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From "Zoltan Haindrich (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15053) Beeline#addlocaldriver - reduce classpath scanning
Date Fri, 15 Sep 2017 07:53:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-15053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zoltan Haindrich updated HIVE-15053:
------------------------------------
    Attachment: HIVE-15053.3.patch

#3) rebased to current master
[~pvary] could you please take a look?

> Beeline#addlocaldriver - reduce classpath scanning
> --------------------------------------------------
>
>                 Key: HIVE-15053
>                 URL: https://issues.apache.org/jira/browse/HIVE-15053
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>         Attachments: HIVE-15053.1.patch, HIVE-15053.1.patch, HIVE-15053.1.patch, HIVE-15053.2.patch,
HIVE-15053.3.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
sure)
> 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}}
> http://www.onjava.com/2006/08/02/jjdbc-4-enhancements-in-java-se-6.html
> Auto-Loading of JDBC Driver



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