Seata配置參考

注意：mysql、redis等連接密碼需修改為相應值

Seata-Server

環境

• 版本：1.4.2
• OS： CentOS Linux release 7.5.1804 (Core)
• ip：192.168.1.78

Registry.conf

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

  nacos {
    application = "seata-server"
    serverAddr = "192.168.1.78:8848"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = ""
    password = ""
  }
}

config {
  # file、nacos 、apollo、zk、consul、etcd3
  type = "nacos"

  nacos {
    serverAddr = "192.168.1.78:8848"
    namespace = ""
    group = "SEATA_GROUP"
    username = ""
    password = ""
    dataId = "seataServer.properties"
  }
}

seataServer.properties

transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableClientBatchSendRequest=true
transport.threadFactory.bossThreadPrefix=NettyBoss
transport.threadFactory.workerThreadPrefix=NettyServerNIOWorker
transport.threadFactory.serverExecutorThreadPrefix=NettyServerBizHandler
transport.threadFactory.shareBossWorker=false
transport.threadFactory.clientSelectorThreadPrefix=NettyClientSelector
transport.threadFactory.clientSelectorThreadSize=1
transport.threadFactory.clientWorkerThreadPrefix=NettyClientWorkerThread
transport.threadFactory.bossThreadSize=1
transport.threadFactory.workerThreadSize=default
transport.shutdown.wait=3
service.vgroupMapping.my_test_tx_group=default

#service.my_test_tx_group.grouplist=192.168.1.78:8091
service.default.grouplist=192.168.1.78:8091
service.enableDegrade=false
service.disableGlobalTransaction=false
client.rm.asyncCommitBufferLimit=10000
client.rm.lock.retryInterval=10
client.rm.lock.retryTimes=30
client.rm.lock.retryPolicyBranchRollbackOnConflict=true
client.rm.reportRetryCount=5
client.rm.tableMetaCheckEnable=false
client.rm.tableMetaCheckerInterval=60000
client.rm.sqlParserType=druid
client.rm.reportSuccessEnable=false
client.rm.sagaBranchRegisterEnable=false
client.rm.sagaJsonParser=fastjson
client.rm.tccActionInterceptorOrder=-2147482648
client.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
client.tm.interceptorOrder=-2147482648
store.mode=db
store.lock.mode=file
#store.session.mode=file
store.session.mode=db
store.publicKey=
store.file.dir=file_store/data
store.file.maxBranchSessionSize=16384
store.file.maxGlobalSessionSize=512
store.file.fileWriteBufferCacheSize=16384
store.file.flushDiskMode=async
store.file.sessionReloadReadSize=100
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://192.168.1.235:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=123456
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.distributedLockTable=distributed_lock
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
store.redis.mode=single
store.redis.single.host=192.168.1.78
store.redis.single.port=6379
store.redis.sentinel.masterName=
store.redis.sentinel.sentinelHosts=
store.redis.maxConn=10
store.redis.minConn=1
store.redis.maxTotal=100
store.redis.database=0
store.redis.password=123456
store.redis.queryLimit=100
server.recovery.committingRetryPeriod=1000
server.recovery.asynCommittingRetryPeriod=1000
server.recovery.rollbackingRetryPeriod=1000
server.recovery.timeoutRetryPeriod=1000
server.maxCommitRetryTimeout=-1
server.maxRollbackRetryTimeout=-1
server.rollbackRetryTimeoutUnlockEnable=false
server.distributedLockExpireTime=10000
client.undo.dataValidation=true
client.undo.logSerialization=jackson
client.undo.onlyCareUpdateColumns=true
server.undo.logSaveDays=7
server.undo.logDeletePeriod=86400000
client.undo.logTable=undo_log
client.undo.compress.enable=true
client.undo.compress.type=zip
client.undo.compress.threshold=64k
log.exceptionRate=100
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898
tcc.fence.logTableName=tcc_fence_log
tcc.fence.cleanPeriod=1h

seata-server.sh

沒有修改過，1.4.2發布版本是什么樣就是什么樣

啟動命令

 sh seata-server.sh   -m  db -h 192.168.1.78  -p 8091

Seata-Client

SeataClient是直接集成到我們的業務微服務中，SeataClient的原理是代理我們jdbc數據源，在應用程序和數據庫之間加了一層，通過添加的這一層來做事務管理。

下面虛擬了兩個業務微服務，一個叫seata-user-service，一個叫seata-car-service。

關於SeataServer和SeataClient的版本對應問題，當前暫未找到相關官方的說明文檔

環境

• SpringBoot：2.5.3
• SpringCloud：2020.0.3
• SpringCloudAlibaba：2021.1

pom

網上有一些文章說引入pom依賴之后，需要手動配置相關容器類，咱們使用的是高版本，引入 spring-cloud-starter-alibaba-seata 后，SpringBoot能夠為我們完成所有的自動配置，這一點需要注意，手動配置和自動配置不可同時存在，這點官網上面有說明。

  <!-- SpringCloud 微服務 -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- SpringCloud Alibaba 微服務 -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            
      
      
  <dependencies>
      <!-- seata -->
<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
</dependency>
 </dependencies>

seata-user-service

application.yml

重點關注兩個地方

• seata.registry：seataClient通過這個配置來找到SeataServer
• spring.cloud.alibaba.seata.tx-service-group：通過這個值來確定事務分組，當前配置的值my_test_tx_group，對應seataServer.properties中的service.vgroupMapping.my_test_tx_group=default

事務分組是為了邏輯上做高可用而設計的一個東西，從某種意義上來說本身就是一個非必須的東西，關於事務分組具體如何使用后續再整理文檔說明

server:
  port: 9302


spring:
  application:
    name: seata-user-service
  cloud:
    nacos:
      discovery:
        # 服務注冊地址
        server-addr: 192.168.1.78:8848

    alibaba:
      seata:
        tx-service-group: my_test_tx_group
#logging:
#  level:
#    io.seata: debug

seata:
  registry:
    type: nacos
    nacos:
      server-addr: 192.168.1.78
      group: SEATA_GROUP
      cluster: default

seata-car-service

application.yml

server:
  port: 9301


spring:
  application:
    name: seata-car-service
  cloud:
    nacos:
      discovery:
        # 服務注冊地址
        server-addr: 192.168.1.78:8848
    alibaba:
      seata:
        tx-service-group: my_test_tx_group

logging:
  level:
    io.seata: debug

seata:
  registry:
    type: nacos
    nacos:
      server-addr: 192.168.1.78:8848
      group: SEATA_GROUP
      cluster: default