公开(公告)号：US12216592B1

公开(公告)日：2025-02-04

申请号：US18478349

申请日：2023-09-29

Applicant: Amazon Technologies, Inc.

Inventor： Barak Pinhas ,  Hen Guetta ,  Alex Friedman

IPC: G06F12/14 ,  G06F12/12

Abstract: A thread of a storage server determines that a command to modify a reservation record which comprises access permissions of an object stored at the server has been received. A version of the record is stored in an in-memory cache. The thread acquires a first lock associated with the record in exclusive mode, and a second lock in shared mode. The thread reads the cached version, constructs a modified version indicated in the command, and releases the second lock without updating the cache. After entries representing the modified version are stored in an operations journal, the thread acquires the second lock in exclusive mode and updates the cache. The thread then releases both locks. An indication that the command has succeeded is provided without verifying that the second version is stored at a metadata store.

公开(公告)号：US12271638B1

公开(公告)日：2025-04-08

申请号：US18414210

申请日：2024-01-16

Applicant: Amazon Technologies, Inc.

Inventor： Barak Pinhas ,  Swapnil Vinay Dinkar ,  Andrew Boyer ,  Yonatan Divinsky ,  Alex Friedman

IPC: G06F3/06

Abstract: A storage object and an associated permissions record is stored at a storage server. The permissions record indicates that some storage consumers are not permitted to perform a type of I/O operation on the storage object. In response to detecting that an event of a deletion triggering type with respect to the records, a modified version of the permissions record is stored at the server, indicating that the storage consumers remain prohibited from performing the I/O operations. In response to receiving a command to perform a particular I/O at the server after the modified version has been stored, the modified version is used to process the command.