Unlock instant, AI-driven research and patent intelligence for your innovation.

Data migration method, system, device and product

A technology for data to be migrated, applied in the computer field, it can solve the problems of transaction interruption, downtime, high performance requirements, etc., and achieve the effect of non-disruptive migration

Active Publication Date: 2022-03-01
ALIBABA CLOUD COMPUTING LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the online migration process, there may be problems with downtime or transaction interruption caused by the migration
Although there are some migration solutions that can achieve online migration without interrupting transactions, the migration process requires high performance of the distributed database system and will cause large data overhead

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data migration method, system, device and product
  • Data migration method, system, device and product
  • Data migration method, system, device and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In the existing technology, with the development of distributed database technology, the distributed database system has become more and more complex, and any change to any node will affect the stability of the overall system. However, as the actual application requirements increase, the problems to be solved also increase. For example, if you need to solve the load balancing problem, you need to migrate the database nodes. In order to reduce the adverse impact on the normal operation of the distributed database system during data migration, online migration is usually adopted.

[0039] There are many existing online migration solutions, such as Squall, MgCrab, ProRea and other solutions. Various problems exist in the online migration process using these solutions. For example, Squall relies on the lock of each data partition to ensure the consistency of migrated data, which will cause relatively large synchronization overhead; MgCrab is limited to Deterministic datab...

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

No PUM Login to View More

Abstract

Embodiments of the present application provide data migration methods, systems, devices, and products. The method includes: transmitting the data information of the object to be migrated on the first node at the first moment and the incremental data related to the object to be migrated after the first moment to the second node, so that the second node can migrate to the object. When the migration progress parameters of the object to be migrated meet the preset conditions, the dual-running working mode is started; the uncommitted transaction on the first node for the object to be migrated will transmit the incremental data generated during execution to the second node; if there is a transaction for the object to be migrated The second node transaction of the object, routes the second node transaction to the second node. The technical solution provided by this application starts the dual operation mode, the first node can continue to execute the uncommitted first node transaction for the object to be migrated, and route the second node transaction for the object to be migrated to the second node The corresponding target object is executed, and the online uninterrupted migration of the object to be migrated is realized.

Description

technical field [0001] This application relates to the field of computer technology, in particular to data migration methods, systems, equipment and products. Background technique [0002] With the development of distributed database technology, the scale of distributed databases is getting larger and larger, and problems such as load tilt may occur, resulting in the need for database node migration. [0003] In the migration job of the existing distributed database, in order not to affect the normal execution of the transaction, the way of online migration is usually adopted. However, during the online migration process, there may be problems of downtime or transaction interruption caused by the migration. Although there are some migration solutions that can achieve online migration without interrupting transactions, the migration process has high requirements on the performance of the distributed database system and will cause large data overhead. Contents of the invent...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/18G06F16/21G06F16/27
CPCG06F16/1815G06F16/214G06F16/27
Inventor 康俊彬蔡乐李飞飞周星璇
Owner ALIBABA CLOUD COMPUTING LTD