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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-10511) Unify Hive CLI and Beeline
Date Tue, 28 Apr 2015 00:30:06 GMT
Xuefu Zhang created HIVE-10511:
----------------------------------

             Summary: Unify Hive CLI and Beeline
                 Key: HIVE-10511
                 URL: https://issues.apache.org/jira/browse/HIVE-10511
             Project: Hive
          Issue Type: Bug
          Components: CLI
    Affects Versions: 0.10.0
            Reporter: Xuefu Zhang


Hive CLI is a legacy tool which had two main use cases: 
1. a thick client for SQL on hadoop
2. a command line tool for HiveServer1.

HiveServer1 is already deprecated and removed from Hive code base, so  use case #2 is out
of the question. For #1, Beeline provides or is supposed to provides equal functionality,
yet is implemented differently from Hive CLI.

As it has been a while that Hive community has been recommending Beeline + HS2 configuration,
ideally we should deprecating Hive CLI. Because of wide use of Hive CLI, we instead propose
replacing Hive CLI's implementation with Beeline plus embedded HS2 so that Hive community
only needs to maintain a single code path. In this way, Hive CLI is just an alias to Beeline
at either shell script level or at high code level. The goal is that  no changes or minimum
changes are expected from existing user scrip using Hive CLI.

This is an Umbrella JIRA covering all tasks related to this initiative. Over the last year
or two, Beeline has been improved significantly to match what Hive CLI offers. Still, there
may still be some gaps or deficiency to be discovered and fixed. In the meantime, we also
want to make sure the enough tests are included and performance impact is identified and addressed.



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