hadoop如何安装部署

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一：准备工作 １：准备号ＪＤＫ环境 ２：关闭防火墙 ３：selinux disabled ４： ssh安装 ５：修改host文件 ６：修改hostname

二：下载CDH http://archive.cloudera.com/cdh5/cdh/4/

三:环境变量配置 export JAVA_HOME=/home/bigdata/jdk1.7.0_45
export HADOOP_HOME=/home/hadoop/cdh5.4.0/hadoop-2.0.0-cdh5.4.0
export HADOOP_COMMOM_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_YARN_HOME=$HADOOP_HOME
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
export HDFS_CONF_DIR=$HADOOP_HOME/etc/hadoop
export YARN_CONF_DIR=$HADOOP_HOME/etc/hadoop
export HADOOP_LIB=$HADOOP_HOME/lib
export JAVA_LIBRARY_PATH=$HADOOP_HOME/lib/native

export PATH=$PATH:/etc/haproxy/sbin/:$JAVA_HOME/bin:$JAVA_HOME/jre/bin  export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$HADOOP_LIB/native/libhadoop.so

四：配置文件 core-site.xml

fs.default.name
hdfs://hadoop-001:8020 hadoop.tmp.dir /hadoop/tmp fs.trash.interval 10080 fs.trash.checkpoint.interval 10080 hadoop.proxyuser.hadoop.hosts hadoop-001 hadoop.proxyuser.hadoop.groups hadoop

hdfs-site.xml

dfs.replication 2 dfs.namenode.name.dir file:/hadoop/name ture dfs.datanode.data.dir file:/hadoop/data ture dfs.permissions false dfs.namenode.http-address hadoop-001:50070 dfs.secondary.http.address hadoop-001:50090 dfs.webhdfs.enabled true

yarn-site.xml

yarn.resourcemanager.resource-tracker.address
hadoop-001:18025
yarn.resourcemanager.address
hadoop-001:18040
yarn.resourcemanager.scheduler.address
hadoop-001:18030
yarn.resourcemanager.admin.address
hadoop-001:18141
yarn.resourcemanager.webapp.address
hadoop-001:8088
yarn.nodemanager.aux-services
mapreduce.shuffle
yarn.nodemanager.aux-services.mapreduce.shuffle.class
org.apache.hadoop.mapred.ShuffleHandler
yarn.application.classpath
$HADOOP_CONF_DIR,$HADOOP_COMMON_HOME/share/hadoop/common/,$HADOOP_COMMON_HOME/share/hadoop/common/lib/,$HADOOP_HDFS_HOME/share/hadoop/hdfs/,$HADOOP_HDFS_HOME/share/hadoop/hdfs/lib/,$HADOOP_YARN_HOME/share/hadoop/yarn/,$HADOOP_YARN_HOME/share/hadoop/yarn/lib/

mapred-site.xml

                 mapreduce.framework.name          yarn                      mapreduce.jobhistory.address          hadoop-001:10020                      mapreduce.jobhistory.webapp.address          hadoop-001:19888                      mapreduce.job.tracker          hadoop-001:8021          ture                      mapred.system.dir          file:/hadoop/mapred/system          ture                       mapred.local.dir           file:/hadoop/mapred/local           ture                        mapred.child.env            LD_LIBRARY_PATH=/usr/local/lib                   

五:创建号hdfs配置文件中的目录

六:格式化namenode hadoop namenode -format

七: 启动各自服务

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