ln -s /hadoop/hadoop-2.7.7/etc/hadoop/core-site.xml /hadoop/hbase-2.2.2/conf/core-site.xml
时间: 2023-12-07 18:06:34 浏览: 49
这个命令是在 Linux 系统中创建一个软链接,将 Hadoop 的 core-site.xml 文件链接到 HBase 的 conf 目录下。这样做的目的是让 HBase 也能够读取 Hadoop 的配置文件,以便它们能够协同工作。具体来说,这个软链接将 Hadoop 的 core-site.xml 文件映射到 HBase 的 conf 目录下,使得 HBase 能够读取 Hadoop 中定义的文件系统和其他相关配置。
相关问题
ln -s /opt/module/hadoop-3.3.4/etc/hadoop/hdfs-site.xml /opt/module/hbase- 2.4.17/conf/hdfs-site.xml ln: 目标"2.4.17/conf/hdfs-site.xml" 不是目录
这个错误提示是因为你试图将 `/opt/module/hadoop-3.3.4/etc/hadoop/hdfs-site.xml` 软链接到 `/opt/module/hbase-2.4.17/conf/hdfs-site.xml`,但是 `/opt/module/hbase-2.4.17/conf/hdfs-site.xml` 已经存在且是一个文件,不是目录。
你可以尝试先删除 `/opt/module/hbase-2.4.17/conf/hdfs-site.xml` 这个文件,然后再执行软链接命令。或者你可以将软链接的目标改为一个不存在的文件名,比如:
```
ln -s /opt/module/hadoop-3.3.4/etc/hadoop/hdfs-site.xml /opt/module/hbase-2.4.17/conf/hdfs-site.xml.link
```
这样就可以创建一个名为 `hdfs-site.xml.link` 的软链接了。
./bin/hdfs dfs -put ./etc/hadoop/*.xml input
As an AI language model, I don't have access to your local file system or Hadoop cluster. However, I can explain the meaning of the command you have provided.
The command "./bin/hdfs dfs -put ./etc/hadoop/*.xml input" is used to copy all the XML files located in the "./etc/hadoop/" directory to the "input" directory in HDFS (Hadoop Distributed File System).
Here is the breakdown of the command:
- "./bin/hdfs": This specifies the path to the Hadoop Distributed File System command-line interface binary file.
- "dfs": This is the subcommand used to interact with the HDFS.
- "-put": This is the command used to copy files from the local file system to HDFS.
- "./etc/hadoop/*.xml": This specifies the path to all the XML files located in the "./etc/hadoop/" directory. The "*" character is used to match any file name with the ".xml" extension.
- "input": This specifies the destination directory in HDFS where the files will be copied to.
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