Ticketmaster has been using Splunk for around 5 years to gain visibility into their operations and customer usage. They ingest over 1.6TB of log data per day from their various systems like web servers, databases, and applications. Splunk is used for monitoring systems and applications, troubleshooting issues, and providing analytics on customer search patterns and event demand. It has helped Ticketmaster improve customer service, protect against ticket brokers, and increase revenue by better understanding concert demand.