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:
Feb. 25, 2014
Filed:
Jan. 07, 2009
Matthias Brantner, Glattbrugg, CH;
David Graf, Zurich, CH;
Donald Kossmann, Zurich, CH;
Tim Kraska, Zurich, CH;
Matthias Brantner, Glattbrugg, CH;
David Graf, Zurich, CH;
Donald Kossmann, Zurich, CH;
Tim Kraska, Zurich, CH;
28msec Inc., Fremont, CA (US);
Abstract
A method for updating a block on disk is provided. The method involves one or more clients committing log records to queues corresponding to blocks. The method further involves checkpointing, which includes obtaining a flushing lock on the queue by a client, receiving log records from the queue, applying the log records to a block on disk, and deleting the log records from the queue. A block on disk may be updated by first applying the log records from a queue to a locally cached version of the block corresponding to the queue. The locally cached version may then be stored on the disk replacing the original block on disk or being stored as a new version of the original block.