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:
Nov. 15, 2016
Filed:
Mar. 31, 2014
Amazon Technologies, Inc., Reno, NV (US);
Joshua Samuel Hendrickson, Quncy, MA (US);
Matti Juhani Oikarinen, Wilmington, MA (US);
Alex Haugland, Cambridge, MA (US);
Pradeep Vincent, Kenmore, MA (US);
Matteo Frigo, Acton, MA (US);
Xiaobin Wu, Acton, MA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
A directed acyclic graph (DAG) is generated to represent a namespace of a directory. In response to a request to create a new object with a specified name, a hash value bit sequence is computed for the name. A plurality of levels of the DAG are navigated using successive subsequences of the bit sequence to identify a candidate node for storing a new entry corresponding to the specified name. If the candidate node meets a split criterion, the new entry and at least a selected subset of entries of the candidate node's list of entries are distributed among a plurality of DAG nodes, including at least one new DAG node, using respective bit sequences obtained by applying the hash function for each distributed entry.