[jira] [Commented] (PIG-2101) Registering a Python function in a directory other than the current working directory fails

["Daniel Eklund (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-2101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13043982#comment-13043982 ] 

Daniel Eklund commented on PIG-2101:
------------------------------------

I can actually still get it to work with a relative directory not involving '..'
For instance
  Register 'test/simple.py' as myNamespace;

where test is a subdir in the working directory.  But any path with '..' fails.
Would also be nice to add something in the documentation about NOT using absolute paths.

> Registering a Python function in a directory other than the current working directory fails
> -------------------------------------------------------------------------------------------
>
>                 Key: PIG-2101
>                 URL: https://issues.apache.org/jira/browse/PIG-2101
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.8.1
>            Reporter: Alan Gates
>
> In MapReduce mode, if the register command references a directory other than the current one, executing the Python UDF on the backend fails with:   Deserialization error: could not instantiate 'org.apache.pig.scripting.jython.JythonFunction' with arguments '[../udfs/python/production.py, production]'
> I assume it is using the path on the backend to try to locate the UDF.
> The script is:
> {code}
> register '../udfs/python/production.py' using jython as bballudfs;
> players  = load 'baseball' as (name:chararray, team:chararray,
>                 pos:bag{t:(p:chararray)}, bat:map[]);
> nonnull  = filter players by bat#'slugging_percentage' is not null and
>                 bat#'on_base_percentage' is not null;
> calcprod = foreach nonnull generate name, bballudfs.production(
>                 (float)bat#'slugging_percentage',
>                 (float)bat#'on_base_percentage');
> dump calcprod;
> {code}

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