Hadoop文件系统的绝对路径是什么

Question

I can access hadoop fs -ls / and I would like to know the absolute path of above /

I knew the / is a format looks like: "hdfs://host:port/" I also knew it is the value of the setting fs.defaultFS in core-site.xml .

However, I checked my core-site.xml , and did not find fs.defaultFS 's value. There must be a default value of fs.defaultFS , what is it?

Answer 1

You can find the default value in the file core-default.xml , it is usually file:///

Check core-site.xml for the value which is set by the user to override the default value which if present would something like

<property>
  <name>fs.defaultFS</name>
  <value>hdfs://host:port</value>
</property>

the value can even be a service configured.

It is the default prefix of the Hadoop file system, by default it might look for file:// which is your local file system.

Answer 2

您可以从命令行中找到默认 FS 值：

hdfs getconf -confKey fs.defaultFS