Shulou(Shulou.com)06/03 Report--

# turn off the firewall

Service iptablesstop

1: install JDK

1.1 upload jdk-7u_65-i585.tar.gz

1.2 decompress jdk

# create a folder

Mkdir / home/hadoop/app

# decompression

Tar-zxvf jdk-7u55-linux-i586.tar.gz-C / home/hadoop/app

1.3 add java to the environment variable

Sudo vim / etc/profile

# add at the end of the file

Export JAVA_HOME=/home/hadoop/app/jdk-7u_65-i585

Export PATH=$PATH:$JAVA_HOME/bin

# refresh configuration

Source / etc/profile

2: install hadoop2.4.1

Note: hadoop2.x configuration file $HADOOP_HOME/etc/hadoop

Pseudo-distribution requires five configuration files to be modified

2.1 configure hadoop/ home/hadoop/app/hadoop-2.4.1/etc/hadoop

The first one: hadoop-env.sh

Vim hadoop-env.sh

# Line 27

Export JAVA_HOME=/home/hadoop/app/jdk1.7.0_65

The second one: core-site.xml

Fs.defaultFS

Hdfs://weekend-1206-01 (hostname): 9000

Hadoop.tmp.dir

/ home/hadoop/app/hadoop-2.4.1/data

Third: hdfs-site.xml hdfs-default.xml (3)

Dfs.replication

one

Fourth: mapred-site.xml (mv mapred-site.xml.templatemapred-site.xml)

Mv mapred-site.xml.template mapred-site.xml

Vim mapred-site.xml

Mapreduce.framework.name

Yarn

The fifth: yarn-site.xml

Yarn.resourcemanager.hostname

Weekend-1206-01 (hostname)

Yarn.nodemanager.aux-services

Mapreduce_shuffle

3: start hadoop

3.1Add hadoop to environment variable vim / etc/proflie

Export JAVA_HOME=/usr/java/jdk1.7.0_65

ExportHADOOP_HOME=/home/hadoop/app/hadoop-2.4.1

ExportPATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

# source / etc/profile

3.2Formenting namenode (initializing namenode)

# hadoop namenode-format

3. 3: start / home/hadoop/app/hadoop-2.4.1/sbin

Start HDFS first

# start-dfs.sh

Restart YARN

# start-yarn.sh

Use the jps command to verify

# jps

[note: add the corresponding hostname in vim/home/hadoop/app/hadoop-2.4.1/etc/hadoop/slaves when doing the cluster]

4: browser access:

Http://ip:50070 (HDFS Management Interface)

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