How to Prepare for High Load in a Video Service?

Video services have planned and unplanned events when too many users come to them. Let's look at the approaches of different services taking into account their specifics – how do they cope with high load?  

We'll discuss all aspects of the problem:

• How people watch: viewer traffic of major events, reasons for the decline of streaming services, differences between Live and Video on Demand.
• Risks and preparation: how to assess the load, how real cases differ from the plan, how to prepare for the worst case scenario.
• What about hardware: speeding up signal delivery, repairing under load, DDoS protection.
• Team processes: how to prepare people on duty for incidents and not waste team resources.