hadoop StandAlone环境搭建

1.准备一台服务器

192.168.100.100

2.提前安装jdk

3.hadoop运行服务

NameNode            192.168.100.100

SecondaryNameNode   192.168.100.100

DataNode            192.168.100.100

ResourceManager     192.168.100.100

NodeManager         192.168.100.100

4.下载并解压hadoop

http://archive.apache.org/dist/hadoop/common/hadoop-2.7.5/hadoop-2.7.5.tar.gz

/export/server/hadoop/

5.修改配置文件

5.1  vim hadoop-2.7.5/etc/hadoop/core-site.xml

<configuration>

<property>

<name>fs.default.name</name>

<value>hdfs://192.168.100.100:8020</value>

</property>

<property>

<name>hadoop.tmp.dir</name>

<value>/export/servers/hadoop-2.7.5/hadoopDatas/tempDatas</value>

</property>

<!--  缓冲区大小，实际工作中根据服务器性能动态调整 -->

<property>

<name>io.file.buffer.size</name>

<value>4096</value>

</property>

<!--  开启hdfs的垃圾桶机制，删除掉的数据可以从垃圾桶中回收，单位分钟 -->

<property>

<name>fs.trash.interval</name>

<value>10080</value>

</property>

</configuration>

5.2  vim hadoop-2.7.5/etc/hadoop/hdfs-site.xml

<configuration>

<!-- NameNode存储元数据信息的路径，实际工作中，一般先确定磁盘的挂载目录，然后多个目录用，进行分割   -->

<!--   集群动态上下线

<property>

<name>dfs.hosts</name>

<value>/export/servers/hadoop-2.7.5/etc/hadoop/accept_host</value>

</property>

<property>

<name>dfs.hosts.exclude</name>

<value>/export/servers/hadoop-2.7.5/etc/hadoop/deny_host</value>

</property>

-->

<property>

<name>dfs.namenode.secondary.http-address</name>

<value>node01:50090</value>

</property>

<property>

<name>dfs.namenode.http-address</name>

<value>node01:50070</value>

</property>

<property>

<name>dfs.namenode.name.dir</name>

<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas,file:///export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas2</value>

</property>

<!--  定义dataNode数据存储的节点位置，实际工作中，一般先确定磁盘的挂载目录，然后多个目录用，进行分割  -->

<property>

<name>dfs.datanode.data.dir</name>

<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas,file:///export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas2</value>

</property>

<property>

<name>dfs.namenode.edits.dir</name>

<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/nn/edits</value>

</property>

<property>

<name>dfs.namenode.checkpoint.dir</name>

<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/snn/name</value>

</property>

<property>

<name>dfs.namenode.checkpoint.edits.dir</name>

<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/dfs/snn/edits</value>

</property>

<property>

<name>dfs.replication</name>

<value>3</value>

</property>

<property>

<name>dfs.permissions</name>

<value>false</value>

</property>

<property>

<name>dfs.blocksize</name>

<value>134217728</value>

</property>

</configuration>

5.3 vim hadoop-2.7.5/etc/hadoop/hadoop-env.sh

export JAVA_HOME=jdk路径

5.4 vim hadoop-2.7.5/etc/hadoop/mapred-site.xml

<configuration>

<property>

<name>mapreduce.framework.name</name>

<value>yarn</value>

</property>

<property>

<name>mapreduce.job.ubertask.enable</name>

<value>true</value>

</property>

<property>

<name>mapreduce.jobhistory.address</name>

<value>node01:10020</value>

</property>

<property>

<name>mapreduce.jobhistory.webapp.address</name>

<value>node01:19888</value>

</property>

</configuration>

5.5 vim hadoop-2.7.5/etc/hadoop/yarn-site.xml

<configuration>

<property>

<name>yarn.resourcemanager.hostname</name>

<value>node01</value>

</property>

<property>

<name>yarn.nodemanager.aux-services</name>

<value>mapreduce_shuffle</value>

</property>

<property>

<name>yarn.log-aggregation-enable</name>

<value>true</value>

</property>

<property>

<name>yarn.log-aggregation.retain-seconds</name>

<value>604800</value>

</property>

</configuration>

5.6  vim hadoop-2.7.5/etc/hadoop/mapred-env.sh

export JAVA_HOME=jdk路径

5.7 vim hadoop-2.7.5/etc/hadoop/slaves

localhost

6.启动服务

创建数据存放文件夹:

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/tempDatas

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas2

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas2

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/nn/edits

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/snn/name

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/dfs/snn/edits

首次启动 HDFS 时，必须对其进行格式化操作：

bin/hdfs namenode -format

启动服务：

sbin/start-dfs.sh

sbin/start-yarn.sh

sbin/mr-jobhistory-daemon.sh start historyserver

浏览查看启动页面:

hdfs :     http://192.168.100.100:50070

yarn :    http://192.168.100.100:8088

jobhistory:  http://192.168.100.100:19888