SZT mr- in depth understanding, configuration file, exception case, load

One ： Production load

The first stage

Configuration file configuration , The gateways of the two computer rooms are connected to four on average mr Server ：

The second stage

According to the configuration file , The project is starting , Gateway and mr Association , Which one mr Connect to the gateway service first , Then this mr Server based mr, rest mr As a load machine ; Standby machine -mr;

（ Similar to the fastest response time in the load algorithm ）

The third stage

Lord mr Due to network card 、 Server problems such as memory caused this server to fail , Switch to standby , The internal response time is also the fastest , Elect a certain equipment mr As the master mr

notes ：1. Four stations mr How servers are associated , How do I know I'm dead , Choose one of the three of you to be Lord mr Well ;

because , The configuration file configures the shared unit configuration , Put four mr Establish a connection （ Pay attention to the four mr Must be started ）, The third chapter is about configuration

2. In the process of switching , What will the request be , Lost

There are two cases ,

2.1：mr1 Hang up unused requests received before , Will migrate to another mr in ,

2.2： At high tps Under the circumstances , Migrate gateway connections mr spot 、 And migration requests , It will occupy server resources such as network speed , During this migration , Requests from customers , There will be cases of non receipt ; 

Two ： Non functional exception cases

Test scenarios ：
tps200

Satisfy 1.1 The first stage , 4. Gateway services , Four stations mr

Each gateway 10 Instances receive requests ,10 Instances send requests , total 80 Connection points ;

2.1 Exception scenario test

 

 

2.2 Load switching  

3、 ... and ： Configuration parameters

Examples of parameters are as follows ：

To be added ：