[tcapulusdb knowledge base] Introduction to tcapulusdb restrictions

【TcaplusDB The knowledge base 】TcaplusDB Introduction to restrictions

In order to save resources 、 Improve performance and system stability , Database products often have some limitations ,TcaplusDB No exception .

TcaplusDB Support 2 Types of tables ,protobuf(Protocol Buffers) surface TDR(Tencent Data Representation) surface .Protobuf yes Google A descriptive language developed , Serializing structured data , At the same time, it emphasizes simplicity and performance ; TDR It is a cross platform data representation language developed by Tencent , Combined with the XML, Binary sum ORM（ Object relation mapping ） The advantages of , It is widely used in Tencent game data serialization scenarios . among ,TDR Tables support common (generic) Tables and lists (list) surface . generic A table is a table that represents the attributes of an element in the form of a table , For example, students , employer , Game player . list A table is a series of records , For example, game leaderboards , Email in the game （ It's usually the latest 100 Messages ）.

The limitations are as follows ：

TcaplusDB It's a distributed product of Tencent NoSQL database , The code for storage and scheduling is completely self-developed . With cache + Landing fusion architecture 、PB Levels of storage 、 Millisecond delay 、 Lossless horizontal expansion and complex data structure . At the same time, it has rich ecological environment 、 Easy migration 、 Extremely low operation and maintenance costs and five nine high availability features . Customer coverage game 、 Internet 、 government affairs 、 Finance 、 Manufacturing and the Internet of things .