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:
Jan. 29, 2019
Filed:
Dec. 28, 2015
Tsinghua University, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
The present invention discloses a method for distributed transaction processing in a flash memory, including the following steps: S1. performing two-phase commit on a transaction, removing a state log record of a two-phase commit protocol, and internalizing as an operation on flash memory metadata in a transaction interface; S2. storing a temporary data object as a shadow version while performing the transaction, using a shadow mapping table to store the address of the shadow version or a state of a page, using page metadata to record transaction information, using a transaction metadata page to record a transaction state, and using a transaction state table to record an address of the transaction metadata page; and S3. when the coordinator or a participant fails, recovering the FTL mapping table, shadow mapping table, and transaction state table with the help of stored data and flash memory metadata. The present invention has the following advantages: the number of logs is reduced, and performance of transaction processing in a distributed flash memory environment is improved.