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From "Stefan Groschupf (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-111) Configuration of Pig
Date Tue, 04 Mar 2008 20:19:41 GMT

     [ https://issues.apache.org/jira/browse/PIG-111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stefan Groschupf updated PIG-111:
---------------------------------

    Attachment: PIG-111_v_7_r633244M.patch

It took me significant more time - almost a 8 hours - to regenerate this patch than to create
it the first time. :( However here it goes against r633244. I would be very happy if I do
not need to do it again. :)
I noticed that something with the encoding of the HDataStorage.java in the repository is wrong.

Each line as two line breaks (was this file edit with a windows text editor or so ?). I wasn't
able to fix that in my patch file, that is why the HDataStorage looks strange in the patch
file. All test run at least on my laptop. 
If  this patch made it into the svn,  I would love to work on getting the test suite running
within less than 5 minutes and not 15 min every time. This is painful.



> Configuration of Pig
> --------------------
>
>                 Key: PIG-111
>                 URL: https://issues.apache.org/jira/browse/PIG-111
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Craig Macdonald
>            Assignee: Stefan Groschupf
>         Attachments: after.png, before.png, config.patch.1502, PIG-111-v04.patch, PIG-111-v05.patch,
PIG-111-v06.patch, PIG-111_v_3_sg.patch, PIG-111_v_7_r633244M.patch, PIG-93-v01.patch, PIG-93-v02.patch
>
>
> This JIRA discusses issues relating to the configuration of Pig.
> Uses cases:
>  
> 1. I want to configure Pig programatically from Java
>  Motivation: pig can be embedded from another Java program, and configuration should
be accessible to be set by the client code
> 2. I want to configure Pig from the command line
> 3. I want to configure Pig from the Pig shell (Grunt)
> 4. I want Pig to remember my configuration for every Pig session
>  Motivation: to save me typing in some configuration stuff every time.
> 5. I want Pig to remember my configuration for this script.
>  Motivation: I must use a common configuration for 50% of my Pig scripts - can I share
this configuration between scripts.
> Current Status: 
>  * Pig uses System properties for some configuration
>  * A configuration properties object in PigContext is not used.
>  * pigrc can contain properties
>  * Configuration properties can not be set from Grunt
> Proposed solutions to use cases:
> 1. Configuration should be set in PigContext, and accessible from client code.
> 2. System properties are copied to PigContext, or can be specified on the command line
(duplication with System properties)
> 3. Allow configuration properties to be set using the "set" command in Grunt
> 4. Pigrc can contain properties. Is this enough, or can other configuration stuff be
set, eg aliases, imports, etc.
> 5. Add an include directive to pig, to allow a shared configuration/Pig script to be
included.
> Connections to Shell scripting: 
>  * The source command in Bash allows another bash script file to be included - this allows
shared variables to be set in one file shared between a set of scripts.
>  * Aliases can be set, according to user preferences, etc.
>  * All this can be done in your .bashrc file
> Issues: 
>  * What happens when you change a property after the property has been read?
>  * Can Grunt read a pigrc containing various statements etc before the PigServer is completely
configured?

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