core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://cf:8020/</value>
</property>
</configuration>
hdfs-site.xml
<configuration>
<property>
<name>dfs.permissions.superusergroup</name>
<value>hadoop</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:/home/hadoop/works/1/dfs/nn</value>
</property>
<property>
<name>dfs.namenode.checkpoint.dir</name>
<value>file:/home/hadoop/works/1/dfs/snn</value>
</property>
<!-- checkpoint -->
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>index:50090</value>
</property>
<property>
<name>dfs.namenode.checkpoint.period</name>
<value>180</value>
</property>
<property>
<name>dfs.namenode.checkpoint.check.period</name>
<value>180</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/home/hadoop/works/1/dfs/dn,file:/home/hadoop/works/2/dfs/dn</value>
</property>
<property>
<name>dfs.replication</name>
<value>3</value>
</property>
<property>
<name>dfs.datanode.failed.volumes.tolerated</name>
<value>1</value>
</property>
<!-- 官方文档中没提到这个，日志中报ugi被弊了，***这个也不行 -->
<property>
<name>hadoop.http.staticuser.user</name>
<value>hadoop,hadoop</value>
</property>
</configuration>
mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
<property>
<name>mapred.child.java.opts</name>
<value>-Xmx400m</value>
</property>
</configuration>
yarn-site.xml
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>cf:8031</value>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>cf:8032</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>cf:8030</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address</name>
<value>cf:8033</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address</name>
<value>cf:8088</value>
</property>
<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>6144</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce.shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
<property>
<name>yarn.nodemanager.local-dirs</name>
<value>/home/hadoop/work/1/yarn/local,/home/hadoop/work/2/yarn/local</value>
</property>
<property>
<name>yarn.nodemanager.log-dirs</name>
<value>/home/hadoop/work/1/yarn/logs,/home/hadoop/work/2/yarn/logs</value>
</property>
</configuration>
slaves文件指定datanode的机器名。
系统环境变量
export JAVA_HOME=/usr/local/jdk
export HADOOP_PREFIX=~/hadoop-home/hadoop-2.0.0-cdh4.0.0
export HADOOP_MAPRED_HOME=$HADOOP_PREFIX
export HADOOP_COMMON_HOME=$HADOOP_PREFIX
export HADOOP_HDFS_HOME=$HADOOP_PREFIX
export YARN_HOME=$HADOOP_PREFIX
export PATH=$PATH:$HADOOP_PREFIX/bin:$HADOOP_PREFIX/sbin
export HADOOP_LOG_DIR=