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Posted to mapreduce-user@hadoop.apache.org by Marko Dinic <ma...@nissatech.com> on 2014/12/10 16:33:46 UTC

ZlibDecompressor throws an exception

Hello everyone,

I'm trying to instantiate ZlibDecompressor using following constructor

ZlibDecompressor inflater=new 
ZlibDecompressor(ZlibDecompressor.CompressionHeader.DEFAULT_HEADER,1024);

This constructor call throws an exception

java.lang.UnsatisfiedLinkError: 
org.apache.hadoop.io.compress.zlib.ZlibDecompressor.init(I)J
     at org.apache.hadoop.io.compress.zlib.ZlibDecompressor.init(Native 
Method)
     at 
org.apache.hadoop.io.compress.zlib.ZlibDecompressor.<init>(ZlibDecompressor.java:114)
     at 
com.nissatech.datadecompression.DecompressorReducer.reduce(DecompressorReducer.java:68)
     at 
com.nissatech.datadecompression.DecompressorReducer.reduce(DecompressorReducer.java:25)
     at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:176)
     at 
org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:566)
     at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:408)
     at 
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:216)

I'm using Hadoop 0.20.2 due to certain constraints.

What is the reason of this exception and how to fix it?

I'm new to Hadoop so any help would be highly appreciated.

Thanks,
Marko