside {{ClassNameCompleter}}.
> I think the sole purpose of these things is to scan for jdbc drivers...(but not entirely
> if it is indeed looking for jdbc drivers..then possibly this can be removed without any
issues because modern jdbc drivers usually advertise their driver as a service-loadable class
for {{java.sql.Driver}}
> Auto-Loading of JDBC Driver

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