How Hadoop distributes block writes into HDFS

Question

My Hadoop cluster has the following configurations: 12 slave nodes, a block size set to 64MB, and a replication factor of three.
How the Hadoop Framework distributes block writes into HDFS from a Reducer outputting a 150MB file?

Can someone help please?

Answer 1

So, what happens is the slave node on which the Reducer runs gets the first copy of every block written. Other block replicas will be placed on other nodes.