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This article mainly explains "how Linux starts Hadoop". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how Linux starts Hadoop".

Hadoop is a distributed system infrastructure developed by the Apache Foundation. Users can develop distributed programs without knowing the underlying details of the distribution. Make full use of the power of the cluster for high-speed computing and storage.

Linux start Hadoop step 1

Enter the hadoop installation directory

Type sbin/start-dfs.sh: turn on hadoop

Step two

Enter jps

If you have the following information

:

4176 NameNode4274 DataNode4421 SecondaryNameNode4604 Jps

It indicates that it has been opened successfully.

If not, it will be troublesome. Enter the following command

Cd / tmp/hadoop-root/dfs/data/current

Rm VERSION

Then go to the hadoop directory

Input

Bin/hdfs namenode-format

Sbin/start-dfs.sh

Thank you for your reading, the above is the content of "how Linux starts Hadoop". After the study of this article, I believe you have a deeper understanding of how Linux starts Hadoop, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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