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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-574) run command for grunt
Date Wed, 11 Feb 2009 09:52:59 GMT

     [ https://issues.apache.org/jira/browse/PIG-574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Gunther Hagleitner updated PIG-574:

    Attachment: run_command_params.patch

Thanks for reviewing the patch!

I tried to address the 3 issues you pointed out:

1) You can now specify parameters and param files in both the exec and run command

grunt> run myscript.pig using param_file myparams.ppf
grunt> run myscript.pig using param LIMIT=5 param_file myparams.ppf

The syntax mimics what you can do on the command line when executing a script without the

2) The script lines are now added to the command history in interactive mode

3) The double grunt... That's actually harder to fix than it thought, but I added a newline,
so it won't say:

grunt> grunt>



Let's just tell everyone that that's because they have extra newlines in their scripts. Maybe
they won't find out. ;-)

> run command for grunt
> ---------------------
>                 Key: PIG-574
>                 URL: https://issues.apache.org/jira/browse/PIG-574
>             Project: Pig
>          Issue Type: New Feature
>          Components: grunt
>            Reporter: David Ciemiewicz
>            Priority: Minor
>         Attachments: run_command.patch, run_command_params.patch
> This is a request for a "run file" command in grunt which will read a script from the
local file system and execute the script interactively while in the grunt shell.
> One of the things that slows down iterative development of large, complicated Pig scripts
that must operate on hadoop fs data is that the edit, run, debug cycle is slow because I must
wait to allocate a Hadoop-on-Demand (hod) cluster for each iteration.  I would prefer not
to preallocate a cluster of nodes (though I could).
> Instead, I'd like to have one window open and edit my Pig script using vim or emacs,
write it, and then type "run myscript.pig" at the grunt shell until I get things right.
> I'm used to doing similar things with Oracle, MySQL, and R. 

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