[jira] [Updated] (PIG-2239) Pig should use "bin/hadoop jar pig-withouthadoop.jar" in bin/pig instead of forming java command itself

["Daniel Dai (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-2239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Dai updated PIG-2239:
----------------------------

    Attachment: PIG-2239-0.patch

Attach initial patch PIG-2239-0.patch. Some notes for the patch:
1. There is no change in java code, we still produce pig.jar, pig-withouthadoop.jar. However, pig-withouthadoop.jar is more lightweight (no hadoop dependencies, only Pig dependencies)

2. If HADOOP_HOME is defined, bin/pig will invoke hadoop runJar to run pig-withouthadoop.jar, org.apache.pig.Main

3. If HADOOP_HOME is not defined, fall back to old way--link to bundled hadoop 20.2 libraries.

4. I didn't see any conflict options between Pig and Hadoop command line. The only change is now pig command line support hadoop generic options which is not supported before.

> Pig should use "bin/hadoop jar pig-withouthadoop.jar" in bin/pig instead of forming java command itself  
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-2239
>                 URL: https://issues.apache.org/jira/browse/PIG-2239
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Ashutosh Chauhan
>         Attachments: PIG-2239-0.patch
>
>
> This will obliterate tons of classpath issues and hadoop versions, paths problem that has fraught bin/pig and Pig in general.

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