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- SK telecom is the largest mobile carrier in South Korea.
- In overall, Tajo is used to analysis logs collected from our cellular network.
- We replaced some commercial data warehouse system by Tajo.
- We use Tajo for ETL and OLAP workloads.
- We use 2 nodes for Tajo Master and 51 nodes for Tajo workers.
For only ETL, we process over 120 SQL queries that process over 4TB per day.
- We also submit more than 500 different queries through some integrated OLAP tool per day.
TicketMonster (http://www.ticketmonster.co.kr)
- TicketMonster is the fastest growing e-commerce company in South Korea.
- Currently, Tajo is used to analysis logs collected from the service.
- We use a Tajo cluster of 50 nodes to process about 100 SQL queries over 5TB per day