Distributed lock state synchronization method based on updating sequence

• Main Authors: ZHOU YONGLIANG, MA YUE, CHEN ZHENWEI, YU KAI, JIANG XU, LIU BINAN, WU SONG, LI BIN
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to a distributed lock state synchronization method based on an update sequence, which is mainly and technically characterized in that the update sequence is set on each slave node lock object, a master node maintains the record of the lock state held by each slave node, and the update sequence is set on each record; the slave node sends a locking request to the master node; the master node carries out locking processing according to the lock state of the request node and returns a locking success message, or sends an unlocking request to a conflict node holding a lock atpresent; the slave node performs unlocking processing according to the slave node lock state and returns an unlocking success message; the master node checks the current updating sequence of the conflict node lock state and tries to lock again; and the slave node checks the current updating sequence of the lock state and tries to lock again. The method is reasonable in design, can effectively maintain the consistency of t