0_24”exportPATH”PATHJAVA_HOMEbi
JAVA_HOMEjrebi
”exportCLASSPATH”CLASSPATHJAVA_HOMElibJAVA_HOMEjrelib”exportHADOOP_HOME”roothadoop0202”提前配置好省的麻烦。。。4测试。建立个testjava文件，测试安装成功否roothadoop1rootjavactestjavaroothadoop1rootjavatest出现结果即安装成功。若不成功检查配置是否正确
Hadoop安装
本集群安装hadoop0202版本，之前的021貌似有bug（困惑了好几天）。1通过wi
dows中的SSHsecureshell软件将hadoop0202targz安装包传送到三台
f机器。2安装hadooproothadoop1roottarzvxfhadoop0202targz3配置在etcprofile中我们已经配置过，hadoop安装包在root目录下。配置roothadoop0202co
fhadoope
vshroothadoop1rootsudovihadoop0202co
fhadoope
vsh配置JAVA_HOME和HADOOP_HOME两个路径。exportJAVA_HOME”usrjavajdk160_24”exportHADOOP_HOME”roothadoop0202”配置如下五个文件：①coresitexmlco
figuratio
property
amefsdefault
ame
amevaluehdfs19216811009000valuepropertyproperty
amehadooptmpdir
amevalueroottmpvaluepropertyco
figuratio
②hdfssitexmlco
figuratio
property
amedfs
amedir
amevalueroothdfs
amevaluefi
altruefi
alpropertyproperty
amedfsdatadir
amevalueroothdfsdatavaluefi
altruefi
alpropertyproperty
amefscheckpoi
tdir
amevalueroothdfs
ameseco
daryvaluefi
altruefi
alpropertyproperty
amedfsreplicatio
amevalue1valueproperty
fco
figuratio
③mapredsitexmlco
figuratio
property
amefsdefault
ame
amevaluehdfs19216811009000valuefi
altruefi
alpropertyproperty
amedfsreplicatio
amevalue1valuepropertyproperty
amemapredjobtracker
amevalue19216811009001valuepropertyproperty
amemapredlocaldir
amevaluerootmapredlocalvaluefi
altruefi
alpropertyproperty
amemapredsystemdir
amevaluetmphadoopmapredsystemvaluefi
altruefi
alpropertyproperty
amemapredtasktrackermaptasksmaximum
amevalue2valuefi
altruefi
alpropertyproperty
amemapredtasktrackerreducetasksmaximum
amevalue2valuefi
altruefi
alpropertyproperty
amemapredchildjavaopts
amevalueXmx400mvaluepropertyco
figuratio
④配置masters
f1921681100⑤配置slavers192168110119216811024复制hadoop文件夹到其他节点roothadoop1rootscprhadoop0202hadoop2rootroothadoop1rootscprhadoop0202hadoop3root5基本命令①格式化
ame
ode中的hdfd文件系统roothadoop1rootcdhadoop0202roothadoop1hadoop0202bi
hadoop
ame
odeformat②启动roothador