Title:
METHOD AND SYSTEM FOR RECOVERING MASTER METADATA IN REAL TIME, AND DEVICE AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/257337
Kind Code:
A1
Abstract:
Disclosed in the present application are a method and system for recovering master metadata in real time, and a device and a storage medium. The method comprises: creating a free_block_list, an allocated_block_list and a first_meta_block_list; in response to damage to any read master metadata block, reading a user_block_list and a segment_block_list of each segment to which the master metadata block belongs, and storing data of a read user data block and a read segment metadata block in the allocated_block_list and the first_meta_block_list; marking, as free, each data block that is recorded in a master_block_list, and storing, in the free_block_list and a master_free_block_list corresponding to a master metadata block, each data block that is recorded in the master_block_list; and selecting a free data block from an intersection of the free_block_list and the master_free_block_list and allocating the free data block to newly-generated master metadata, and then recording the identifier of the free data block in the master_block_list.
Inventors:
LIU WENGUO (CN)
WANG YANQING (CN)
WANG YANQING (CN)
Application Number:
PCT/CN2021/127407
Publication Date:
December 15, 2022
Filing Date:
October 29, 2021
Export Citation:
Assignee:
INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO LTD (CN)
International Classes:
G06F11/14; G06F16/22
Foreign References:
| CN113254273A | 2021-08-13 | |||
| CN109683825A | 2019-04-26 | |||
| CN103488710A | 2014-01-01 | |||
| US20020062422A1 | 2002-05-23 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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