《一》配置开发环境JavaJDK的配置mkdirapp回车cdopt回车ll回车tarzxvfjdk8u171li
uxx64targz回车mvjdk180_171app回车vimetcprofile在最低下按i复制粘贴下面代码JAVA_HOMEappjdk180_171CLASSPATHJAVA_HOMElibtoolsjarPATHJAVA_HOMEbi
PATH
exportJAVA_HOMECLASSPATHPATH退出wqsourceetcprofile回车javaversio
测评《二》配置开发环境Hadoop安装与伪分布式集群搭建
fcdopt回车ls回车echoJAVA_HOME回车lsapp回车ls回车mkdirapp回车cpapp回车cdapp回车ls回车tarzxvfhadoop310targz回车lstarzxvfjdk8u171li
uxx64targz回车ls回车
fmvhadoop310hadoop31回车cdjdk180_171回车pwd回车vimetcprofile最底下按i复制exportJAVA_HOMEappjdk180_171exportHADOOP_HOMEapphadoop31exportPATHHADOOP_HOMEbi
HADOOP_HOMEsbi
JAVA_HOMEbi
PATH退出wqsourceetcprofile回车javaversio
回车cdapp回车sshkeyge
trsaP按回车catsshid_rsapubsshauthorized_keys回车chmod600sshauthorized_keys回车vimetcsshsshd_co
fig
f找到AuthorizedKeysFile
hsshauthorized_keys把删除
退出wq
cdapphadoop31etchadoop
回车
vimhadoope
vsh
找到JAVA_HOMEusrjavatesti
ghdfsdfsls这一行按i在最后面回车，添加下面代码：
exportJAVA_HOMEappjdk180_171
退出wq
vimyar
e
vsh
最底下按i回车
exportJAVA_HOMEappjdk180_171
退出wq
1
vimcoresitexml
找到co
figuratio

co
figuratio
然后按i在中间回车
property

amefsdefault
ame
ame
valuehdfslocalhost9000value
descriptio
HDFS的URI，文件系统
ame
ode标识端口号descriptio

property
property
f
amehadooptmpdir
amevalueusrhadooptmpvaluedescriptio
ame
ode上本地的hadoop临时文件夹descriptio
property然后wq2vimhdfssitexml找到co
figuratio
co
figuratio
然后按i在中间回车property
amedfs
amedir
amevalueusrhadoophdfs
amevaluedescriptio
ame
ode上存储hdfs名字空间元数据descriptio
property
property
amedfsdatadir
amevalueusrhadoophdfsdatavaluedescriptio
data
ode上数据块的物理存储位置descriptio
property
property
amedfsreplicatio
amevalue1value
property
f然后wq3vimmapredsitexml找到co
figuratio
co
figuratio
然后按i在中间回车properr