install hadoop in fedora

1>hostname hrs-hadoop (which will used in xml)

2>mkdir -p /home/jka07@int.hrs.com/hadoop/dfs/name

3> add property in /home/jka07@int.hrs.com/software/hadoop-2.7.0/etc/hadoop/hdfs-site.xml 

<property>

        <name>dfs.namenode.secondary.http-address</name>
        <value>hrs-hadoop:9001</value>
    </property>
    <property>
        <name>dfs.namenode.name.dir</name>
        <value>file:/home/jka07@int.hrs.com/hadoop/dfs/name</value>
    </property>
    <property>
        <name>dfs.datanode.data.dir</name>
        <value>file:/home/jka07@int.hrs.com/hadoop/dfs/data</value>
    </property>
    <property>
        <name>dfs.replication</name>
        <value>3</value>
    </property>
    <property>
        <name>dfs.webhdfs.enabled</name>
        <value>true</value>
    </property>

<property>
<name>dfs.permissions</name>
<value>false</value>

4> core-site.xml

 <property>
         <name>fs.defaultFS</name>
         <value>hdfs://hrs-hadoop:9000</value>
    </property>
    <property>
         <name>io.file.buffer.size</name>
         <value>131072</value>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>file:/home/jka07@int.hrs.com/hadoop/tmp</value>
        <description>Abasefor other temporary directories.</description>
    </property>
    <property>
        <name>hadoop.proxyuser.spark.hosts</name>
        <value>*</value>
    </property>
    <property>
        <name>hadoop.proxyuser.spark.groups</name>
        <value>*</value>
    </property>

5>mapred-site.xml

<configuration>
    <property>
        <name>mapreduce.framework.name</name>
        <value>yarn</value>
    </property>
    <property>
        <name>mapreduce.jobhistory.address</name>
        <value>hrs-hadoop:10020</value>
    </property>
    <property>
        <name>mapreduce.jobhistory.webapp.address</name>
        <value>hrs-hadoop:19888</value>
    </property>
</configuration>

6> yarn-site.xml

    <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.resourcemanager.address</name>
        <value>hrs-hadoop:8032</value>
    </property>
    <property>
        <name>yarn.resourcemanager.scheduler.address</name>
        <value>hrs-hadoop:8030</value>
    </property>
    <property>
        <name>yarn.resourcemanager.resource-tracker.address</name>
        <value>hrs-hadoop:8035</value>
    </property>
    <property>
        <name>yarn.resourcemanager.admin.address</name>
        <value>hrs-hadoop:8033</value>
    </property>
    <property>
        <name>yarn.resourcemanager.webapp.address</name>
        <value>hrs-hadoop:8088</value>
    </property>

7>

sbin>./start-dfs.sh

sbin>./start-yarn.sh

8> some exception

a)DiskChecker$DiskErrorException: Directory is not readable:  /home/hadoop/dfs/data

answer: check if there is user named hadoop ,or you can not mkdir in /home/hadoop (this is is user account)

b)

hadoop datanode启动失败（All directories in dfs.data.dir are invalid）

ans: check the priviledges and change mode by using "chmod"

ref:

http://blog.youkuaiyun.com/lulongzhou_llz/article/details/42653589

http://blog.youkuaiyun.com/shiqidide/article/details/8113568

http://blog.youkuaiyun.com/xyls12345/article/details/23938087