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Method and apparatus for reclaiming garbage object data

An object data and object technology, applied in the field of garbage object data recovery, can solve the problem of inability to accurately record the object data data identification, inability to accurately determine the garbage object data of the data storage system, object semantic interface and service layer inability to perceive object metadata preservation exceptions And other issues

Active Publication Date: 2021-12-14
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the existing solutions, when the storage system fails, the object semantic interface and service layer cannot perceive the exception of object metadata preservation, or, even if they perceive the exception of object metadata preservation, they cannot accurately record and preserve the abnormal object metadata The data identification of the corresponding object data makes it impossible for the object semantic interface and service layer to accurately determine the garbage object data that appears in the data storage system

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  • Method and apparatus for reclaiming garbage object data
  • Method and apparatus for reclaiming garbage object data

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Embodiment Construction

[0036] The technical solution in this application will be described below with reference to the accompanying drawings.

[0037] In an object storage system, object data and object metadata are usually stored separately, that is, object data is stored in the data storage system, and object metadata is stored in the metadata storage system. It should be understood that in an object storage system, an object (object) may specifically include object data and object metadata.

[0038] In order to facilitate the understanding of the method for recycling garbage object data in the embodiment of the present application, the following first combines figure 1 Briefly introduce the architecture of the object storage system and the read and write process of the object storage system.

[0039] like figure 1 As shown, an object storage system (Object-Based Storage System, OBS) consists of an object semantic interface and a service layer, a data storage system (also called a data storage s...

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Abstract

The present application provides a method and apparatus for reclaiming garbage object data. The method includes: obtaining object data; obtaining the object identifier of the object data from the first field of the object data; querying the object metadata corresponding to the object data in the metadata storage system according to the object identifier of the object data; in the metadata storage system If the object metadata is not found, it is determined that the object data is garbage object data; when the object metadata is queried in the metadata storage system, and the object data does not match the object metadata, it is determined that the object data is garbage object data ; When the object metadata is queried in the metadata storage system, and the object data matches the object metadata of the object data, determine that the object data is non-garbage object data. The present application can improve the accuracy and reliability when used to recycle garbage object data.

Description

technical field [0001] The present application relates to the technical field of garbage object data collection, and more particularly, to a method and device for recycling garbage object data. Background technique [0002] Object storage systems usually save data by separating object data and object metadata, that is, object data is saved in the data storage system, and object metadata is saved in the metadata storage system. If an exception occurs during the process of saving object metadata, then garbage object data will be formed in the data storage system. For example, the first object data has been saved in the data storage system, but an exception occurs during the process of saving the first object metadata corresponding to the first object data, resulting in the first object metadata not being saved in the metadata storage system or If an error occurs when saving the metadata of the first object to the metadata storage system, then it can be determined that the fir...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/215
CPCG06F16/162G06F16/174
Inventor 李鹏
Owner HUAWEI TECH CO LTD