Seata installing the window environment

One 、 Introduce

Seata Is an open source distributed transaction solution , Committed to providing high-performance and easy-to-use distributed transaction services .Seata Will provide users with AT、TCC、SAGA and XA Transaction mode , Create a one-stop distributed solution for users .
Chinese official website      Deployment Guide

Two 、 download

Get into Seata On the download page, select the version to download . I downloaded it here 1.3.0 edition , The following configuration is based on this version description .

3、 ... and 、 To configure

1. Server storage mode configuration

Server End storage mode existing file、db、redis Three .

• file The mode does not need to be changed , Just start it directly .file Mode is stand-alone mode , Read and write global transaction session information in memory and persist local files root.data, Higher performance ;
• db The mode is high availability mode , Global transaction session information through db share , The corresponding performance is worse ;
• redis Pattern Seata-Server 1.3 And above support , Higher performance , There is a risk of loss of transaction information , Please configure the appropriate redis Persistent configuration .

Profile location ： Under the installation package /conf / file.conf, See the screenshot below for the original document

The original configuration file mode is file File mode , Optional configuration DB,Redis Pattern , Here we configure the common mode DB. Switch DB Mode time , Pay attention to the database version used , The default configured database driver here is 8.0 Under version , If it is 8.0 The above version of the database , The driver name needs to be changed .

The database is configured here , Then you need to create corresponding libraries and related tables .

2. DB Patterns create databases

Seata The official database script , Just download and import the database , The script is in the source code Script Under the folder , see Seata-Script, stay Deployment Guide There are also hints in the documentation ：


server In file db There are database scripts , Execute the corresponding script .

Here is the stand-alone version seata It's set up , Can be in bin Execute script under file seata-server.bat, You can run seata Service for .

But in practice , We usually build a highly available seata colony , Use with the registry , Such as Nacos, Multiple seata Service cluster , Will consider load balancing , Above we will seata Client configuration, such as storage configuration DB They are all local files , When using a cluster , A configuration change needs to go to each seata The server changes the file , Inefficient and error prone , These configurations can be registered in Nacos in , utilize Nacos To each seata Load balancing , And unified management seata Configuration of .

3. Registry configuration

The client, that is, the transaction participant, needs and seata The transaction coordinator communicates , Recommended here Nacos Registry Center ,seata Service registered to Nacos In the after , The corresponding load balancing operation can be performed .
The location of the configuration file is the same as the server storage configuration ： Under the installation package /conf / registry.conf

4. Configuration center configuration

seata The server configuration file information of is as set above DB Configuration and some other configurations , You can also put Nacos in , By default, these configurations are local /conf / file.conf In file , When we build seata When the cluster , Can share Nacos Medium seata To configure .
The configuration file location is the same as the registry configuration ： Under the installation package /conf / registry.conf

So you're going to have to seata The configuration in is registered to Nacos in ,seata For the configuration of the configuration center, similar MySQL Script for , Also in resources , stay Script Under the document config-center / config.txt In file

open seata You can see many configuration items in the provided configuration file , Most of these are the default configurations and do not need to be changed ( You can delete ), You only need to change the storage configuration for the server to DB Pattern , Stored in MySQL in , This configuration is described above /conf / file.conf The file has been changed once , Here we just need the same changes .

Configuration change completed , But ultimately, you have to register in Nacos in ,seata Here is also a script for registration , You can register the configuration file to Nacos in , In the configuration file directory , You can see seata Provides a variety of registry tools , There are corresponding scripts in it .

stay Nacos There is shell and python Script , Here we use shell Script , But in front of us seate The server is deployed in window Can't execute on shell file , Local... Can be used here git Environment to operate . Open in the script folder Git Bash, Just execute the script , The following screenshot specifies Nacos Service address port , If you do not specify, the default is to use local Naocs Service default port .

User defined parameter description ：
-h：host, The default value is localhost
-p：port, The default value is 8848
-g： Default group , The default value is "SEATA_GROUP"
-t： Tenant information , Corresponding Nacos The namespace of ID Field , The default value is null

Here we use Nacos take seata Deploy as a highly available mode , You can start seata service , stay bin Execute file under file seata-server.bat, You can also start it in a custom way , The custom parameters are as follows ：

Parameters	jurisdiction	effect	remarks
-h	–host	Specify the registration in the registry IP	Get the current when not specified IP, External access deployed in cloud environments and containers server, It is recommended that
-p	–post	Appoint server Start port	The default is 8091
-m	–storeMode	Transaction log storage mode	Support file,db,redis, Default file
-n	–serverNode	Is used to specify the seata-server node ID	Such as 1,2,3…, The default is 1
-e	–seataEnv	Appoint seata-server Running environment	Such as dev,prod etc. , The service will start with registry-dev.conf This configuration

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seata After the service starts successfully , Will be registered to Nacos in , We need to use seata To handle distributed transactions , Just call Nacos Registered in Seata The service can be , The corresponding configuration information needs to be maintained only in Nacos Modify the corresponding configuration in .