[Java知识库]CentOs7之Seata1.4.0安装

下载地址：https://github.com/seata/seata/releases

安装

cd /usr/local && mkdir seata && cd seata # 下载文件拷贝到当前目录下
tar -zxvf seata-server-1.4.0.tar.gz && mv seata seata-1.4.0 # 解压并重命名

解压目录介绍

• 可执行文件目录
  

bat格式文件为windows系统启动文件
sh格式文件为linux系统启动文件

• 服务端配置文件
  

# 设置Seata服务的注册中心为nacos
registry {
  # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  type = "nacos"
  loadBalance = "RandomLoadBalance"
  loadBalanceVirtualNodes = 10
  nacos {
    application = "seata-server"
    serverAddr = "*.*.*.*:8840"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = "nacos账号"
    password = "nacos密码"
  }
}
# 设置Seata服务的配置中心为nacos
config {
  # file、nacos 、apollo、zk、consul、etcd3
  type = "nacos"
  nacos {
    serverAddr = "*.*.*.*:8840"
    namespace = ""
    group = "SEATA_GROUP"
    username = "nacos账号"
    password = "nacos密码"
  }
}

## 为Seata服务端初始化global_table、branch_table、lock_table三张表，transaction log store, only used in seata-server 
store {
  ## store mode: file、db、redis
  mode = "db"
  ## database store property
  db {
    ## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.
    datasource = "druid"
    ## mysql/oracle/postgresql/h2/oceanbase etc.
    dbType = "mysql"
    driverClassName = "com.mysql.jdbc.Driver"
    url = "jdbc:mysql://127.0.0.1:3306/seata"
    user = "mysql账号"
    password = "mysql密码"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }
}

# 修改日志文件保存路劲：/usr/local/seata/seata-1.4.0/conf/logback.xml
<!-- <property name="LOG_HOME" value="${user.home}/logs/seata"/> -->
<property name="LOG_HOME" value="/usr/local/seata/seata-1.4.0/logs/seata"/>

初始化数据库表结构

• 创建数据库实例

CREATE DATABASE seata default character set utf8 collate utf8_general_ci; # 基于seata的数据库实例对象
GRANT ALL PRIVILEGES on seata.* to 'lixing'@'%'; # 为用户lixing赋予操作数据库实例seata的权限
FLUSH PRIVILEGES; # 刷新权限列表

• 创建服务端 global_table、branch_table、lock_table 表（mysql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_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;

• 创建客户端 undo_log 表（mysql版本）（一个微服务即为一个客户端，需要为每个微服务数据库实例创建）

-- for AT mode you must to init this sql for you business database. the seata server not need it.
CREATE TABLE IF NOT EXISTS `undo_log`
(
    `branch_id`     BIGINT(20)   NOT NULL COMMENT 'branch transaction id',
    `xid`           VARCHAR(100) NOT NULL COMMENT 'global transaction id',
    `context`       VARCHAR(128) NOT NULL COMMENT 'undo_log context,such as serialization',
    `rollback_info` LONGBLOB     NOT NULL COMMENT 'rollback info',
    `log_status`    INT(11)      NOT NULL COMMENT '0:normal status,1:defense status',
    `log_created`   DATETIME(6)  NOT NULL COMMENT 'create datetime',
    `log_modified`  DATETIME(6)  NOT NULL COMMENT 'modify datetime',
    UNIQUE KEY `ux_undo_log` (`xid`, `branch_id`)
) ENGINE = InnoDB
  AUTO_INCREMENT = 1
  DEFAULT CHARSET = utf8 COMMENT ='AT transaction mode undo table';

启动

设置开机自启、开启端口：点我

# 后台运行的方式启动
nohup sh /usr/local/seata/seata-1.4.0/bin/seata-server.sh -h 192.168.233.131 -p 8091 >/dev/null 2>&1 &

自定义Seata配置文件