What is the throughput? How does HDFS give great throughput?

Throughput is the measure of work done in a unit time. HDFS gives great throughput because of the followings:

• The HDFS depends on Write Once and Read Many Model, it improves the information coherency issues as the information written once can’t be altered and consequently, gives high throughput data access.
• In Hadoop, the calculation part is moved towards the information which decreases the system blockage and in this way, improves the overall system throughput.