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

Question

I am trying to write a snappy block compressed sequence file from a map-reduce job. I am using hadoop 2.0.0-cdh4.5.0, and snappy-java 1.0.4.1

Here is my code:

Answer 1

In my case, you may check the hive-conf files : mapred-site.xml , and check the key: mapreduce.admin.user.env 's value,

I tested it in a new datanode, and received unlinked-buildSnappy error on the machine where is no native dependencies ( libsnappy.so , etc)