With £18 billion (about US$30 billion) in revenue in 2014, BT is one of the largest telecommunications providers in the world. The company serves more than 18 million consumers and nearly three million businesses.
For BT, the key to achieving sustainable, profitable growth in today’s competitive landscape is its ability to broaden and deepen customer relationships. However, in its legacy environment, business client records were spread across multiple databases and needed to be reconciled and updated daily with Dun & Bradstreet data. With nearly one billion records being compared and reconciled daily, this legacy ETL platform, built on a traditional relational database, couldn’t keep up any more. At any given point in time, its business units were working with day-old data.
BT engaged Cloudera to install a production-ready Hadoop cluster that replaced the batch ETL application with MapReduce routines.
Today, this multi-tenant Hadoop environment provides a single, cost-effective infrastructure that enables BT to gain unified views of its data across its multiple business units. As BT moves to more sophisticated big data applications, it will use Apache Spark to combine batch, streaming, and interactive analytics, and Impala enables the business intelligence (BI) teams to perform SQL queries on the data.
Impact: 15x Increase in Data Velocity, Improved Services
Moving its ETL platform to Hadoop enabled BT to accelerate data velocity and provided substantial cost savings, delivering an ROI of 200-250% in one year.
Following the success of its ETL initiative, BT is now utilizing the Cloudera EDH to help deliver its broadband services.
- Accelerate data velocity
- Increase the volume of data ingested
- Provide business units a unified view of the data
- Apache Hadoop Platform: Cloudera Enterprise, Data Hub Edition
- Apache Hadoop Components: Apache Hive, Apache Pig, Apache Sentry, Apache Spark, Cloudera Manager, Cloudera Navigator, Impala
- Processes 5x more customer data
- Increased data velocity by 15x
- Delivered ROI of 200-250% in one year