MAC安装Hadoop2.8

ssh-keygen -t rsa -P ""

cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys

ssh localhost

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)

brew install hadoop

export HADOOP_HOME=/usr/local/Cellar/hadoop/2.8.2
export PATH=.:$JAVA_HOME/bin:$HADOOP_HOME:$PATH

cd /usr/local/Cellar/hadoop/XXXXX/libexec/etc/hadoop

export HADOOP_OPTS="-Djava.security.krb5.realm=OX.AC.UK -Djava.security.krb5.kdc=kdc0.ox.ac.uk:kdc1.ox.ac.uk"

<configuration>
 <property>
   <name>hadoop.tmp.dir</name>
   <value>/usr/local/Cellar/hadoop/2.8.2/data</value>
   <description>A base for other temporary directories.</description>
 </property> 
<property>
   <name>fs.default.name</name>
   <value>hdfs://localhost:9000</value>
 </property>
</configuration>

<configuration>
  <property>
    <name>dfs.replication</name>
    <value>1</value>
  </property>
</configuration>

<configuration>
  <property>
    <name>mapred.job.tracker</name>
    <value>localhost:9001</value>
  </property>
</configuration>

hadoop namenode -format

./start-dfs.sh
./start-yarn.sh