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in Big Data Hadoop & Spark by (11.9k points)

i am new to learning hdfs and have single node hadoop(version 2.2.0) set up over centos box.

after start-all command i am trying to run some of the hdfs commands but below mentioned is not working.

    bin/hadoop fs -lsr hdfs://localhost:9000/tmp/hadoop-root/dfs/name

while this command is working

    bin/hadoop fs -lsr file:///tmp/hadoop-root/dfs/name

this is my core-site.xml file

<configuration>

 <property>

         <name>fs.default.name</name>

         <value>hdfs://localhost:9000</value>

     </property>

</configuration>

mapred-site.xml file

<configuration>

     <property>

         <name>mapred.job.tracker</name>

         <value>localhost:9001</value>

     </property>

</configuration>

hdfs-site.xml file

<configuration>

<property>

         <name>dfs.replication</name>

         <value>1</value>

     </property>

</configuration>

telnet with localhost 9000 is working while telnet with x.x.x.x 9000 is not working also.

Can anyone tell me pls. where is my mistake ?

1 Answer

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by (31.6k points)

HDFS is a filesystem, so use it as a filesystem:

hadoop fs -ls /

hadoop fs -ls /some/path/inside/hdfs

I also suggest you to use only fully qualified names for hosts in your configuration files. Simply said, don't use localhost.

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