1、建立一个测试的目录 ?[******@localhosthadoop-]#bin/hadoopdfs-mkdir/hadoop/input 2、建立测试文件[******@localhosttest]#、将测试文件放到测试目录中[******@localhosthadoop-]#bin/hadoopdfs-put./test/、执行wordcount程序[******@localhosthadoop-]#bin/hadoopjarhadoop-examples-/*/hadoop/output/hadoop/output目录必须不存在,.:Outputdirectory/hadoop/outputalreadyexists因为Hadoop执行的是耗费资源的运算,产生的结果默认是不能被覆盖的。执行成功的话,显示下面的信息:[******@localhosthadoop-]#bin/hadoopjarhadoop-examples-/*/hadoop/output13/01/1700:36::Totalinputpathstoprocess:113/01/1700:36::Loadedthenative-hadooplibrary13/01/1700:36::Snappynativelibrarynotloaded13/01/1700:36::Runningjob:job_201301162205_000613/01/1700:36:: map0%reduce0%13/01/1700:36:: map100%Reduce0%13/01/1700:36:: map100%reduce33%13/01/1700:36:: map100%reduce100%13/01/1700:36::plete:job_201301162205_000613/01/1700:36::Counters:2913/01/1700:36:: JobCounters13/01/1700:36:: Launchedreducetasks=113/01/1700:36:: SLOTS_MILLIS_
Hadoop实例测试完整版 来自淘豆网m.daumloan.com转载请标明出处.
