Seata Server环境搭建

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存储模式说明

Seata Server端的存储模式有三种

• file
• db
• redis

默认为file

搭建DB存储模式

下载安装包

wget https://github.com/seata/seata/releases/download/v1.4.1/seata-server-1.4.1.tar.gz
wget https://github.com/seata/seata/archive/v1.4.1.tar.gz

解压

tar zxvf seata-server-1.4.1.tar.gz -C ~/app/
tar zxvf v1.4.1.tar.gz -C ~/app/

建表

全局事务会话信息由3块内容构成

• 全局事务 —— global_table
• 分支事务 —— branch_table
• 全局锁 —— lock_table

创建数据库seata，执行sql脚本(~/app/seata-1.4.1/script/server/db/mysql.sql)

-- -------------------------------- The script used when storeMode is 'db' --------------------------------
-- the table to store GlobalSession data
CREATE TABLE IF NOT EXISTS `global_table`
(
    `xid`                       VARCHAR(128) NOT NULL,
    `transaction_id`            BIGINT,
    `status`                    TINYINT      NOT NULL,
    `application_id`            VARCHAR(32),
    `transaction_service_group` VARCHAR(32),
    `transaction_name`          VARCHAR(128),
    `timeout`                   INT,
    `begin_time`                BIGINT,
    `application_data`          VARCHAR(2000),
    `gmt_create`                DATETIME,
    `gmt_modified`              DATETIME,
    PRIMARY KEY (`xid`),
    KEY `idx_gmt_modified_status` (`gmt_modified`, `status`),
    KEY `idx_transaction_id` (`transaction_id`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8;

-- the table to store BranchSession data
CREATE TABLE IF NOT EXISTS `branch_table`
(
    `branch_id`         BIGINT       NOT NULL,
    `xid`               VARCHAR(128) NOT NULL,
    `transaction_id`    BIGINT,
    `resource_group_id` VARCHAR(32),
    `resource_id`       VARCHAR(256),
    `branch_type`       VARCHAR(8),
    `status`            TINYINT,
    `client_id`         VARCHAR(64),
    `application_data`  VARCHAR(2000),
    `gmt_create`        DATETIME(6),
    `gmt_modified`      DATETIME(6),
    PRIMARY KEY (`branch_id`),
    KEY `idx_xid` (`xid`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8;

-- the table to store lock data
CREATE TABLE IF NOT EXISTS `lock_table`
(
    `row_key`        VARCHAR(128) NOT NULL,
    `xid`            VARCHAR(96),
    `transaction_id` BIGINT,
    `branch_id`      BIGINT       NOT NULL,
    `resource_id`    VARCHAR(256),
    `table_name`     VARCHAR(32),
    `pk`             VARCHAR(36),
    `gmt_create`     DATETIME,
    `gmt_modified`   DATETIME,
    PRIMARY KEY (`row_key`),
    KEY `idx_branch_id` (`branch_id`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8;

修改store.mode

vi ~/app/seata/conf/file.conf

修改数据库配置

配置Nacos注册中心

vi ~/app/seata/conf/registry.conf

配置Nacos配置中心

vi ~/app/seata/conf/registry.conf

注意：

如果配置了seata server使用nacos作为配置中心，则配置信息会从nacos读取，file.conf可以不用配置。

客户端配置registry.conf使用nacos时也要注意group要和seata server中的group一致，默认group是"DEFAULT_GROUP"

启动Nacos

sh ~/app/nacos/bin/startup.sh -m standalone

修改配置参数

vi ~/app/seata-1.4.1/script/config-center/config.txt

同步配置参数到Nacos 

cd ~/app/seata-1.4.1/script/config-center/nacos
sh nacos-config.sh -h localhost -p 8848 -g SEATA_GROUP

查看同步配置

启动Seata Server

sh ~/app/seata/bin/seata-server.sh

Reference

https://github.com/seata/seata/releases