Shulou(Shulou.com)06/03 Report--

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Distributed database has suddenly become a hot technology this year. What are the environmental changes behind this that have led to this technological evolution, and what are the advantages of distributed databases? What is the current situation of this kind of distributed database in China?

Database evolution direction

Just like the birth of relational database in the 1970s, the birth of distributed database is based on the background of more and more data and more and more important data.

The evolution of database

Database is an electronic filing cabinet, which is used to store electronic documents. Under the background of cloud computing and big data, how to help users better add, intercept, update and delete the data in the file, and how to provide the current database suitable for big data Internet in addition to the original database form is a problem for IT enterprises.

The emergence of distributed database solves the problems mentioned above to some extent. The initial emergence of distributed databases was around 2005, when cloud computing was just emerging. With the rise of the new IT ecology, the database has also embarked on the road of distributed evolution.

Analysis of the advantages of distributed Database

If you don't know enough about distributed databases, you can think about this kind of distributed database used in Alibaba's e-commerce platform in the Singles' Day war that just ended.

According to the data released yesterday, the total turnover of Singles Day exceeded 168.2 billion yuan. On the same day, the OceanBase distributed database independently developed by Alibaba completed 256000 orders per second and 148000 payments. The advantages of physical separation and logical unity are realized by using distributed database.

In addition to the characteristics of physical separation and logical unity, distributed database also has the characteristics of site autonomy. This basic feature makes the distributed database have data independence and location transparency, and the response speed of local applications is upgraded.

Specifically, we all know that in recent years, the GMV data of Singles Day has been increasing, the IT infrastructure of the transaction background has also been increasing, and a single database server will not meet the demand. Distributed database can well meet the flexible needs of e-commerce platform, can achieve vertical screen expansion, through the addition of multiple servers to further distribute data and share data processing tasks.

There is no doubt that distributed database system (including distributed database management system and distributed database) is developed on the basis of centralized database system. Although it is very popular now, it still faces some problems.

The domestic open source distributed database is still short of popularity.

As mentioned earlier, OceanBase is a domestic distributed database independently developed by Alibaba. Baidu, Huawei and other enterprises also do distributed database research and development in China. However, due to the late start of domestic database research and development, there is still a lack of strong technical accumulation and some heat.

But it is worth affirming that domestic open source distributed SQL databases such as TiDB have emerged. This more orthodox implementation of Spanner and F1 (the former two are Google distributed databases) supports both traditional RDBMS and NoSQL, but it is still in the open source research stage.

Under the background of the Internet tide, China's distributed database appears, which also fills the gap of domestic database. Now, the distributed database is popular, this will also be the development direction in the future, the database will also achieve the "cloud" database form.

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