Shulou(Shulou.com)06/01 Report--

More than 15:00 on October 23, more than experts gave a joint explanation.

With the gradual popularization of cloud computing technology, the boundaries of customer industries and scenarios using cloud services are constantly being broadened and new requirements are constantly put forward. Led by the Internet industry, which was the first to try cloud computing, finance, insurance and other industries have begun to embrace cloud computing, while many companies represented by banks and securities have put forward stricter requirements for cloud database services: just like their database systems based on expensive traditional IOE, they must ensure that data can not be lost or corrupted under any circumstances. So in this background and customer-driven, we hope to increase the number of copies, without losing availability, to provide higher data reliability and give customers more choices.

Under this background, MySQL three-node Enterprise Edition came into being. It is a series of cloud databases for high-end enterprise users. In addition to maintaining the original MySQL compatibility and availability, Paxos protocol is also introduced into the AliSQL kernel to ensure strong data consistency and provide financial reliability.

Core advantage

Strong consistency of data: three-node Enterprise Edition is based on Paxos consistency protocol, which provides consistent capability of RPO=0 points and multiple replicas across availability zones to ensure zero data loss.

Low cost: the three-node enterprise edition adopts the deployment model of three-log and two-data, which greatly reduces the cost while taking into account reliability and high availability.

Efficient synchronization: with the compression and batch pipeline technology of three-node enterprise trial, the log synchronization efficiency is much higher than that of the open source community version of MySQL master / slave architecture, and supports library-level, table-level, logical clock and row-level parallel playback strategies.

High-efficiency Rongzai: the three-node enterprise version has an automatic health detection mechanism, and the master is selected by the consistency protocol, which can automatically achieve fault switching in seconds and avoid brain fissure.

Read-only node extension: the three-node Enterprise Edition supports the expansion of read-only nodes by adding the Leraner role of the Paxos protocol, ensuring that only things that have reached the majority facts will exist in read-only nodes, and supports free specification of replication topologies.

Strong performance, stable and reliable: provide 99.99% SLA availability guarantee, long-term service to all business lines of Ali Group, and steadily support the test of peak traffic of previous Ali Singles Day core transactions.

Aliyun Relational Database RDS (Relational Database Service) MySQL is an online database service with high performance, high security, easy scalability, stability and reliability. In the Internet, cloud computing, retail e-commerce and other industries are widely used, the penetration rate is very high, a good user base, for the previous Singles Day core transactions peak traffic escort!

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