Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about the Hadoop-related startup commands and interfaces. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

1. Format NameNode: hadoop namenode-format

2. Hdfs cluster starts on a single node: hadoop-daemon.sh start namenode; hadoop-daemon.sh start datanode

Hadoop-daemon.sh stop namenode; hadoop-daemon.sh stop datanode

Hadoop-daemon.sh start secondarynamenode; hadoop-daemon.sh stop secondarynamenode

3. View the HDFS interface on the web: http://hadoop125:50070/dfshealth.html#tab-overview; http://hadoop127:50090/status.html

4. Yarn cluster starts on a single node: yarn-daemon.sh start resourcemanager;yarn-daemon.sh start nodemanager

Yarn-daemon.sh stop resourcemanager;yarn-daemon.sh stop nodemanager

Mr-jobhistory-daemon.sh start historyserver

5. View the YARN interface on the web: http://hadoop127:8088/cluster; http://hadoop125:19888/jobhistory

6. Cluster: start-dfs.sh; start-yarn.sh; stop-dfs.sh; stop-yarn.sh

These are the Hadoop-related startup commands and interfaces shared by the editor. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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