distributed cache + native lib

Hey,
I am trying to add a native lib file from HDFS to distributed cache so it can be loaded inside a UDF. This seems pretty standard and has been around for years, so I’m guessing I am overlooking something. Here’s my basic approach, please let me know if you spot the problem.

1. Put library in hdfs, located at ‘hdfs://localhost:8020/tmp/libcpp.dylib
2. Loaded into distributed cache in pig script:

set mapred.create.symlink yes;
set mapred.cache.files 'hdfs://localhost:8020/tmp/libcpp_jni_operators.dylib#libcpp_jni_operators.dylib';

Inside UDF:
System.loadLibrary("libcpp_jni_operators.dylib”);

The UDF fails due to library not found on java.library.path. (And inspecting that path at runtime, the library is indeed not present).

Thanks,
Adam