锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲第一永久在线观看,亚洲色大成网站www,亚洲成A∨人片天堂网无码http://www.tkk7.com/jinfeng_wang/category/49848.htmlG-G-S,D-D-U!zh-cnSun, 23 Oct 2011 15:34:21 GMTSun, 23 Oct 2011 15:34:21 GMT60榪愯 絎竴MapReduce紼嬪簭閬囧埌鐨勯棶棰樸?/title>http://www.tkk7.com/jinfeng_wang/archive/2011/10/22/361807.htmljinfeng_wangjinfeng_wangSat, 22 Oct 2011 15:09:00 GMThttp://www.tkk7.com/jinfeng_wang/archive/2011/10/22/361807.htmlhttp://www.tkk7.com/jinfeng_wang/comments/361807.htmlhttp://www.tkk7.com/jinfeng_wang/archive/2011/10/22/361807.html#Feedback0http://www.tkk7.com/jinfeng_wang/comments/commentRss/361807.htmlhttp://www.tkk7.com/jinfeng_wang/services/trackbacks/361807.htmlhttp://hadoop.apache.org/mapreduce/docs/r0.21.0/mapred_tutorial.html
緇忛獙鎬葷粨錛?br />1錛夊繀欏誨皢鐩稿叧鐨凜lass鏂囦歡錛堝寘鎷琈ap錛孯educe錛夋墦鍖呮垚Jar鏂囦歡 2錛塭xport HADOOP_CLASSPATH=./ 3) 涓嶈灝咼ar鏂囦歡鍜孋lass鏂囦歡娣鋒穯鍦ㄤ竴璧鳳紝鏀懼湪涓涓洰褰曪紝 渚嬪鐩綍緇撴瀯濡備笅錛?br /> 鍚﹀垯鎵ц hadoop jar test.jar NewMaxTemperature /input /output 鐨勬椂鍊欙紝 浼氬嚭鐜?涓嬮潰鐨勯敊璇紝 鍙傝? http://groups.google.com/group/hadoopors/browse_thread/thread/b011ef93af5633ae/8227267657518bbb?#8227267657518bbb 2011-10-22 22:44:12,062 INFO org.apache.hadoop.mapred.TaskInProgress: Error from attempt_201110222208_0014_m_000001_3 on tracker_ad:localhost/127.0.0.1:2401: java.lang.RuntimeException: java.lang.ClassNotFoundException: NewMaxTemperature$NewMaxTemperatureMapper at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1128) at org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:167) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:612) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:328) at org.apache.hadoop.mapred.Child$4.run(Child.java:217) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:742)