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:
Jun. 14, 2016
Filed:
Feb. 23, 2005
Nookala Sunder Phani Kumar, Pune, IN;
Joseph Michael Maionchi, Vallejo, CA (US);
Edwin F. Menze, Iii, Lake Oswego, OR (US);
Dheer Moghe, Sunnyvale, CA (US);
Anurag Agarwal, Sunnyvale, CA (US);
Jobi Ariyamannil, San Jose, CA (US);
Craig Keatley Harmer, San Francisco, CA (US);
Nookala Sunder Phani Kumar, Pune, IN;
Joseph Michael Maionchi, Vallejo, CA (US);
Edwin F. Menze, III, Lake Oswego, OR (US);
Dheer Moghe, Sunnyvale, CA (US);
Anurag Agarwal, Sunnyvale, CA (US);
Jobi Ariyamannil, San Jose, CA (US);
Craig Keatley Harmer, San Francisco, CA (US);
Veritas Technologies LLC, Mountain View, CA (US);
Abstract
Various methods and systems for implementing a file change log in a distributed file system are disclosed. In one embodiment, a method involves operating a distributed file system that presents a namespace and maintaining a file change log for the namespace. Operating the distributed file system involves executing an instance of a file system on each of several nodes. Maintaining the file change log can involve maintaining a single file change log for the namespace. Updates to the single file change log can be handled by a primary node or controlled using a locking mechanism. Alternatively, several private file change logs (e.g., one per node) can be maintained, and these private file change logs can be merged into a single file change log (e.g., by a primary node).