一、环境
seata: 1.4.2
spring-cloud-alibaba: 2021.1
二、集成方式
1、框架集成
<dependency>
<groupId>io.seata</groupId>
<artifactId>seata-spring-boot-starter</artifactId>
</dependency>
<!-- SpringBoot Seata -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-seata</artifactId>
<exclusions>
<exclusion>
<groupId>io.seata</groupId>
<artifactId>seata-spring-boot-starter</artifactId>
</exclusion>
</exclusions>
</dependency>
2、解决序列化问
<dependency>
<groupId>com.esotericsoftware</groupId>
<artifactId>kryo</artifactId>
<version>4.0.2</version>
</dependency>
<dependency>
<groupId>de.javakaffee</groupId>
<artifactId>kryo-serializers</artifactId>
<version>0.42</version>
</dependency>
三、部署配置
1、配置seata的registry.conf
- 修改registry
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
application = "seata-server"
serverAddr = "127.0.0.1:8100" //nacos的配置
group = "SEATA_GROUP"
namespace = "5546eadd-3430-4dd2-ae4e-7b196df608a9" //命名空间的id,自己新建就有了。
cluster = "default"
username = ""
password = ""
}
}
- 修改config
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "127.0.0.1:8100" //nacos的地址
namespace = "5546eadd-3430-4dd2-ae4e-7b196df608a9" // 命名空间id
group = "SEATA_GROUP"
username = ""
password = ""
dataId = "seataServer.properties" //命名空间里的dataId,具体内容参见后面的内容。
}
}
2、配置nacos
seataServer.properties 里的内容 :
transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableTmClientBatchSendRequest=false
transport.enableRmClientBatchSendRequest=true
transport.rpcRmRequestTimeout=5000
transport.rpcTmRequestTimeout=10000
transport.rpcTcRequestTimeout=10000
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.default_tx_group=default
service.default.grouplist=127.0.0.1:8091
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 #模式
store.lock.mode=db
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.cj.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true&rewriteBatchedStatements=true #数据源要修改
store.db.user=root
store.db.password=81
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=127.0.0.1
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=1
store.redis.password=
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=kryo #解决序列化问题
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
server.session.branchAsyncQueueSize=5000
server.session.enableBranchAsyncRemove=true
三、项目内的配置
spring:
datasource:
druid:
stat-view-servlet:
enabled: true
loginUsername: admin
loginPassword: 123456
dynamic:
druid:
initial-size: 5
min-idle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1 FROM DUAL
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
maxPoolPreparedStatementPerConnectionSize: 20
filters: stat,slf4j
connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000
datasource:
# 主库数据源
master:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
username: root
password: 81
# 从库数据源
# slave:
# username:
# password:
# url:
# driver-class-name:
seata: true # 开启seata代理,开启后默认每个数据源都代理,如果某个不需要代理可单独关闭
# seata配置
seata:
# 默认关闭,如需启用spring.datasource.dynami.seata需要同时开启
enabled: true
# Seata 应用编号,默认为 ${spring.application.name}
application-id: ${spring.application.name}
# Seata 事务组编号,用于 TC 集群名
tx-service-group: ${spring.application.name}-group
# 关闭自动代理
enable-auto-data-source-proxy: false
# 服务配置项
service:
# 虚拟组和分组的映射
vgroup-mapping:
ihemou-system-group: default
config:
type: nacos
nacos:
serverAddr: 127.0.0.1:8100
group: SEATA_GROUP
namespace: 5546eadd-3430-4dd2-ae4e-7b196df608a9
data-id: seataServer.properties
registry:
type: nacos
nacos:
application: seata-server
server-addr: 127.0.0.1:8100
namespace: 5546eadd-3430-4dd2-ae4e-7b196df608a9
client:
undo:
log-serialization: kryo
四、在业务数据库中增加 undo_log 表,此表可复制seata数据库里的表。