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:
Apr. 30, 2019
Filed:
Oct. 22, 2015
Maxta, Inc., Sunnyvale, CA (US);
Christian Czezatke, San Francisco, CA (US);
Raghu Shastry, San Jose, CA (US);
Maxta, Inc., Santa Clara, CA (US);
Abstract
A master node receives an instruction to create a checkpoint. The master node then tags new storage operations received by the master node after receiving the instruction and sends a request to a plurality of replica nodes of the data storage system to create the checkpoint. New operations that arrive to the data storage system are tagged. The new operations are tagged until acknowledgement messages are received from every replica node in response to the request. The acknowledgement message indicates successful creation of a checkpoint by a replica that sent the acknowledgment message. The master node determines whether all tagged operations have been completed and sends a commit checkpoint request once all tagged storage operations have been completed. After receiving a validation message from a replica node in response to the commit checkpoint request, the master node validates the checkpoint created by the replica node that sent the validation message.