It took six hours and two minutes to sort 1PB (10 trillion 100-byte records) on 4,000 computers. We're not aware of any other sorting experiment at this scale and are obviously very excited to be able to process so much data so quickly.

Google sorts 1PB in 6 hours and 2 minutes [googleblog.blogspot.com]

Quite a feat to perform. Any ideas on when it will apply to the data pushes? Do you think the data pushes will happen more often, more updates?