Hadoop dfs replicate

Question

Sorry guys,just a simple question but I cannot find exact question on google. The question about what\'s dfs.replication mean? If I made one file named filmdata.txt in hdfs,

Answer 1

The link provided by Praveen is now broken. Here is the updated link describing the parameter dfs.replication.

Refer Hadoop Cluster Setup. for more information on configuration parameters.

You may want to note that files can span multiple blocks and each block will be replicated number of times specified in dfs.replication (default value is 3). The size of such blocks is specified in the parameter dfs.block.size.