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Over the course of six weeks in the summer of 2014, Market Basket employees, joined by their customers, protested against the firing of their beloved CEO. They risked their jobs, their livelihoods, and they brought the business to a halt. At a time when we see so much division between the CEOs who represent the top 1% and the workers, who represent by the bottom 99%, this level of support for a CEO got the attention of the entire country. Arthur Demoulas, he stands for valuing people. He always says we are in the people business first, grocery business second. And when the ownership changed, you started asking the questions, what's going to happen with our benefits? What's going to happen with our pay? And when you start taking away that factor of focusing on people, the entire business model starts to fall apart. The workers were fighting for a business model that works for everyone-- for them, for their customers, and for their shareholders. We saw a number of c...

And if I keel over and fall down, somebody call the ambulance. OK, what we're going to do today is, this is actually the last lecture on a topic that some might consider part of networking, but some might consider part of a more general topic of distributed systems. So it actually forms a bridge between the stuff we learned about in networking, and what we're going to see from Wednesday over the next six or seven lectures of the class, and of the associated recitations having to do with fault tolerant, reliable computing. And most of the interesting aspects of what we're going to talk about involve techniques in fault tolerance, and more techniques have to do with redundancy and replication. And DNS, the domain name system, which is the system we're going to look at today in the context of distributed naming is a bridge because on the one hand it covers some of the aspects of networking that we talked about. On the other hand, it shows an example of how yo...