Cloud computing, distributed big data, hadoop, hands-on, road 7, hadoop graphic training course: Testing the specific working mechanism and process of Replication through the heartbeat of HDFS

This lecture focuses on the use of HDFS command line tools to operate hadoop distributed clusters, mainly through the experiment to configure the heartbeat of the hdfs-site.xml file to test the specific work and process of replication.

Use HDFS heartbeat to test the specific working mechanism of replication and the PDF version of the process.Here.

 

Wang Jialin's complete release directory of "cloud computing distributed Big Data hadoop hands-on path"

 

Cloud computing distributed Big Data practical technology hadoop exchange group: 312494188 Cloud computing practices will be released in the group every day. welcome to join us!

 

In the sixth lecture on hadoop graphic training course by Wang Jialin: In the initial experience of operating hadoop distributed clusters using HDFS command line tools, we configured hadoop. main this host's hdfs-site.xml this profile's "DFS. the value of replication is 2:

 

When we upload a file, the file will save two copies: