Tmall Double 11 payment peak breaks record again Alipay's independent research and development database wins "world-class problems"

　　In the early morning of November 11, 2017, the Tmall Double 11 Global Carnival just started at 5 minutes and 22 seconds, and a new payment peak was born: 256,000 transactions per second, an increase of more than 1.1 times over last year, setting a global record again. At the same time, the database processing peak was born, 42 million times per second.

　　In addition, at the 7th minute and 23rd, the number of payments on Alipay exceeded 100 million, which is equivalent to the total number of payments on Double 11 in 5 years ago (2012). According to netizens' feedback, the payment in the first 10 minutes of Double 11 this year was relatively smooth, without network congestion or stuck.

　　This year is the first time that Alipay has announced its database processing peak. 42 million times/second means that in the second when the payment peak occurs, OceanBase, the independently developed database independently developed by Ant Financial, smoothly handled 42 million requests, which also means that China's independently developed database has jumped to the first echelon of global databases.

　　In layman's terms, OceanBase is a massive database. All data generated by users when using Alipay and the processing of data are stored on OceanBase, so it is also called "super accountant". If this year's Tmall Double 11 is the annual "Olympic Games" for merchants to compete in new retail, then for Alipay, this is also a "park ground" to test Ocean Base's processing capabilities.

　　Hu Xi, chief technical architect and vice president of Ant Financial, introduced that the reason why Alipay announced its "database processing peak" for the first time this year was because this year's Double 11, Alipay moved all core data links, including the accounting database, to the OceanBase, a database independently developed by Ant Financial.

　　"For users, a payment is a payment, and for databases, a payment is a collection of several processing requests." Hu Xi introduced that when users make payments, the money may be transferred from the debit card, borrowed from Huabei, and 10 yuan will be issued by coupons, and paid in installments... These are all independent processing requests that need to be processed by the database. At the peak of payment, whether it can support massive amounts of processing concurrency is a huge test for OceanBase, and the processing peak of 42 million times/second shows that this "super accountant" has withstood the test.

　　It is understood that OceanBase has another technological breakthrough this year's Double 11, which is to achieve "offline hybrid deployment". Its core advantage is that it can second the idle computing resources in the "offline computer room" before the peak of Double 11 payment arrives, and then "repay" back after the peak falls. With this technological innovation, this year's Double 11 payment guarantee has saved more than 2,000 servers.

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