win7下搭建hadoop环境，出现ERROR namenode.NameNode: Failed to start namenode.

r囧r小猫 2023-07-01 05:25 11阅读 0赞

参考文章：

[https://blog.csdn.net/qq\_35535690/article/details/81976032][https_blog.csdn.net_qq_35535690_article_details_81976032]

hadoop环境已配置好，在使用hadoop namenode -format 命令启动运行的时候，报错

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![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21xaW5nbw_size_16_color_FFFFFF_t_70 1][]

将hdfs-site.xml文件中的namenode和datanode的路径改为

<configuration>
     <property>
            <name>dfs.replication</name>
            <value>1</value>
        </property>
        <property>
            <name>dfs.namenode.name.dir</name>
            <value>/Hadoop-2.7.7/hadoop-2.7.7/data/namenode</value>
        </property>
        <property>
            <name>dfs.datanode.data.dir</name>
            <value>/Hadoop-2.7.7/hadoop-2.7.7/data/datanode</value>
        </property>
    </configuration>

使用命令 hadoop namenode -format 重新运行即可。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21xaW5nbw_size_16_color_FFFFFF_t_70 2][]

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[https_blog.csdn.net_qq_35535690_article_details_81976032]: https://blog.csdn.net/qq_35535690/article/details/81976032
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