Making changes to Google's search infrastructure is akin to 'changing the tires on a car while you're going at 60 down the freeway,' according to Urs Holzle, who oversees the company's massive data center operations. In a Q-and-A with Data Center Knowledge, Holzle discusses Google's infrastructure, how it has engineered its system to route around hardware failures, and how it responds when something goes awry. These updates usually go unnoticed, but during system maintenance last month a software bug triggered an outage for Gmail.

Source:→ Slashdot