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This article introduces you what is the concept of informix-online dynamic server, the content is very detailed, interested friends can refer to, hope to be helpful to you.

I. informix-online dynamic server

Informix-online dynamic server is implemented with multi-thread architecture, which means that fewer processes are required to complete database activities, and that a database process can serve more than one application through clues. Such a set of processes is often called a database server. As needed, you can dynamically assign a process to the database server. So it is called dynamic server.

A multi-threaded architecture can also have better scalability. This means that as more users are added, the database server requires only a small amount of additional resources, thanks to the inherently scalable efficiency of the multi-thread server.

II. Online system architecture

The online system consists of three main parts.

Short range structure: the process structure forms the database server. The processes that make up the database server are called virtual processors. In unix systems, these processes are called oninit. Each virtual processor belongs to a virtual processor class. The so-called virtual processor class is a set of processes that complete specific tasks.

Shared memory part: the shared memory part consists of three parts, the resident part, the virtual part and the message part. It is mainly used to buffer disk data in shared memory to speed up access (resident part), or to manage and control the resources needed by the process (virtual part). It is also used for communication between clients and servers to coordinate their activities (message part).

Disk portion: the disk portion consists of a set of one or more disk space units allocated to the online system. The data of all databases and the system information of the online system used are stored in the disk section.

About what the concept of informix-online dynamic server is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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