What is the best way to accomplish this?

To process input key-value pairs, your mapper needs to lead a 512 MB data file in memory.

What is the best way to accomplish this?
A . Serialize the data file, insert in it the JobConf object, and read the data into memory in the configure method of the mapper.
B . Place the data file in the DistributedCache and read the data into memory in the map method of the mapper.
C . Place the data file in the DataCache and read the data into memory in the configure method of the mapper.
D . Place the data file in the DistributedCache and read the data into memory in the configure method of the mapper.

View Answer

Answer: C