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.

Date of Patent:
Nov. 07, 2017

Filed:

Feb. 06, 2013
Applicant:

Quantcast Corporation, San Francisco, CA (US);

Inventors:

Silvius V. Rus, Orina, CA (US);

Thileepan Subramaniam, Mountain View, CA (US);

Assignee:

Quantcast Corporation, San Francisco, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 17/30 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30194 (2013.01); G06F 3/067 (2013.01); G06F 17/30584 (2013.01);
Abstract

A distributed storage system maintains multiple logically independent file systems. Each file system includes a data set stored by a distributed storage of the distributed storage system. During operation, access pattern levels for the multiple logically independent file systems are determined. Thereafter, the data sets included in the multiple logically independent file systems are redistributed across multiple storage devices of the distributed storage. In one aspect, redistribution of a particular data set is based at least in part on the particular file system including the particular data set and on the determined access pattern levels for the multiple logically independent file systems. In one implementation, redistribution is performed according to a uniform redistribution scheme. In another implementation, redistribution is performed according to a proportional distribution scheme.


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