Distributed data mirroring method and storage data nodes
A distributed data and data storage technology, applied in the field of network storage, can solve problems such as inconvenient expansion of centralized systems, inoperability of mirroring systems, and performance bottlenecks
Active Publication Date: 2016-11-23
阿里巴巴(成都)软件技术有限公司
View PDF3 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In this scheme, whether it is the primary database or the secondary database, if one of the databases fails, the entire mirroring system cannot operate, and the mirroring operation can only be performed after the database is restored.
At the same time, if dealing with massive data access, the centralized system is easy to cause performance bottlenecks due to inconvenient expansion. At this time, additional mirroring operations need to be added, which will bring greater pressure to the system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The technical solutions of the present application will be described in further detail below with reference to the drawings and embodiments.
[0023] This application uses the distributed file system (DFS) as the data center, the distributed file system is composed of multiple storage data nodes (DataServer) and a master control node (NameServer), and the distributed mirror system is composed of at least two distributed file systems , therefore, any storage data node in a data center DFS system can be used as the data master server in the mirroring system to perform mirroring to any storage data node in multiple data center DFS systems as a backup.
[0024] Such as figure 1 As shown in , it is an architecture diagram of the distributed mirroring system applied by the distributed data mirroring method of the present application. The figure shows that the distributed mirroring system is composed of two data center DFS systems, and the data mirroring of client user reques...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a distributed data mirroring method and a data mirroring device. The distributed data mirroring method comprises the steps that a data operation request is received, the data is subjected to an operation, corresponding to the data operation request, the data is subjected to a back-up operation, corresponding to the data operation request, and a logic file name is generated; a mirroring record containing the logic file name, a mirroring strategy and an operation type is generated; a list of addresses of destination data storage nodes to be mirrored is obtained from master control nodes of mirroring destination distributed file systems determine by file area information; and on the basis of the mirroring strategy, the data on the destination data storage nodes is subjected to the operation corresponding to the data operation request according to the operation type in the mirroring record. Therefore, according to the distributed data mirroring method and the data storage node, the data mirroring is carried out by utilizing distributed file systems as the data centers, available data storage nodes are selected for carrying out data mirroring, and the high reliability of the mirroring system is realized.
Description
technical field [0001] The present application relates to the field of network storage, in particular to a distributed data mirroring method and storage data nodes. Background technique [0002] With the continuous development of the Internet, the data on the Internet has grown explosively, and at the same time, the demand for data access capabilities has also continued to grow. And these massive data are easy to lose data due to system failure and disk damage. Therefore, how to ensure the security of massive data has become the focus of attention. [0003] Most of the current remote mirroring systems adopt a centralized method. For example, mirroring between databases, this typical centralized mirroring system scheme adopts a primary and secondary structure, that is, one database corresponds to another database, and one of the two databases is the primary database, which is mainly responsible for synchronizing data To another database; the other is an auxiliary database,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 段兵朱国云
Owner 阿里巴巴(成都)软件技术有限公司