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https://issues.apache.org/jira/browse/PIG-3441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134304#comment-14134304
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Bhooshan Mogal commented on PIG-3441:
-------------------------------------
Sorry for the delay. I debugged this issue further last week. I have created a
project at https://github.com/bdmogal/pig-3441 to demonstrate this issue. I
have a dummy {{MyFileSystem.java}} class that adds a resource {{myfs-site.xml}}
to default resources and a pig script {{src/main/bin/myfs.pig}} that invokes
this class.
We tested this last week and found that properties from {{myfs-site.xml}} are
not found by pig with or without applying this patch on trunk.
If you then add {{myfs-site.xml}} using {{Configuration.addResource}} like
[here|https://github.com/bdmogal/pig-3441/blob/master/src/main/java/pig/pig3441/MyFileSystem.java#L34],
the properties become available.
[~daijy] could you please try this and let me know?
> 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
> Assignee: Daniel Dai
> Attachments: PIG-3441-2.patch, PIG-3441-3.patch, 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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