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Data synchronization method and device and database host

A data synchronization and database technology, applied in the field of database processing, can solve problems such as low performance and affecting user experience.

Active Publication Date: 2020-02-18
金篆信科有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In the master-standby database replication scheme of data nodes, semi-synchronous replication with threads waiting synchronously is oft

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  • Data synchronization method and device and database host
  • Data synchronization method and device and database host
  • Data synchronization method and device and database host

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Abstract

The invention discloses a data synchronization method and device and a database host, and the method comprises the steps that the database host receives a transaction submission request; a log is written into a disk file by a host transaction thread in the database host according to the transaction submission request, a log forwarding thread is indicated to send the log to a database standby machine, and the host transaction thread is exited; and the database host receives an acknowledgement ACK response sent by the database standby, and selects a thread from a thread pool to execute a transaction submission operation.

Description

technical field [0001] This application relates to but not limited to database processing technology, especially a data synchronization method, device and database host. Background technique [0002] At present, distributed database has become a key direction of database development. The overall structure of distributed database is as follows: figure 1 shown, where: [0003] The client access layer is composed of multiple APPs (Applications), and supports common ODBC (OpenDatabase Connectivity, open database connection) and JDBC (Java Database Connectivity, Java database connection) interfaces. Users use the distributed database through the client access layer ; [0004] The computing node cluster is composed of multiple DBProxy (database middleware), and SQL (Structured Query Language, Structured Query Language) statements are basically processed and distributed in the computing nodes; [0005] The management node consists of multiple components, including OMM Server (Op...

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Application Information

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IPC IPC(8): G06F16/27G06F11/14
CPCG06F11/1458G06F2201/80G06F2201/82G06F11/14G06F16/27
Inventor 周亚运林品刘志文
Owner 金篆信科有限责任公司
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