HDFS报错：Couldn‘t preview the file.

问题：

最近出现的一次HDFS报错问题，查看一个文件是报错Couldn't preview the file.

造成原因

解决方法

1. 在hdfs-site.xml配置如下依赖

    <property>
        <name>dfs.webhdfs.enabled</name>
        <value>true</value>
    </property>

我的是

C:\Windows\System32\drivers\etc\hosts

192.168.137.121 hadoop121.hadoop.com hadoop121
192.168.137.122 hadoop122.hadoop.com hadoop122
192.168.137.123 hadoop123.hadoop.com hadoop123

etc/hosts

192.168.137.121 hadoop121.hadoop.com hadoop121
192.168.137.122 hadoop122.hadoop.com hadoop122
192.168.137.123 hadoop123.hadoop.com hadoop123

解决完成：