The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
Jun. 20, 2012
Long X. Nguyen, Seattle, WA (US);
Allan H. Vermeulen, Seattle, WA (US);
Long X. Nguyen, Seattle, WA (US);
Allan H. Vermeulen, Seattle, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Methods and apparatus for versioned read-only snapshots of shared state for distributed applications are disclosed. A distributed system includes a state manager implementing programmatic interfaces defining caching operations. In response to a cache setup request from a process of a distributed client application, the state manager designates elements of a registry as a cache data set, and provides the client process a reference to an asynchronously updated cache object. The state manager initiates a sequence of asynchronous update notifications to the cache object, wherein each notification includes (a) updated contents of an element of the cache data set, and (b) a cache version identifier based at least in part on a registry logical timestamp value indicative of a time at which the element was updated.