UnsatisfiedLinkError

Error Scenario:

java.lang.UnsatisfiedLinkError: org.apache.hadoop.util.NativeCodeLoader.buildSupportsSnappy()Z

We will receive this error message if we try to read snappy files without having snappy compression/decompression codec installed properly. 

Or

Resolution:

We should install snappy compression/decompression codec to resolve this error message and its corresponding .so files should be available (copied from /usr/local/bin) in $HADOOP_HOME/lib/native directory location.

For Snappy Installation instructions please read through this post.