[jira] [Updated] (HBASE-8438) Extend bin/hbase to print a "minimal classpath" for used by other tools

["Nick Dimiduk (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-8438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nick Dimiduk updated HBASE-8438:
--------------------------------

    Attachment: 0001-HBASE-8438-Extend-bin-hbase-to-print-a-minimal-class.patch

Simplified implementation. Since we already manually maintain a list of mapreduce dependencies over in TableMapReduceUtils, why not use it? This version builds on addDependencyJars and exposes it on the command line via a simple utility.

> Extend bin/hbase to print a "minimal classpath" for used by other tools
> -----------------------------------------------------------------------
>
>                 Key: HBASE-8438
>                 URL: https://issues.apache.org/jira/browse/HBASE-8438
>             Project: HBase
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 0.94.6.1, 0.95.0
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>         Attachments: 0001-HBASE-8438-Extend-bin-hbase-to-print-a-minimal-class.patch, 0001-HBASE-8438-Extend-bin-hbase-to-print-a-minimal-class.patch, 0001-HBASE-8438-Extend-bin-hbase-to-print-a-minimal-class.patch, 0001-HBASE-8438-Extend-bin-hbase-to-print-a-minimal-class.patch
>
>
> For tools like pig and hive, blindly appending the full output of `bin/hbase classpath` to their own CLASSPATH is excessive. They already build CLASSPATH entries for hadoop. All they need from us is the delta entries, the dependencies we require w/o hadoop and all of it's transitive deps. This is also a kindness for Windows, where there's a shorter limit on the length of commandline arguments.
> See also HIVE-2055 for additional discussion.



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