Docker Seata分布式事务保护搭建 DB数据源版搭建 结合Nacos服务注册

介绍

Seata（Simple Extensible Autonomous Transaction Architecture）是一个开源的分布式事务解决方案，旨在为微服务架构中的分布式系统提供事务管理支持。Seata 通过提供全局事务管理，帮助开发者在分布式环境中保持数据一致性

官网：https://seata.apache.org/zh-cn/

Server端存储模式(store.mode)支持三种：

• file：单机模式，全局事务会话信息内存中读写并持久化本地文件root.data，性能较高(默认)
• db：(mysql 5.7+)高可用模式，全局事务会话信息通过db共享，相应性能差些
• redis：Seata-Server 1.3及以上版本支持，性能较高，存在事务信息丢失风险，请提前配置适合当前场景的redis持久化配置。

创建MYSQL持久化

以下为Seta1.5.2版本

-- -------------------------------- 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_status_gmt_modified` (`status` , `gmt_modified`),
    KEY `idx_transaction_id` (`transaction_id`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8mb4;

-- 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 = utf8mb4;

-- the table to store lock data
CREATE TABLE IF NOT EXISTS `lock_table`
(
    `row_key`        VARCHAR(128) NOT NULL,
    `xid`            VARCHAR(128),
    `transaction_id` BIGINT,
    `branch_id`      BIGINT       NOT NULL,
    `resource_id`    VARCHAR(256),
    `table_name`     VARCHAR(32),
    `pk`             VARCHAR(36),
    `status`         TINYINT      NOT NULL DEFAULT '0' COMMENT '0:locked ,1:rollbacking',
    `gmt_create`     DATETIME,
    `gmt_modified`   DATETIME,
    PRIMARY KEY (`row_key`),
    KEY `idx_status` (`status`),
    KEY `idx_branch_id` (`branch_id`),
    KEY `idx_xid_and_branch_id` (`xid` , `branch_id`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8mb4;

CREATE TABLE IF NOT EXISTS `distributed_lock`
(
    `lock_key`       CHAR(20) NOT NULL,
    `lock_value`     VARCHAR(20) NOT NULL,
    `expire`         BIGINT,
    primary key (`lock_key`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8mb4;

INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('AsyncCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryRollbacking', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('TxTimeoutCheck', ' ', 0);

数据库脚本

https://github.com/apache/incubator-seata/blob/1.5.2/script/server/db/mysql.sql

拉取镜像

docker pull seataio/seata-server:1.5.2

配置文件

server:
  port: 7091

spring:
  application:
    name: seata-server
console:
  user:
    username: seata
    password: seata

seata:
  config:
    type: nacos
    nacos:
      server-addr: 172.23.4.128:8848
      namespace:
      group: DEFAULT_GROUP
      username: 
      password: 
  registry:
    type: nacos
    nacos:
      application: seata-server
      server-addr: 172.23.4.128:8848
      group: DEFAULT_GROUP
      namespace:
      cluster: default
      username: nacos
      password: nacos
  store:
    mode: db
    db:
      datasource: druid
      db-type: mysql
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://172.23.4.128:3306/seata?characterEncoding=utf8&useSSL=false&serverTimezone=GMT%2B8&rewriteBatchedStatements=true&allowPublicKeyRetrieval=true
      user: root
      password: 123456
      min-conn: 10
      max-conn: 100
      global-table: global_table
      branch-table: branch_table
      lock-table: lock_table
      distributed-lock-table: distributed_lock
      query-limit: 1000
      max-wait: 5000
  security:
    secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
    tokenValidityInMilliseconds: 1800000
    ignore:
      urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.jpeg,/**/*.ico,/api/v1/auth/login,/metadata/v1/**

运行

将配置文件

/etc/local/seata/application.yml

挂载到容器里的配置文件

/seata-server/resources/application.yml

 docker run -d   -p 8091:8091 -p 7091:7091   --name seata  -e SEATA_IP=172.23.4.128  -v /etc/local/seata/application.yml:/seata-server/resources/application.yml   seataio/seata-server:1.5.2

docker inspect seata

http://172.23.4.128:7091