Is there any way to access Hadoop web UI in linux?

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I have just started learning Hadoop. So, I installed Hadoop 2.7.3 by following a tutorial Digital ocean tutorial for installing Hadoop in stand-alone mode. After installing i run start-dfs.sh and all my daemons are up and running.

But when I try to access urls from my web browser, for example, localhost:50030 or 0.0.0.0:50030 I get the following error: Unable to connect.

Please somebody help! What should I do?

May 9, 2018 in Big Data Hadoop by coldcode
• 2,040 points
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1 answer to this question.

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In this case what you can do is just format the namenode:

$ bin/hdfs namenode -format

then start NameNode daemon and DataNode daemon:

$ sbin/start-dfs.sh
Browse the web interface for the NameNode; by default it is available at: NameNode - http://localhost:50070/

If you don't format the namenode, it won't start.

Hope this will help you.

answered May 9, 2018 by nitinrawat895
• 10,760 points

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