Question

Block Management Master keeps track of ___.

Answer 1

One square can store just a single document, yet one record can be put away on various squares (in case it's size is greater then the measure of the square).

So the Namenode will just guide one record at most per square.

Note that the plate space will be utilized for genuine document measure and not for whole square size, that is the reason having numerous little records may have affect on the memory of the Namenode.