Apple Inc.

Jordan L Redner

Kazuhisa Yanagihara

Gregory Bjorn Vaughan

Gregory Robert Burns

Darrin Jewell

Jason R Thorpe

Lionel Gentil

Tom M Kim

Mufaddal Y Khumri

Lawrence W Chang

Hiren R Kotadia

Vipul Pandey

Gopi Rangaswamy

This application sets forth various techniques for monitoring a status of a service. According to some embodiments, a DNS server can implement a health check engine that monitors the status of the service in order to implement round-robin DNS among a plurality of availability zones. Each service instance for the service can include a monitoring agent configured to (1) monitor the status of the service instance, and (2) respond to health check messages received from the health check engine. The monitoring agent can also be configured to (1) collect statistics associated with one or more service dependencies of the service instance during a tracking window, (2) calculate at least one ratio based on the statistics collected during the tracking window, and (3) generate the status of the service instance by comparing the at least one ratio to a threshold value.

Health status monitoring for services provided by computing devices

The disclosed embodiments provide a system that delivers content to an electronic device, The system includes a content provider that obtains a public address of the electronic device from a first request for the content from the electronic device, Next, the content provider uses the public address to identify a local caching server on a local area network (LAN) of the electronic device. Finally, the content provider provides a local address of the local caching server to the electronic device, wherein the local address is used by the electronic device to obtain the content from the local caching server and the LAN without accessing a content delivery network (CDN) outside the LAN.

Delivering content to electronic devices using local caching servers

The disclosed embodiments provide a system that delivers content to an electronic device. The system includes a content provider that obtains a public address of the electronic device from a first request for the content from the electronic device. Next, the content provider uses the public address to identify a local caching server on a local area network (LAN) of the electronic device. Finally, the content provider provides a local address of the local caching server to the electronic device, wherein the local address is used by the electronic device to obtain the content from the local caching server and the LAN without accessing a content delivery network (CDN) outside the LAN.

The described embodiments electronically deliver content (e.g., digitally-encoded files) to an electronic device using groups of accounts. In the described embodiments, a content provider obtains a public address of the electronic device and at least one account identifier for the electronic device from a request for the content received from the electronic device. Next, the content provider uses the public address to identify a local caching server (LCS) on a local area network (LAN) to which the electronic device is connected and uses the account identifier to determine that an account associated with the LCS is associated with a group of accounts with which an account for the electronic device is also associated. The content provider then provides a local address of the LCS to the electronic device, which uses the local address to obtain the content from the LCS via the LAN without accessing a content delivery network outside the LAN.

Using groups of user accounts to deliver content to electronic devices using local caching servers

Scalable systems and methods for near real time processing of a substantial volume of event data streams are disclosed. A concurrent throughput receiver is coupled to an input of a processor for receiving the substantial volume of event data streams, and implementing substantially concurrent throughput of the substantial volume of event data streams. The systems and methods may provide for real time application monitoring, such as by aggregating information to a distributed cache from a plurality of entities, where the entities are structured in a nodal hierarchy, and summarizing to a summary database the information from the nodal hierarchy into summary level statistics for each of the nodes of the nodal hierarchy.

Growing community of inventors

Redwood City, CA, United States of America

Jordan L Redner