1、Hadoop-env.sh7Hadoop-env.sh7使到運(yùn)行javac，jps8使到運(yùn)行javac，jps899初學(xué)者因?yàn)椴皇煜ava和Hadoop擎可以解決大量問題（技巧利用搜索import初學(xué)者因?yàn)椴皇煜ava和Hadoop擎可以解決大量問題（技巧利用搜索importimport保險的辦法是加載以及l(fā)ib下所有的jar保險的辦法是加載以及l(fā)ib下所有的jar propertyname=build propertyname=buildlocation=buildpropertypathid=hadoop-filesetincludename=*/*.jarfilesetinclude

2、name=*/*.jar續(xù) 續(xù)/home/huang/apache-ant-編譯/home/huang/apache-ant-編譯publicclassemopublicclassemoicvoidmain(Stringargs)throwsConfigurationconf=newFileSystemfs=Pathfile=續(xù)if(fs.exists(file)else/Writingto ln(File續(xù)if(fs.exists(file)else/Writingto ln(File FSDataOutputStreamoutStream=/ReadingfromStringdata =指

3、南第3erface”一指南第3erface”一壓縮工具參考壓縮工具參考安裝yum-yinstallgccgcc-c+autoconf安裝yum-yinstallgccgcc-c+autoconf測試HDFSCAPI：一段C測試HDFSCAPI：一段C/Followingisalibhdfsleadaptedfromthesrc/c+/libhdfs/hdfs_write.c/Followingisalibhdfsleadaptedfromthesrc/c+/libhdfs/hdfs_write.coftheHadoopargc,char*argv)hdfsFS fs=if(!fs)f(stde

4、rr,Cannotconnecttochar*fileName=char*message=size= etoHDFSC續(xù)exists=hdfsExists(fs,if(exists-1)f(stdout,續(xù)exists=hdfsExists(fs,if(exists-1)f(stdout,File%sexists!n,/Createandopenfilefor hdfsFileoutFile=hdfsOpenFile(fs,fileName,O_WRONLY|O_CREAT,0,0,0); if (!outFile) f(stderr,Failedtoopen%sforwriting!n,/w

5、ritetohdfsCloseFile(fs, outFile);續(xù)/OpenfileforhdfsFileinFile=hdfsOpenFile(fs,fileName,續(xù)/OpenfileforhdfsFileinFile=hdfsOpenFile(fs,fileName,O_RDONLY,0,0,if(!inFile)f(stderr,Failedtoopen%sforreading!n,char*data=malloc(sizeof(char)*/Readfrom tSizereadSize=hdfsRead(fs,inFile,(void*)data,f(stdout,%sn, return-I $HADOOP_HOME/src/c+/libhdfs -I $HADOOP_HOME/src/c+/libhdfs -L $HADOOP_HOME/c+/Linux-amd64- -o- Dataguru（煉數(shù)成金）是專業(yè)數(shù)據(jù)分，提供教育，內(nèi)容，社區(qū)，數(shù)據(jù)分析業(yè)務(wù)Dataguru（煉數(shù)成金）是專業(yè)數(shù)據(jù)分，提供教育，內(nèi)容，社區(qū)，數(shù)據(jù)分析業(yè)務(wù)等服的課程采用新興的互聯(lián)網(wǎng)教育形式，獨(dú)創(chuàng)地發(fā)展了逆費(fèi)式網(wǎng)絡(luò)培訓(xùn)課程模式。既繼承傳統(tǒng)教育重學(xué)習(xí)氛圍，重競爭壓力的特點(diǎn)，同時打破時空限制，把天