Abstract: An origin server that is implemented within one or more devices within a third party virtual private cloud (VPC) is provided herein. Instead of communicating with various CDNs over a public network, the third party VPC may instead communicate with a managed VPC via a private network. Thus, no gateway, network address translation (NAT), or other such devices may be needed for the third party VPC and the managed VPC to communicate. Rather, a VPC identifier of the managed VPC and a VPC identifier of the third party VPC are used to pair the two VPCs. Once paired, a private route is set up such that points from the private address space of the third party VPC to the private address space of the managed VPC. The managed VPC then communicates directly with the various CDNs via a public network.

Abstract: An origin server that is implemented within one or more devices within a third party virtual private cloud (VPC) is provided herein. Instead of communicating with various CDNs over a public network, the third party VPC may instead communicate with a managed VPC via a private network. Thus, no gateway, network address translation (NAT), or other such devices may be needed for the third party VPC and the managed VPC to communicate. Rather, a VPC identifier of the managed VPC and a VPC identifier of the third party VPC are used to pair the two VPCs. Once paired, a private route is set up such that points from the private address space of the third party VPC to the private address space of the managed VPC. The managed VPC then communicates directly with the various CDNs via a public network.

Abstract: Methods, systems, and computer-readable media for real-time estimation of working sets are disclosed. A plurality of counters are initialized. The counters represent cardinality estimates of data elements accessed for respective time intervals. A request for data is received during the respective time intervals. One or more data elements are determined that are accessed in responding to the request. The counters are updated using the one or more data elements, such that one of the counters is increased by a quantity of the data elements that are accessed for the first time during the respective time interval. The working set estimates for the respective time intervals are determined using the counters.

Abstract: Each point-of-presence advertises the network addresses it hosts and the network addresses hosted by other points-of-presence. Each point-of-presence also announces its own network addresses at a higher degree of specificity than the other network addresses it is announcing. When a point-of-presence fails, packets routed to a network address hosted by that point-of-presence will be routed to one of the other points-of-presence announcing the same network address. When a point-of-presence is available, its more specific network address announcements prevents packets routed to a network address hosted by that point-of-presence from being routed to any other point-of-presence.

Abstract: The following description is directed to storing properties of requests to potentially block future requests having similar properties. In one example, a request can be received. A property of the request can be stored so that the property persists across an initialization sequence of a computer system. At least the property can be used to determine whether to block any future requests having similar properties.