相关链接：
https://blog.csdn.net/qq853632587/article/details/111644295
相关释义
- 1、nacos可以有账号密码登录 也可以没有
- 2、命名空间：默认是public 配置了就会有相应的在nacos控制台展示
- 3、seata的注册中心和配置中心，有多种形式，默认是file，可以改成nocos；配置中心如果是nacos，需要上传config.txt上的配置到nacos上（注意 -t为命名空间的id不是名字）
- 4、seata默认有2个mysql的驱动 5.0 8.0 如果要使用8.0
5.0： driverClassName = “com.mysql.jdbc.Driver”
8.0： driverClassName = “com.mysql.cj.jdbc.Driver”
- 5、现在的情况是：seata的走nacos的配置中心，所以有seata的配置都走seata的命名空间下，其他照旧
1、修改上传seata的配置到配置中心
下载seata源码，然后进入script/conf-center，修改conf.txt的配置，再进入nacos目录，然后上传到nacos配置中心去
config.txt
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| transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableClientBatchSendRequest=false
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.default.grouplist=192.168.31.168:8091
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.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
store.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://192.168.31.167:3306/seata?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false
store.db.user=root
store.db.password=asdw@123
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
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.maxConn=10
store.redis.minConn=1
store.redis.maxTotal=100
store.redis.database=0
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
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
|
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| sh nacos-config.sh -h 192.168.31.167 -p 8848 -g SEATA_GROUP -t f2dd13e4-1886-4b27-b6d5-e8332875d7e5
|
-h 配置中心url
-p 配置中心端口
-g 分组名
-t 命名空间的id(不是名字是id)
创建事务日志数据库seata
进入seata源码，script/server/db下面，执行mysql.sql
有三张表global_table branch_table lock_table
其次，所有的业务数据库也要添加undo_log表
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| CREATE TABLE IF NOT EXISTS `undo_log`
(
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'increment id',
`branch_id` BIGINT(20) NOT NULL COMMENT 'branch transaction id',
`xid` VARCHAR(100) NOT NULL COMMENT 'global transaction id',
`context` VARCHAR(128) NOT NULL COMMENT 'undo_log context,such as serialization',
`rollback_info` LONGBLOB NOT NULL COMMENT 'rollback info',
`log_status` INT(11) NOT NULL COMMENT '0:normal status,1:defense status',
`log_created` DATETIME NOT NULL COMMENT 'create datetime',
`log_modified` DATETIME NOT NULL COMMENT 'modify datetime',
PRIMARY KEY (`id`),
UNIQUE KEY `ux_undo_log` (`xid`, `branch_id`)
) ENGINE = InnoDB
AUTO_INCREMENT = 1
DEFAULT CHARSET = utf8 COMMENT ='AT transaction mode undo table';
|
2、docker部署seata
拉取镜像
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| docker pull seataio/seata-server:1.4.0
|
seata server使用file的方式 (暂时不使用这种方式，忽略)
file.conf默认配置
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| ## transaction log store, only used in seata-server
store {
## store mode: file、db、redis
mode = "db"
## 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.cj.jdbc.Driver"
url = "jdbc:mysql://192.168.31.167:3306/seata?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai"
user = "root"
password = "asdw@123"
minConn = 5
maxConn = 100
globalTable = "global_table"
branchTable = "branch_table"
lockTable = "lock_table"
queryLimit = 100
maxWait = 5000
}
## redis store property
redis {
host = "127.0.0.1"
port = "6379"
password = ""
database = "0"
minConn = 1
maxConn = 10
maxTotal = 100
queryLimit = 100
}
}
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registry.conf 默认配置
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| registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos" # 这里使用nacos注册中心，所以只修改nacos配置即可，下面的file配置也可以删掉
nacos {
application = "seata-server"
serverAddr = "192.168.31.167:8848"
group = "SEATA_GROUP"
namespace = ""
cluster = "default"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "file" # 这里使用的file 配置，也就是本地file文件配置，nacos 也可以删掉
file {
name = "file.conf"
}
}
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| docker run --name seata-server -d \
-p 8091:8091 \
-e SEATA_IP=192.168.31.168 \
-e SEATA_PORT=8091 \
-v /seata/conf/registry.conf:/seata-server/resources/registry.conf \
-v /seata/conf/file.conf:/seata-server/resources/file.conf \
-v /seata/logs:/root/logs \
--privileged=true \
seataio/seata-server:1.4.0
|
只能映射两个文件 registry.conf 和 file.conf
不要使用 文件夹映射 -v /seata/conf:/seata-server/resources
seata server使用nacos方式 （推荐使用）
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| registry {
#seata 的注册中心使用nacos 还可以使用eureka等
type = "nacos"
nacos {
#seata server名字
application = "seata-server"
#注册中心地址 现在是nacos
serverAddr = "192.168.31.167:8848"
#分组名
group = "SEATA_GROUP"
#集群名称 默认default
cluster = "default"
}
}
config {
#seata 的配置中心使用nacos 还可以使用file本地配置等
type = "nacos"
nacos {
#配置中心地址 现在是nacos
serverAddr = "192.168.31.167:8848"
#配置中心命名空间 seata的命名空间id
namespace = "f2dd13e4-1886-4b27-b6d5-e8332875d7e5"
#分组名
group = "SEATA_GROUP"
}
}
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| docker run --name seata-server -d \
-e SEATA_IP=192.168.31.168 \
-e SEATA_PORT=8091 \
-v /seata/conf/registry.conf:/seata-server/resources/registry.conf \
-v /seata/logs:/root/logs \
--privileged=true \
--net=host\
seataio/seata-server:1.4.0
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-e SEATA_IP seata的被发现地址（也就是自身的ip）
-e SEATA_PORT 端口
-v /seata/conf/registry.conf:/seata-server/resources/registry.conf 映射本地文件到docker容器内
–privileged=true 给予权限
–net=host 使用host模式
3、客户端部署seata
pom.xml
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| <dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-seata</artifactId>
<version>2.2.0.RELEASE</version>
<exclusions>
<exclusion>
<groupId>io.seata</groupId>
<artifactId>seata-spring-boot-starter</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.seata</groupId>
<artifactId>seata-spring-boot-starter</artifactId>
<version>1.4.0</version>
</dependency>
|
.yaml
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| seata:
enabled: true
application-id: contract #微服务应用名称
tx-service-group: my_test_tx_group #此处配置自定义的seata事务分组名称
enable-auto-data-source-proxy: true #开启数据库代理
registry:
type: nacos
nacos:
application: seata-server
server-addr: 192.168.31.167:8848 #注册中心nacos地址
group: SEATA_GROUP #分组名 对应服务器端配置
cluster: default #默认集群名
config:
type: nacos
nacos:
server-addr: 192.168.31.167:8848 #配置中心nacos地址
group: SEATA_GROUP #分组名 对应服务器端配置
namespace: f2dd13e4-1886-4b27-b6d5-e8332875d7e5 #命名空间 对应nacos中配置中心seata
service:
vgroup-mapping:
my_test_tx_group: default #事务分组
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