公开(公告)号：US12130796B2

公开(公告)日：2024-10-29

申请号：US17535832

申请日：2021-11-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ronen Grosman ,  Emad Boctor ,  Ping Chen ,  Chaoyi Kuang ,  Yuk Kuen Chan ,  Hoi Ieng Lao

IPC: G06F16/23 ,  G06F16/21 ,  G06F16/215

CPC classification number: G06F16/2308 ,  G06F16/215 ,  G06F16/219 ,  G06F16/2386

Abstract: A method and system for implementing concurrency control in a database system includes receiving a request from a node for handling by a GTM. Registering the request in a slot in a tracking array where each of the slots represents one of the requests for handling by the GTM. A slot is acquired, and a segment of the tracking array is scanned to determine a batch of pending requests. The batch is used to produce an aggregate request and the aggregate request includes an aggregate increment of a total number of commit requests of the batch. The aggregate request is sent to the GTM using one of a plurality of pre-established connections. A response is received from the GTM that includes a current value of an incremented timestamp. The incremented timestamp is distributed to the requests of the batch and the lock is released.