At one employer most customers would opt-in to upload their system logs, and company would analyze to anticipate problems for preventive maintenance. The resul

At one employer most customers would opt-in to upload their system logs, and company would analyze to anticipate problems for preventive maintenance. The result was a tens of terabytes a day Niagara of data. When I left they were in early stages of Hadoop because ordinary parse/analyze was starting to fall behind.