Docker 下 Seata 结合 Nacos 的官方案例学习

Seata 官方文档案例的配置补充，官方案例都没怎么提配置的事，到处找配置，踩了好多坑

一、环境版本

操作系统：

Linux Mr 5.11.0-41-generic #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Docker：

Client: Docker Engine - Community
Version: 20.10.6
API version: 1.41
Go version: go1.13.15
Git commit: 370c289
Built: Fri Apr 9 22:47:17 2021
OS/Arch: linux/amd64
Context: default
Experimental: true

Server: Docker Engine - Community
Engine:
Version: 20.10.6
API version: 1.41 (minimum version 1.12)
Go version: go1.13.15
Git commit: 8728dd2
Built: Fri Apr 9 22:45:28 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.4
GitCommit: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e
runc:
Version: 1.0.0-rc93
GitCommit: 12644e614e25b05da6fd08a38ffa0cfe1903fdec
docker-init:
Version: 0.19.0
GitCommit: de40ad0

Nacos：

2.0.3

Seata

1.4.2

二、部署 Nacos

docker run --name nacos -d -p 8848:8848 -p 9848:9848 -p 9849:9849 -e MODE=standalone nacos/nacos-server:2.0.3

我通过 MySQL 的方式部署 Nacos 没成功，，
问题已经提交到 github 上了：https://github.com/nacos-group/nacos-docker/issues/251 ，
哪位好心的大佬可以帮忙看看 QAQ

三、部署 Seata-server

docker run --name seata-server -p 8091:8091 -v /配置文件的路径/registry.conf:/seata-server/resources/registry.conf -v /配置文件的路径/file.conf:/seata-server/resources/file.conf -e SEATA_IP=服务器IP -e SEATA_PORT=8091 -d seataio/seata-server:1.4.2

这里需要指定 IP 启动，不然 client 会找不到 seata-server

registry.conf：

registry {
  # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  type = "nacos"

  nacos {
    application = "seata-server"
    serverAddr = "Nacos IP 地址:8848"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
  eureka {
    serviceUrl = "http://localhost:8761/eureka"
    application = "default"
    weight = "1"
  }
  redis {
    serverAddr = "localhost:6379"
    db = 0
    password = ""
    cluster = "default"
    timeout = 0
  }
  zk {
    cluster = "default"
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 6000
    connectTimeout = 2000
    username = ""
    password = ""
  }
  consul {
    cluster = "default"
    serverAddr = "127.0.0.1:8500"
    aclToken = ""
  }
  etcd3 {
    cluster = "default"
    serverAddr = "http://localhost:2379"
  }
  sofa {
    serverAddr = "127.0.0.1:9603"
    application = "default"
    region = "DEFAULT_ZONE"
    datacenter = "DefaultDataCenter"
    cluster = "default"
    group = "SEATA_GROUP"
    addressWaitTime = "3000"
  }
  file {
    name = "file.conf"
  }
}

config {
  # file、nacos 、apollo、zk、consul、etcd3
  # 这里我不用 Nacos 做配置中心了，用 Nacos 做配置中心需要去运行脚本上传配置到 nacos
  # 上传了一堆，太乱了
  # 官方脚本获取地址：https://github.com/seata/seata/tree/develop/script
  type = "file"

  nacos {
    serverAddr = "Nacos IP 地址:8848:8848"
    namespace = ""
    group = "SEATA_GROUP"
    username = "nacos"
    password = "nacos"
    # dataId = "seataServer.properties"
  }
  consul {
    serverAddr = "127.0.0.1:8500"
    aclToken = ""
  }
  apollo {
    appId = "seata-server"
    ## apolloConfigService will cover apolloMeta
    apolloMeta = "http://192.168.1.204:8801"
    apolloConfigService = "http://192.168.1.204:8080"
    namespace = "application"
    apolloAccesskeySecret = ""
    cluster = "seata"
  }
  zk {
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 6000
    connectTimeout = 2000
    username = ""
    password = ""
    nodePath = "/seata/seata.properties"
  }
  etcd3 {
    serverAddr = "http://localhost:2379"
  }
  file {
    name = "file.conf"
  }
}

用 Nacos 做配置中心的话可以忽略这个文件
file.conf

## transaction log store, only used in seata-server
store {
  ## store mode: file、db、redis
  mode = "file"
  ## rsa decryption public key
  publicKey = ""
  ## file store property
  file {
    ## store location dir
    dir = "sessionStore"
    # branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
    maxBranchSessionSize = 16384
    # globe session size , if exceeded throws exceptions
    maxGlobalSessionSize = 512
    # file buffer size , if exceeded allocate new buffer
    fileWriteBufferCacheSize = 16384
    # when recover batch read size
    sessionReloadReadSize = 100
    # async, sync
    flushDiskMode = async
  }

  ## 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"
    ## if using mysql to store the data, recommend add rewriteBatchedStatements=true in jdbc connection param
    url = "jdbc:mysql://127.0.0.1:3306/seata?rewriteBatchedStatements=true"
    user = "root"
    password = "123456"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }

  ## redis store property
  redis {
    ## redis mode: single、sentinel
    mode = "single"
    ## single mode property
    single {
      host = "127.0.0.1"
      port = "6379"
    }
    ## sentinel mode property
    sentinel {
      masterName = ""
      ## such as "10.28.235.65:26379,10.28.235.65:26380,10.28.235.65:26381"
      sentinelHosts = ""
    }
    password = ""
    database = "0"
    minConn = 1
    maxConn = 10
    maxTotal = 100
    queryLimit = 100
  }
}

根据自己的需要修改

四、client 配置

client 的代码可以参考官方文档编写
这里这贴出其中一个服务的配置

注意：如果是 jdk11 以上的话启动需要加个参数：
--add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/sun.reflect.generics.reflectiveObjects=ALL-UNNAMED --add-opens java.base/java.math=ALL-UNNAMED
官方解释：https://dubbo.apache.org/zh/blog/2018/08/07/使用jdk17编译运行dubbo-2.7.14项目/

依赖版本：

        2.3.12.RELEASE
        2.2.7.RELEASE
        Hoxton.SR12
        3.0.5
        8.0.21
        3.4.0
        1.4.2

依赖：

        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-seata
            
                
                    io.seata
                    seata-spring-boot-starter
                
            
        
        
            io.seata
            seata-spring-boot-starter
        

        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-config
        

        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
        

        
        
            org.apache.dubbo
            dubbo-spring-boot-starter
        

        
        
            mysql
            mysql-connector-java
        

        
        
            com.baomidou
            mybatis-plus-boot-starter
        

bootstrap.yml：

spring:
  application:
    name: storage-service
  cloud:
    nacos:
      server-addr: Naocs IP 地址:8848
      discovery:
        group: SEATA_GROUP
      config:
        file-extension: yml
        group: SEATA_GROUP

seata:
  registry:
    type: nacos
    nacos:
      server-addr: Naocs IP 地址:8848
      username: nacos
      password: nacos
  ## 事务组名称，要和下面的 file.conf 一致
  ## 配置中心用的 Nacos 的话就加一个service.vgroupMapping.storage-service-tx-group 的配置，配置里填 default
  tx-service-group: ${spring.application.name}-tx-group

用 Nacos 做配置中心的话就忽略这个文件
官方的脚本会将 client 的配置一并上传
创建一个 file.conf 放在 resources 下
file.conf：

transport {
  # tcp, unix-domain-socket
  type = "TCP"
  #NIO, NATIVE
  server = "NIO"
  #enable heartbeat
  heartbeat = true
  # the tm client batch send request enable
  enableTmClientBatchSendRequest = false
  # the rm client batch send request enable
  enableRmClientBatchSendRequest = true
   # the rm client rpc request timeout
  rpcRmRequestTimeout = 2000
  # the tm client rpc request timeout
  rpcTmRequestTimeout = 10000
  #thread factory for netty
  threadFactory {
    bossThreadPrefix = "NettyBoss"
    workerThreadPrefix = "NettyServerNIOWorker"
    serverExecutorThread-prefix = "NettyServerBizHandler"
    shareBossWorker = false
    clientSelectorThreadPrefix = "NettyClientSelector"
    clientSelectorThreadSize = 1
    clientWorkerThreadPrefix = "NettyClientWorkerThread"
    # netty boss thread size
    bossThreadSize = 1
    #auto default pin or 8
    workerThreadSize = "default"
  }
  shutdown {
    # when destroy server, wait seconds
    wait = 3
  }
  serialization = "seata"
  compressor = "none"
}
service {
  #transaction service group mapping
  #事务组
  vgroupMapping.storage-service-tx-group = "default"
  #only support when registry.type=file, please don't set multiple addresses
  default.grouplist = "127.0.0.1:8091"
  #degrade, current not support
  enableDegrade = false
  #disable seata
  disableGlobalTransaction = false
}

client {
  rm {
    asyncCommitBufferLimit = 10000
    lock {
      retryInterval = 10
      retryTimes = 30
      retryPolicyBranchRollbackOnConflict = true
    }
    reportRetryCount = 5
    tableMetaCheckEnable = false
    tableMetaCheckerInterval = 60000
    reportSuccessEnable = false
    sagaBranchRegisterEnable = false
    sagaJsonParser = "fastjson"
    sagaRetryPersistModeUpdate = false
    sagaCompensatePersistModeUpdate = false
    tccActionInterceptorOrder = -2147482648 #Ordered.HIGHEST_PRECEDENCE + 1000
    sqlParserType = "druid"
  }
  tm {
    commitRetryCount = 5
    rollbackRetryCount = 5
    defaultGlobalTransactionTimeout = 60000
    degradeCheck = false
    degradeCheckPeriod = 2000
    degradeCheckAllowTimes = 10
    interceptorOrder = -2147482648 #Ordered.HIGHEST_PRECEDENCE + 1000
  }
  undo {
    dataValidation = true
    onlyCareUpdateColumns = true
    logSerialization = "jackson"
    logTable = "undo_log"
    compress {
      enable = true
      # allow zip, gzip, deflater, 7z, lz4, bzip2, zstd default is zip
      type = zip
      # if rollback info size > threshold, then will be compress
      # allow k m g t
      threshold = 64k
    }
  }
  loadBalance {
      type = "RandomLoadBalance"
      virtualNodes = 10
  }
}
log {
  exceptionRate = 100
}
tcc {
  fence {
    # tcc fence log table name
    logTableName = tcc_fence_log
    # tcc fence log clean period
    cleanPeriod = 1h
  }
}

从官方 github 上拿的，根据自己的需要修改

创建 uodo_log
数据库中必须要有这张表

CREATE TABLE `undo_log` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `branch_id` bigint(20) NOT NULL,
  `xid` varchar(100) NOT NULL,
  `context` varchar(128) NOT NULL,
  `rollback_info` longblob NOT NULL,
  `log_status` int(11) NOT NULL,
  `log_created` datetime NOT NULL,
  `log_modified` datetime NOT NULL,
  `ext` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

写完业务代码就可以启动了