系统环境
docker desktop for windows v4.23.0
nacos
、mysql
、seata
三者都在bridge
网络中
docker run -itd \
-e MODE=standalone
-e NACOS_SERVER_PORT=8848
-p 8848:8848
--name=nacos_standalone
nacos/nacos-server:v2.3.0
docker run -itd \
-e MYSQL_ROOT_PASSWORD=1009
-p 3306:3306
--name=mysql_itcast
mysql:5.7
$ docker network inspect bridge
假设这里nacos
是172.17.0.3
,mysql
是172.17.0.2
ipconfig /all
这里假设宿主机ip为192.168.1.102
之后遇到上述三个ip,记得写成自己的
在mysql_itcast
中新建seata
数据库,然后导入以下脚本
-- -------------------------------- 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` (`xid`)
) 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);
访问Nacos网页,一般是http://localhost:8848/nacos/
,新建一个配置seataServer.properties
具体内容如下:
store.mode=db
#-----db-----
store.db.datasource=druid
store.db.dbType=mysql
# 需要根据mysql的版本调整driverClassName
# mysql8及以上版本对应的driver:com.mysql.cj.jdbc.Driver
# mysql8以下版本的driver:com.mysql.jdbc.Driver
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://172.17.0.2:3306/seata?useUnicode=true&characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false
store.db.user= root
store.db.password=1009
# 数据库初始连接数
store.db.minConn=1
# 数据库最大连接数
store.db.maxConn=20
# 获取连接时最大等待时间 默认5000,单位毫秒
store.db.maxWait=5000
# 全局事务表名 默认global_table
store.db.globalTable=global_table
# 分支事务表名 默认branch_table
store.db.branchTable=branch_table
# 全局锁表名 默认lock_table
store.db.lockTable=lock_table
store.db.distributedLockTable=distributed_lock
# 查询全局事务一次的最大条数 默认100
store.db.queryLimit=100
# undo保留天数 默认7天,log_status=1(附录3)和未正常清理的undo
server.undo.logSaveDays=7
# undo清理线程间隔时间 默认86400000,单位毫秒
server.undo.logDeletePeriod=86400000
# 二阶段提交重试超时时长 单位ms,s,m,h,d,对应毫秒,秒,分,小时,天,默认毫秒。默认值-1表示无限重试
# 公式: timeout>=now-globalTransactionBeginTime,true表示超时则不再重试
# 注: 达到超时时间后将不会做任何重试,有数据不一致风险,除非业务自行可校准数据,否者慎用
server.maxCommitRetryTimeout=-1
# 二阶段回滚重试超时时长
server.maxRollbackRetryTimeout=-1
# 二阶段提交未完成状态全局事务重试提交线程间隔时间 默认1000,单位毫秒
server.recovery.committingRetryPeriod=1000
# 二阶段异步提交状态重试提交线程间隔时间 默认1000,单位毫秒
server.recovery.asynCommittingRetryPeriod=1000
# 二阶段回滚状态重试回滚线程间隔时间 默认1000,单位毫秒
server.recovery.rollbackingRetryPeriod=1000
# 超时状态检测重试线程间隔时间 默认1000,单位毫秒,检测出超时将全局事务置入回滚会话管理器
server.recovery.timeoutRetryPeriod=1000
宿主机新建一个application.yml
文件,内容如下
server:
port: 7091
spring:
application:
name: seata-server
logging:
config: classpath:logback-spring.xml
file:
path: ${user.home}/logs/seata
extend:
logstash-appender:
destination: 127.0.0.1:4560
kafka-appender:
bootstrap-servers: 127.0.0.1:9092
topic: logback_to_logstash
console:
user:
username: seata
password: seata
seata:
config:
# support: nacos, consul, apollo, zk, etcd3
type: nacos
nacos:
server-addr: 172.17.0.3:8848
namespace:
group: DEFAULT_GROUP
username: nacos
password: nacos
data-id: seataServer.properties
registry:
# support: nacos, eureka, redis, zk, consul, etcd3, sofa
type: nacos
nacos:
application: seata-tc-server
server-addr: 172.17.0.3:8848
group: DEFAULT_GROUP
namespace:
# tc集群名称
cluster: SH
username: nacos
password: nacos
# server:
# service-port: 8091 #If not configured, the default is '${server.port} + 1000'
security:
secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
tokenValidityInMilliseconds: 1800000
ignore:
urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login
然后用以下命令运行seata
容器
docker run --name seata-server \
-itd \
-p 8091:8091 \
-p 7091:7091 \
-e STORE_MODE=db \
-e SEATA_IP="192.168.1.102" \
-e SEATA_PORT=8091 \
-v "path/to/application.yml:/seata-server/resources/application.yml" \
seataio/seata-server:2.0.0
访问Seata
网页,这里是http://192.168.1.102:7091/
,输入两个seata后进入系统。
Nacos
网页上查看Seata
服务详情,ip为宿主机ip,不要是docker
容器内网ip就行。
<dependency>
<groupId>com.alibaba.cloudgroupId>
<artifactId>spring-cloud-starter-alibaba-seataartifactId>
<exclusions>
<exclusion>
<artifactId>seata-spring-boot-starterartifactId>
<groupId>io.seatagroupId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>io.seatagroupId>
<artifactId>seata-spring-boot-starterartifactId>
<version>2.0.0version>
dependency>
seata:
registry:
type: nacos
nacos: # tc
server-addr: localhost:8848
namespace: ""
group: DEFAULT_GROUP
application: seata-tc-server # tc服务在nacos中的服务名称
cluster: SH
username: nacos
password: nacos
tx-service-group: seata-demo # 事务组,根据这个获取tc服务的cluster名称
service:
vgroup-mapping: # 事务组与TC服务cluster的映射关系
seata-demo: SH
启动微服务后,除了可以看微服务的日志外,还可以看Seata
容器日志,出现类似以下日志即为正常
2023-12-30 21:37:35 digest=seata-demo,192.168.222.1,1703943453643
2023-12-30 21:37:35 timestamp=1703943453643
2023-12-30 21:37:35 authVersion=V4
2023-12-30 21:37:35 vgroup=seata-demo
2023-12-30 21:37:35 ip=192.168.222.1
2023-12-30 21:37:35 '},channel:[id: 0x7f82356a, L:/172.17.0.4:8091 - R:/172.17.0.1:35092],client version:2.0.0
2023-12-30 21:37:36 21:37:36.389 INFO --- [rverHandlerThread_1_6_500] [rocessor.server.RegRmProcessor] [ onRegRmMessage] [] : RM register success,message:RegisterRMRequest{resourceIds='jdbc:mysql://localhost:3306/seata_demo', version='2.0.0', applicationId='order-service', transactionServiceGroup='seata-demo', extraData='null'},channel:[id: 0x3a9f4e29, L:/172.17.0.4:8091 - R:/172.17.0.1:35096],client version:2.0.0
网上看到以下各种方法均无效
host
网络application.yml
指定spring.cloud.nacos.discovery.ip
以下方法有效
-e SEATA_IP="宿主机ip"
一开始为了图方便,给Nacos用过host网络,结果容器程序运行正常,打不开网页,玄学的一批。
也给Seata使用host网络,为了配置文件里面不用自己手动查询nacos和mysql的ip,结果然并卵。
这个是因为很多文档,都只有3张表,少了一张。
官方文档说store.db.distributedLockTable
是 1.5.1
版本新增的参数。
https://seata.io/zh-cn/docs/user/configurations
但是很多文档和博客,都只有3张表,第4张在哪里呢?
在这里
https://seata.io/zh-cn/docs/ops/deploy-by-docker-compose.html
里面写到nacos注册中心,db存储
时会提供 [建表脚本]
以及最后最重要的是,要在Nacos配置中心配置seataServer.properties
时,要多加一行
store.db.distributedLockTable=distributed_lock
这点在官网文档都没有提及。