[in depth understanding of tcapulusdb technology] tcapulusdb model

【 In depth understanding of TcaplusDB technology 】TcaplusDB Model

Take batch new models as an example , Click batch new models , Fill in the following information （ There are many messages , Please refer to the error information to modify the relevant parameters ）

Be careful ：

 1、 The model name is not case sensitive

 2、 Model sort ： The order of models is the priority of machines , Add table review

Auto audit

when ,shard、proxy Can only be assigned to one model , It is preferentially allocated to machines that can meet the requirements of adding table resources with a smaller sorting value

 3、tcapsvr、tcaproxy Calculation process of the number of available units ： ​ ①  Calculate according to memory capacity ：mNum =  Memory capacity / Storage unit size  ​ ②  Calculated based on disk capacity ：dNum =  Disk capacity size /( Storage unit size * Disk memory ratio ) ​ ③  The number of available units is taken as

mNum,dNum,224（tcapsvr、tcaproxy Maximum number of available units ）

The smallest of the three  ​  notes ： Under each cell model , Storage unit size ： Standard region ：1GB; Multi cell ：0.5GB; Low cost area ：0.25GB;

 4、 In cluster maintenance, when the machine configuration on the shelf mode is formal, only the machines in the formal environment can be on the shelf , For testing, the machine can be put on the shelf formally or on the shelf for testing

 5、 The number of available units of the tested models is 512 individual

4： Add success

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 .