（三）Hadoop HA高可用集群的配置-JDK的安装

深碍√TFBOYSˉ_ 2023-06-19 15:24 27阅读 0赞

**目录**

一、实验目的及要求：

实验目的：

实验要求：

二、环境要求：

三、步骤详解：

项目一：卸载原有JDK

项目二：安装配置JDK

项目三：同步JDK安装和配置

--------------------

# 一、实验目的及要求： #

## 实验目的： ##

掌握在完全分布模式的整合平台中快捷的进行JDK的安装和验证。

## 实验要求： ##

在集群中所有主机上完成JDK的安装

所有主机上JDK相关命令能够正常使用

# 二、环境要求： #

**（1）五台独立PC机或虚拟机；**

**（2）主机之间有有效的网络连接；**

**（3）每台主机内存2G以上，磁盘50G；**

**（4）所有主机上已安装CentOS 7.4\_64操作系统。**

**集群规划：**

** ** **主节点：    主机1   192.168.10.111   Cluster-01**

** ** **主节点：    主机2   192.168.10.112   Cluster-02**

** ** **其他节点： 主机3   192.168.10.113   Cluster-03**

** ** **其他节点： 主机4   192.168.10.114   Cluster-04**

**  其他节点： 主机5   192.168.10.115   Cluster-05**

**  选用JDK 8的131版本，软件包名jdk-8u131-linux-x64.tar.gz**

# 三、步骤详解： #

## **项目一：卸载原有JDK** ##

**检查每台主机是否有JDK JAVA 环境（五台主机执行相同的操作，在root用户下进行）**

**Cluster-01**

![20191207094121863.png][]

**Cluster-02**

![20191207094119317.png][]

**Cluster-03**

![20191207094121889.png][]

**Cluster-04**

![20191207094121893.png][]

**Cluster-05**

![20191207094121896.png][]

**注：检测到主机二有JAVA JDK环境，卸载原有的JAVA JDK 环境**

![20191207094121903.png][]

![20191207094117421.png][]

![20191207094121922.png][]

![20191207094121957.png][]

![20191207094121972.png][]

![20191207094118341.png][]

## **项目二：安装配置JDK** ##

**在安装JDK之前，在个人电脑上安装上传安装包的工具**

![20191207094236502.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70][]

**上载工具安装完成以后开始JDK的安装（在admin用户下进行，并且只需要在一台主机进行此步骤的操作）**

**1****：建立一个存放Hadoop软件包的文件夹setups，然后把所有安装包上传到setups目录内**

![20191207094236522.png][]

**2****：把所有安装包上传到setups目录内（打开安装好的上载工具，找到要上传的安装包，开始上传）**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 1][]

**3：新建会话**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 2][]

**4：连接**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 3][]

**5：导入安装包，并且选择上传到/home/admin/setups，开始上传**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 5][]

**6：在主机1下查看是否上传成功**

![20191207094236691.png][]

**7：在家目录下创建存放JDK相关文件的目录，将软件包解压到该目录下**

![20191207094236708.png][]

**8****：配置环境变量（进入vi~/.bassh\_profile）,配置完成后用$source~/.bash\_profile命令使新配置的环境变量立即生效**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 6][]

![2019120709423398.png][]

**9****：查看添加或修改的环境变量是否设置成功，以及环境变量的值是否正确**

![20191207094236742.png][]

**10****：验证JDK的安装配置是否成功**

![20191207094234168.png][]

## **项目三：同步JDK安装和配置** ##

**1****：将java目录和.bash\_profile文件发送给集群中所有其它主机，发送用户为admin**

![20191207094447380.png][]

![20191207094449963.png][]

![20191207094449981.png][]

![20191207094450207.png][]

**2****：在集群中每台主机查看是否拷贝成功**

**Cluster-02**

![20191207094450295.png][]

**Cluster-03**

![20191207094450383.png][]

**Cluster-04**

![20191207094450495.png][]

**Cluster-05**

![20191207094450503.png][]

**3****：查看添加或修改的环境变量是否设置成功，以及环境变量的值是否正确（查看之前用$source~/.bash\_profile命令使新配置的环境变量立即生效）**

**Cluster-02**

![20191207094450505.png][]

![20191207094446943.png][]

**Cluster-03**

![20191207094450577.png][]

![20191207094450613.png][]

**Cluster-04**

![20191207094450633.png][]

![20191207094450674.png][]

**Cluster-05**

![20191207094446192.png][]

![20191207094450693.png][]

**4****：验证JDK的安装配置是否成功**

**Cluster-02**

![20191207094450732.png][]

**Cluster-03**

![20191207094450770.png][]

**Cluster-04**

![20191207094448199.png][]

**Cluster-05**

![20191207094450794.png][]

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