How Big Data Analysis helped increase Walmart$$s Sales turnover?

With more than $245$ million customers visiting $10,900$ stores and with $10$ active websites

across the globe, Walmart is a name to reckon with for business success as it is one of the

world$$s largest retailers when it comes to revenue $-$ operating in multiple countries across the

globe. There are several retailers who want to come close to Walmart$$s success. The big box

retailer Walmart has many interesting lessons powered by big data and Hadoop technology

that retailers can explore. Walmart tells its customers what to buy and its using its huge

collection of data to make it a reality prediction. Discuss how Walmart can benefit from using Hadoop technology and outline the drawbacks they

can come across.