Yes, The steps I followed where: 1-Intall lzo 2.06 in a machine with the same kernel as my nodes. 2-Compile there lzo 0.4.15 (in /lib replaced cdh3u3 per my hadoop 0.20.2 release) 3-Replace hadoop-lzo-0.4.9.jar for the now compiled hadoop-lzo-0.4.15.jar in the hadoop lib directory of all my nodes and master 4-Put de generated native files in the native lib directory of all the nodes and master 5-In my jar job, replaced the jar library hadoop-lzo-0.4.9.jar for hadoop-lzo-0.4.15.jar
And sometimes when a job is running I get (4 times so the job gets killed): ...org.apache.hadoop.mapred.ReduceTask: Shuffling 3188320 bytes (1025174 raw bytes) into RAM from attempt_201202291221_1501_m_000480_0 2012-03-02 02:32:55,496 INFO org.apache.hadoop.mapred.ReduceTask: Task attempt_201202291221_1501_r_000105_0: Failed fetch #1 from attempt_201202291221_1501_m_000046_0 2012-03-02 02:32:55,496 WARN org.apache.hadoop.mapred.ReduceTask: attempt_201202291221_1501_r_000105_0 adding host hadoop-01.backend to penalty box, next contact in 4 seconds 2012-03-02 02:32:55,496 INFO org.apache.hadoop.mapred.ReduceTask: attempt_201202291221_1501_r_000105_0: Got 1 map-outputs from previous failures 2012-03-02 02:32:55,497 FATAL org.apache.hadoop.mapred.TaskRunner: attempt_201202291221_1501_r_000105_0 : Map output copy failure : java.lang.InternalError: lzo1x_decompress returned: -8 at com.hadoop.compression.lzo.LzoDecompressor.decompressBytesDirect(Native Method) at com.hadoop.compression.lzo.LzoDecompressor.decompress(LzoDecompressor.java:305) at org.apache.hadoop.io.compress.BlockDecompressorStream.decompress(BlockDecompressorStream.java:76) at org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:75) at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.shuffleInMemory(ReduceTask.java:1553) at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getMapOutput(ReduceTask.java:1432) at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(ReduceTask.java:1285) at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceTask.java:1216) -- View this message in context: http://lucene.472066.n3.nabble.com/LZO-exception-decompressing-returned-8-tp3783652p3792505.html Sent from the Hadoop lucene-users mailing list archive at Nabble.com.