java.lang.IllegalArgumentException: Compression codec
org.apache.hadoop.io.compress.SnappyCodec not found.
at org.apache.hadoop.io.compress.CompressionCodecFactory.getCodecClasses(CompressionCodecFactory.java:96)
at org.apache.hadoop.io.compress.CompressionCodecFactory.(LineRecordReader.java:62)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:522)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
好像是因为hadoop中没有这个SnappyCodec
运行的时候老是报这个错误，解决办法是edit location 在高级参数页面的io.compression.codecs 中把SnappyCodec 去掉