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

Hadoop download address

wget http://hadoop.f.dajiangtai.com/hadoop2.2/hadoop-2.2.0-x64.tar.gz

0, Create user useradd -m hadoop

1. Download hadoop and extract it

Assign roles to hadoop files

chown -R hadoop:hadoop hadoop

Group Name: Role Name File Name

3. ls -l View details Whether role assignment is successful

4. Create a directory of files required by hadoop

mkdir -p /data/dfs/name

mkdir -p /data/dfs/data

mkdir -p /data/tmp

5. Assign role permissions to your own user directory, such as hadoop users

chown -R hadoop:hadoop hadoop/data

6, ls -l Check whether the allocation is successful

7. Modify the hadoop configuration file

a、 core-site.xml

b、hdfs-site.xml

c、mapred-site.xml

8. Configure hadoop environment variables

9, Format hadoop bin/hadoop namenode -format

10. Start hadoop sbin/start-all.sh

11, jps check whether the process started

12, hdfs create directory

bin/hadoop fs -mkdir /dajiangtai

13. Add files to dajiangtai directory of hdfs

hadoop fs -put /usr/java/hadoop/djt.txt /dajiangtai

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