[Hadoop] stand-alone attempt to install and test Hadoop2.7.1 (annotated script included)

It's quite smooth, the comments in the code are written in more detail. Attached script, interested friends can try. Note the changes to the environment variable names that are added in BASHRC, or the main class cannot be found.

1# # #ubuntu14.04LTS2 3## MakeHadoop Account4 sudoAddGroup Hadoop # Makea group named Hadoop5 sudoAddUser-ingroup Hadoop Hadoop #add an user named Hadoop6 sudo VI/etc/sudoers #add Hadoop into Sudoers (hadoop=root)7 8 # #change your account9 sudo suHadoopTen  One##Install SSH A sudoApt-getInstallOpenssh-server #Installopenssh-Server - sudo/etc/init.d/SSHStart #startSSHServer - PS-E |grep SSH#check whetherSSHIs started or not the  -# #loginchwithout password - Ssh-keygen-T Rsa-p""#loginchWithout password generate RSA &rsa.pub - CP~/.SSH/id_rsa.pub ~/.SSH/authorized_keys #add Authorized_keys to realize'log in without password' + SSHlocalhost #check - Exit #check +  A##InstallJava Environment at sudoApt-getInstallopenjdk-7-JDK #InstallJDK -Java-version #check whether Java is installed or not -  -# #get &InstallHadoop2.7.1(under User:hadoop) -CD ~ - mkdirHadoop in sudo wgethttp//mirror.bit.edu.cn/apache/hadoop/common/hadoop-2.7.1/hadoop-2.7.1.tar.gz #get hadoop2.7.1 - sudo TarXzf hadoop-2.7.1.Tar. GZ #UnzipThe hadoop-*.*.*.Tar. GZ to sudo RMhadoop-2.7.1.Tar. GZ #remove TheZip + sudo MVhadoop-2.7.1/usr/local/#InstallHadoop at local - sudo chmod 774/usr/local/hadoop #granted permissions to users (r&W) the  *# #configure ~/. BASHRC $Update-alternatives--config Java #get java's path (stared one such as'/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java'. But we just need'/usr/lib/jvm/java-7-openjdk-amd64'This shorter path to set up Java_home environment variables)Panax Notoginseng sudo VI~/.BASHRC #edit BASHRCfile -  the # #add The content below to the end of BASHRC +#--------------------------------------------------------------# A  the #HADOOP VARIABLES START +Export java_home=/usr/lib/jvm/java-7-openjdk-AMD64 -Export hadoop_install=/usr/local/hadoop-2.7.1 $Export path= $PATH: $HADOOP _install/bin $Export path= $PATH: $HADOOP _install/Sbin -Export Hadoop_mapred_home=$HADOOP _install -Export Hadoop_common_home=$HADOOP _install theExport Hadoop_hdfs_home=$HADOOP _install -Export Yarn_home=$HADOOP _installWuyiExport hadoop_common_lib_native_dir= $HADOOP _install/lib/native theExport hadoop_opts="-djava.library.path= $HADOOP _install/lib" - #HADOOP VARIABLES END Wu  -#--------------------------------------------------------------# AboutSOURCE ~/.BASHRC # MakeThe environment variables come into effect $  - # #configure Hadoop - sudo VI/usr/local/hadoop-2.7.1/etc/hadoop/hadoop-Env.SH#edit hadoop-Env.SH -? Java_home # (inchVimLocateJava_home A#change'Export Java_home=${java_home}'Into'Export JAVA_HOME=/USR/LIB/JVM/JAVA-7-OPENJDK-AMD64' +source/usr/local/hadoop-2.7.1/etc/hadoop/hadoop-Env.SH#update the  - # #test $cd/usr/local/hadoop-2.7.1/#go There the sudo mkdirTest the sudo CPREADME.txt Test theBin/hadoop Jar share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-2.7.1-sources.jar Org.apache.hadoop.examples.WordCount Input Output

[Hadoop] stand-alone attempt to install and test Hadoop2.7.1 (annotated script included)