版本
启动
通过环境变量SEATA_CONFIG_NAME指定配置文件位置/root/seata-config/registry.conf
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docker run --name seata-server \
-p 8091:8091 \
-e SEATA_CONFIG_NAME=file:/root/seata-config/registry \
-v /User/seata/config:/root/seata-config \
seataio/seata-server
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配置文件
实现高可用需要依赖注册中心，配置中心，数据库
registry.conf
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registry {
type = "nacos"
nacos {
application = "seata-server"
serverAddr = "192.168.199.2"
namespace = "test"
group = "SEATA_GROUP"
cluster = "default"
username = ""
password = ""
}
}
config {
type = "nacos"
nacos {
serverAddr = "192.168.199.2"
namespace = "test"
group = "SEATA_GROUP"
username = ""
password = ""
}
}
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NACOS配置
注：使用nacos配置，需要在对应分组(SEATA_GROUP)下针对配置项目逐条配置文本值，而不是创建包含所有配置的properties文件，可以使用官方源码中的脚本导入
全部可用配置参考
1. 使用数据库
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://192.168.199.2:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=123456
创建数据库
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-- -------------------------------- 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(128),
`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;
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异常处理
1. 客户端报错 Data too long for column ‘application_id'
io.seata.core.exception.TmTransactionException: TransactionException[begin global request failed. xid=null, msg=Data truncation: Data too long for column ‘application_id' at row 1]
at io.seata.tm.DefaultTransactionManager.begin(DefaultTransactionManager.java:55) ~[seata-all-1.3.0.jar:1.3.0]
at io.seata.tm.api.DefaultGlobalTransaction.begin(DefaultGlobalTransaction.java:104) ~[seata-all-1.3.0.jar:1.3.0]
at io.seata.tm.api.TransactionalTemplate.beginTransaction(TransactionalTemplate.java:175) ~[seata-all-1.3.0.jar:1.3.0]
seata数据库global_table.application_id字段默认长度为varchar(32)，如果客户端应用ID超长则报此错
手动修改字段类型增加长度即可
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原文链接：https://blog.csdn.net/zhoudingding/article/details/118512373