haoop启动正常，但上不去网页hadoop102:9870

古城微笑少年丶 2023-09-23 15:58 88阅读 0赞

## haoop启动正常，但上不去网页hadoop102:9870 ##

> 症状如下:  
> hadoop启动正常，jps正常

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center][]

> 网页上不去

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center 1][]

> 查下cmd，ping不通

![在这里插入图片描述][20200814193833274.png_pic_center]

解决方法  
一、 先查hdfs

> **命令：**vim /opt/module/hadoop-3.1.3/etc/hadoop/hdfs.site.xml

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center 2]

> 二、查hosts，我就是在这出的问题

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center 3]

> 按格式添加映射

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center 4][]

> 病症解决！

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center 5]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoYW5nWGluWmFpQ2k_size_16_color_FFFFFF_t_70_pic_center 6]

**注意：**

**修改windows的主机映射文件****（hosts文件）**

**（1）如果操作系统是window7，可以直接修改**

（a）进入C:\\Windows\\System32\\drivers\\etc路径

（b）打开hosts文件并添加如下内容，然后保存

> 192.168.10.100 hadoop100
> 
> 192.168.10.101 hadoop101
> 
> 192.168.10.102 hadoop102
> 
> 192.168.10.103 hadoop103
> 
> 192.168.10.104 hadoop104
> 
> 192.168.10.105 hadoop105
> 
> 192.168.10.106 hadoop106
> 
> 192.168.10.107 hadoop107
> 
> 192.168.10.108 hadoop108

**（2）如果操作系统是window10，先拷贝出来，修改保存以后，再覆盖即可**

（a）进入C:\\Windows\\System32\\drivers\\etc路径

（b）拷贝hosts文件到桌面

（c）打开桌面hosts文件并添加如下内容

（d）将桌面hosts文件覆盖C:\\Windows\\System32\\drivers\\etc路径hosts文件

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[20200814193833274.png_pic_center]: https://img-blog.csdnimg.cn/20200814193833274.png#pic_center
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