[jira] [Work logged] (HIVE-24348) Beeline: Isolating dependencies and execution with java

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-24348?focusedWorklogId=534359&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-534359 ]

ASF GitHub Bot logged work on HIVE-24348:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 11/Jan/21 17:29
            Start Date: 11/Jan/21 17:29
    Worklog Time Spent: 10m 
      Work Description: nrg4878 opened a new pull request #1852:
URL: https://github.com/apache/hive/pull/1852


               1) Changes to use java to execute beeline if HADOOP_HOME is not set
               2) POM changes to build an uber beeline-with-dependencies jar
               3) Eliminates some of the not required jars in classpath for beeline.
   
   
   ### What changes were proposed in this pull request?
               1) Changes to use java to execute beeline if HADOOP_HOME is not set
               2) POM changes to build an uber beeline-with-dependencies jar
               3) Eliminates some of the not required jars in classpath for beeline.
   
   
   ### Why are the changes needed?
   Currently beeline has a bunch of dependencies on other jars, some required and some unnecessary. beeline script also uses HADOOP_HOME to execute beeline class. This adds some other jars to the classpath that makes it hard to run beeline on an edge node. This fix is a first pass at building a standalone jar with all needed dependencies and also make it work using "java" when HADOOP_HOME is not set.
   
   ### Does this PR introduce _any_ user-facing change?
   NO
   
   ### How was this patch tested?
   Manually.


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 534359)
    Remaining Estimate: 0h
            Time Spent: 10m

> Beeline: Isolating dependencies and execution with java
> -------------------------------------------------------
>
>                 Key: HIVE-24348
>                 URL: https://issues.apache.org/jira/browse/HIVE-24348
>             Project: Hive
>          Issue Type: Improvement
>          Components: Beeline
>    Affects Versions: 3.1.0
>            Reporter: Naveen Gangam
>            Assignee: Naveen Gangam
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, beeline code, binaries and executables are somewhat tightly coupled with the hive product. To be able to execute beeline from a node with just JRE installed and some jars in classpath is impossible.
> * beeline.sh/hive scripts rely on HADOOP_HOME to be set which are designed to use "hadoop" executable to run beeline.
> * Ideally, just the hive-beeline.jar and hive-jdbc-standalone jars should be enough but sadly they arent. The latter jar adds more problems than it solves because all the classfiles are shaded some dependencies cannot be resolved.
> * Beeline has many other dependencies like hive-exec, hive-common. hadoop-common, supercsv, jline, commons-cli, commons-io, commons-logging etc. While it may not be possible to eliminate some of these, we should atleast have a self-contains jar that contains all these to be able to make it work.
> * the underlying script used to run beeline should use JAVA as an alternate means to execute if HADOOP_HOME is not set



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