公开(公告)号：US11366802B1

公开(公告)日：2022-06-21

申请号：US16586355

申请日：2019-09-27

Applicant: Amazon Technologies, Inc.

Inventor： Tengiz Kharatishvili ,  Alexandre Olegovich Vebitski ,  Justin Levandoski ,  Niket Goel ,  Xiang Peng ,  Kamal Kant Gupta ,  Xiaofeng Bao

IPC: G06F16/23 ,  G06F16/18

Abstract: Batch processing of undo log records may be performed for rolling back a database transaction. When a rollback operation for a database transaction is performed, undo log records from an undo log to rollback the database transaction are divided into different groups of undo log records. Different requests for the different undo log records are sent to a storage system to be performed. If a conflict is detected for an undo log record in a group, an indication of the conflicting undo log record may be provided to indicate the conflict. The group of undo log records may be resent with a request to reapply the undo log records in the group. When all groups have been identified as successfully completed, then the rollback operation may be considered completed.