Post 6 – Rack Awareness in HDFS
Rack Awareness protects your highly crucial data from the forces of nature. What is a rack in Hadoop ? A Rack is a collection of servers (usually 10 or more) that are: ➡ Datanodes in a rack are physically close to each other(within the same data center or network switch) ➡ The intra-rack Datanodes are…