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https://issues.apache.org/jira/browse/PIG-3441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044343#comment-14044343
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Daniel Dai commented on PIG-3441:
---------------------------------

I am not absolutely sure but if we are using in Tez, it is probably Ok. We can 
follow what Mona suggested to change MapReduceLauncher.launchPig. We don't need 
to use a flag, but ConfigurationUtil.toConfiguration still shall by default not 
load defaults.

> Allow Pig to use default resources from Configuration objects
> -------------------------------------------------------------
>
>                 Key: PIG-3441
>                 URL: https://issues.apache.org/jira/browse/PIG-3441
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.11.1
>            Reporter: Bhooshan Mogal
>         Attachments: PIG-3441.patch, PIG-3441_1.patch
>
>
> Pig currently ignores parameters from configuration files added statically to 
> Configuration objects as Configuration.addDefaultResource(filename.xml).
> Consider the following scenario -
> In a hadoop FileSystem driver for a non-HDFS filesystem you load properties 
> specific to that FileSystem in a static initializer block in the class that 
> extends org.apache.hadoop.fs.Filesystem for your FileSystem like below - 
> {code}
> class MyFileSystem extends FileSystem {
>         static {
>               Configuration.addDefaultResource("myfs-default.xml");
>               Configuration.addDefaultResource("myfs-site.xml");
>       }
> }
> {code}
> Interfaces like the Hadoop CLI, Hive, Hadoop M/R can find configuration 
> parameters defined in these configuration files as long as they are on the 
> classpath.
> However, Pig cannot find parameters from these files, because it ignores 
> configuration files added statically.
> Pig should allow users to specify if they would like pig to read parameters 
> from resources loaded statically.



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