hadoop3.0+centos7.4單機安裝教程
參考教程
http://blog.csdn.net/cafebar123/article/details/73500014
相關下載
hive下載地址
http://mirrors.hust.edu.cn/apache/hive/stable-2/apache-hive-2.3.2-bin.tar.gz
hadoop下載地址
https://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-3.0.0/hadoop-3.0.0.tar.gz
1. hive安裝目錄 /opt/hive/apache-hive-2.3.2-bin
2. hadoop安裝目錄 /opt/hadoop/hadoop-3.0.0
3. JDK安裝目錄 /usr/java/jdk1.8.0_65
4. 環境變量配置
export JAVA_HOME=/usr/java/jdk1.8.0_65
export HADOOP_HOME=/opt/hadoop/hadoop-3.0.0
export HADOOP_CONF_DIR=${HADOOP_HOME}/etc/hadoop
export HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_HOME}/lib/native
export HADOOP_OPTS="-Djava.library.path=${HADOOP_HOME}/lib"
export HIVE_HOME=/opt/hive/apache-hive-2.3.2-bin
export HIVE_CONF_DIR=${HIVE_HOME}/conf
export CLASS_PATH=.:${JAVA_HOME}/lib:${HIVE_HOME}/lib:$CLASS_PATH
export PATH=.:${JAVA_HOME}/bin:${HADOOP_HOME}/bin:${HADOOP_HOME}/sbin:${HIVE_HOME}/bin:$PATH
5. 讓環境變量生效
source /etc/profile
6. vim /opt/hadoop/hadoop-3.0.0/etc/hadoop/core-site.xml 修改
<configuration>
<!-- 指定HDFS老大(namenode)的通信地址 -->
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
<!-- 指定hadoop運行時產生文件的存儲路徑 -->
<property>
<name>hadoop.tmp.dir</name>
<value>/opt/hadoop/tmp</value>
</property>
</configuration>
7. vim /opt/hadoop/hadoop-3.0.0/etc/hadoop/hdfs-site.xml 修改增加以下內容
<configuration>
<property>
<name>dfs.name.dir</name>
<value>/opt/hadoop/hdfs/name</value>
<description>namenode上存儲hdfs名字空間元數據 </description>
</property>
<property>
<name>dfs.data.dir</name>
<value>/opt/hadoop/hdfs/data</value>
<description>datanode上數據塊的物理存儲位置</description>
</property>
<!-- 設置hdfs副本數量 -->
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
8. SSH 設置免密碼登錄
ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
chmod 0600 ~/.ssh/authorized_keys
9. 啓動命令
9.1 初始化
cd /opt/hadoop/hadoop-3.0.0
./bin/hdfs namenode -format
9.2 啓動命令
./sbin/start-dfs.sh
9.3 停止命令
./sbin/stop-dfs.sh
錯誤處理
Starting namenodes on [localhost]
ERROR: Attempting to operate on hdfs namenode as root
ERROR: but there is no HDFS_NAMENODE_USER defined. Aborting operation.
Starting datanodes
ERROR: Attempting to operate on hdfs datanode as root
ERROR: but there is no HDFS_DATANODE_USER defined. Aborting operation.
Starting secondary namenodes [bogon]
ERROR: Attempting to operate on hdfs secondarynamenode as root
ERROR: but there is no HDFS_SECONDARYNAMENODE_USER defined. Aborting operation.
處理1
$ vim sbin/start-dfs.sh
$ vim sbin/stop-dfs.sh
兩處增加以下內容
HDFS_DATANODE_USER=root
HADOOP_SECURE_DN_USER=hdfs
HDFS_NAMENODE_USER=root
HDFS_SECONDARYNAMENODE_USER=root
處理2
$ vim sbin/start-yarn.sh
$ vim sbin/stop-yarn.sh
兩處增加以下內容
YARN_RESOURCEMANAGER_USER=root
HADOOP_SECURE_DN_USER=yarn
YARN_NODEMANAGER_USER=root
10. 驗證安裝
http://192.168.50.48:9870/dfshealth.html#tab-overview
http://blog.csdn.net/cafebar123/article/details/73500014
相關下載
hive下載地址
http://mirrors.hust.edu.cn/apache/hive/stable-2/apache-hive-2.3.2-bin.tar.gz
hadoop下載地址
https://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-3.0.0/hadoop-3.0.0.tar.gz
1. hive安裝目錄 /opt/hive/apache-hive-2.3.2-bin
2. hadoop安裝目錄 /opt/hadoop/hadoop-3.0.0
3. JDK安裝目錄 /usr/java/jdk1.8.0_65
4. 環境變量配置
export JAVA_HOME=/usr/java/jdk1.8.0_65
export HADOOP_HOME=/opt/hadoop/hadoop-3.0.0
export HADOOP_CONF_DIR=${HADOOP_HOME}/etc/hadoop
export HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_HOME}/lib/native
export HADOOP_OPTS="-Djava.library.path=${HADOOP_HOME}/lib"
export HIVE_HOME=/opt/hive/apache-hive-2.3.2-bin
export HIVE_CONF_DIR=${HIVE_HOME}/conf
export CLASS_PATH=.:${JAVA_HOME}/lib:${HIVE_HOME}/lib:$CLASS_PATH
export PATH=.:${JAVA_HOME}/bin:${HADOOP_HOME}/bin:${HADOOP_HOME}/sbin:${HIVE_HOME}/bin:$PATH
5. 讓環境變量生效
source /etc/profile
6. vim /opt/hadoop/hadoop-3.0.0/etc/hadoop/core-site.xml 修改
<configuration>
<!-- 指定HDFS老大(namenode)的通信地址 -->
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
<!-- 指定hadoop運行時產生文件的存儲路徑 -->
<property>
<name>hadoop.tmp.dir</name>
<value>/opt/hadoop/tmp</value>
</property>
</configuration>
7. vim /opt/hadoop/hadoop-3.0.0/etc/hadoop/hdfs-site.xml 修改增加以下內容
<configuration>
<property>
<name>dfs.name.dir</name>
<value>/opt/hadoop/hdfs/name</value>
<description>namenode上存儲hdfs名字空間元數據 </description>
</property>
<property>
<name>dfs.data.dir</name>
<value>/opt/hadoop/hdfs/data</value>
<description>datanode上數據塊的物理存儲位置</description>
</property>
<!-- 設置hdfs副本數量 -->
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
8. SSH 設置免密碼登錄
ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
chmod 0600 ~/.ssh/authorized_keys
9. 啓動命令
9.1 初始化
cd /opt/hadoop/hadoop-3.0.0
./bin/hdfs namenode -format
9.2 啓動命令
./sbin/start-dfs.sh
9.3 停止命令
./sbin/stop-dfs.sh
錯誤處理
Starting namenodes on [localhost]
ERROR: Attempting to operate on hdfs namenode as root
ERROR: but there is no HDFS_NAMENODE_USER defined. Aborting operation.
Starting datanodes
ERROR: Attempting to operate on hdfs datanode as root
ERROR: but there is no HDFS_DATANODE_USER defined. Aborting operation.
Starting secondary namenodes [bogon]
ERROR: Attempting to operate on hdfs secondarynamenode as root
ERROR: but there is no HDFS_SECONDARYNAMENODE_USER defined. Aborting operation.
處理1
$ vim sbin/start-dfs.sh
$ vim sbin/stop-dfs.sh
兩處增加以下內容
HDFS_DATANODE_USER=root
HADOOP_SECURE_DN_USER=hdfs
HDFS_NAMENODE_USER=root
HDFS_SECONDARYNAMENODE_USER=root
處理2
$ vim sbin/start-yarn.sh
$ vim sbin/stop-yarn.sh
兩處增加以下內容
YARN_RESOURCEMANAGER_USER=root
HADOOP_SECURE_DN_USER=yarn
YARN_NODEMANAGER_USER=root
10. 驗證安裝
http://192.168.50.48:9870/dfshealth.html#tab-overview
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