基于docker安装seata服务端

- 日理万妓 2022-10-08 16:16 102阅读 0赞

# **1、Server端 新建所需表** #

SQL官方地址：[https://github.com/seata/seata/blob/1.2.0/script/server/db/mysql.sql][https_github.com_seata_seata_blob_1.2.0_script_server_db_mysql.sql],将此链接内的表存储在mysql中(建议新建数据库)。

-- -------------------------------- The script used when storeMode is 'db' --------------------------------
    -- the table to store GlobalSession data
    CREATE DATABASE IF NOT EXISTS `seata` DEFAULT CHARSET utf8; 
    DROP TABLE IF EXISTS `global_table`;
    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_gmt_modified_status` (`gmt_modified`, `status`),
        KEY `idx_transaction_id` (`transaction_id`)
    ) ENGINE = InnoDB
      DEFAULT CHARSET = utf8;
    
    -- the table to store BranchSession data
    DROP TABLE IF EXISTS `branch_table`;
    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 = utf8;
    
    -- the table to store lock data
    DROP TABLE IF EXISTS `lock_table`;
    CREATE TABLE IF NOT EXISTS `lock_table`
    (
        `row_key`        VARCHAR(128) NOT NULL,
        `xid`            VARCHAR(96),
        `transaction_id` BIGINT,
        `branch_id`      BIGINT       NOT NULL,
        `resource_id`    VARCHAR(256),
        `table_name`     VARCHAR(32),
        `pk`             VARCHAR(36),
        `gmt_create`     DATETIME,
        `gmt_modified`   DATETIME,
        PRIMARY KEY (`row_key`),
        KEY `idx_branch_id` (`branch_id`)
    ) ENGINE = InnoDB
      DEFAULT CHARSET = utf8;

### 注：需要用到seata的客户端 ###

你那个数据库需要用到 分布式事务 就加入这个表 主要是用来回滚的 seata 官网有的

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 AUTO_INCREMENT=55 DEFAULT CHARSET=utf8;

# 2、配置文件 #

自定义配置文件需要通过挂载文件的方式实现，将宿主机上的 registry.conf 和 file.conf 挂载到容器中相应的目录。

registry.conf 和 file.conf这两个文件可以在官网github上找到https://github.com/seata/seata/tree/1.2.0/script/client/conf

本人将registry.conf 和 file.conf放在虚拟机/myconfig/seata-server/目录下。

以下为registry.conf

配置文件中存在两个标签registry(注册中心)和config(seata配置信息)。

registry(注册中心)使用的是nacos，所以registry内除了nacos外其他的均可删除，为了方便以后更改其他类型，所以未删除。

config(seata配置信息)，采用file类型配置，也可以使用nacos，以下采用file，文章末尾有采用nacos的简单介绍。

[root@worker1 config]# cat /docker/seata-server/config/registry.conf
    # 注：文中加#号配置的为需要修改的
    registry {
      # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
      type = "nacos"
     
      # 192.168.1.27虚拟机IP，用户名密码nacos采用默认的，所以下方都没配置
      # group、namespace等可以根据个人实际情况填写
      nacos {
        application = "seata-server"
        serverAddr = "192.168.1.27:8848"
        #group = "SEATA_GROUP"
        #namespace = ""
        cluster = "default"
        username = ""
        password = ""
      }
      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"
      }
      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
      type = "file" # 此处使用的是file，也可以使用nacos，但是使用nacos的话，需要将配置信息推送到nacos中（若使用nacos，文章末端有简单介绍，但是未测试）
     
      nacos {
        serverAddr = "127.0.0.1:8848"
        namespace = ""
        group = "SEATA_GROUP"
        username = ""
        password = ""
      }
      consul {
        serverAddr = "127.0.0.1:8500"
      }
      apollo {
        appId = "seata-server"
        apolloMeta = "http://192.168.1.204:8801"
        namespace = "application"
      }
      zk {
        serverAddr = "127.0.0.1:2181"
        sessionTimeout = 6000
        connectTimeout = 2000
        username = ""
        password = ""
      }
      etcd3 {
        serverAddr = "http://localhost:2379"
      }
      file {
        name = "file.conf" # 只要本地的registry.conf和file.conf在同级则不需要修改
      }
    }

以下为file.conf（在registry中配置的config是file才需要配置）

此文件中配置seata的一些基本配置，还有事务存储配置等。

存储模式(store)包含了file和db两种，由于官网在此文件中未标注mysql的配置说明，所以以下文件中比官方多一些存储模式的配置，以下采用db模式，将事务日志写入mysql中。

[root@worker1 config]# cat /docker/seata-server/config/file.conf
    
    # 注：下方存在#配置的地方为需要修改的
    transport {
      # tcp udt unix-domain-socket
      type = "TCP"
      #NIO NATIVE
      server = "NIO"
      #enable heartbeat
      heartbeat = true
      # the client batch send request enable
      enableClientBatchSendRequest = true
      #thread factory for netty
      threadFactory {
        bossThreadPrefix = "NettyBoss"
        workerThreadPrefix = "NettyServerNIOWorker"
        serverExecutorThread-prefix = "NettyServerBizHandler"
        shareBossWorker = false
        clientSelectorThreadPrefix = "NettyClientSelector"
        clientSelectorThreadSize = 1
        clientWorkerThreadPrefix = "NettyClientWorkerThread"
        # netty boss thread size,will not be used for UDT
        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
      vgroupMapping.my_test_tx_group = "default"
      #only support when registry.type=file, please don't set multiple addresses
      default.grouplist = "192.168.1.27:8091"  # 192.168.1.27为虚拟机IP
      #degrade, current not support
      enableDegrade = false
      #disable seata
      disableGlobalTransaction = false
    }
     
    store {
      ## store mode: file、db、redis
      mode = "db" # 存储模式为db模式
     
      ## 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"
    # 数据库信息配置,事务日志存储mysql地址
        url = "jdbc:mysql://192.168.1.27:13306/seata"
        user = "root"
        password = "root"
        minConn = 5
        maxConn = 30
        globalTable = "global_table"
        branchTable = "branch_table"
        lockTable = "lock_table"
        queryLimit = 100
        maxWait = 5000
      }
     
    }

# 3、启动seata服务端 #

[root@worker1 docker-yml]# cat seata.yml
    version: '3'
    services:
      seata:
        image: seataio/seata-server:latest
        container_name: seata-server
        environment:
          SEATA_IP: 192.168.40.199
          SEATA_PORT: 8091
        volumes:
          - /docker/seata-server/config/registry.conf:/seata-server/resources/registry.conf
          - /docker/seata-server/config/file.conf:/seata-server/resources/file.conf
          - /etc/localtime:/etc/localtime
        ports:
          - 8091:8091

# 4、查看注册信息 #

### 然后打开nacos即可看到seata-server的注册信息 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzMjA0MjE_size_16_color_FFFFFF_t_70][]

===============下方为registry.conf中config采用nacos的方法==================  
配置信息使用nacos方便修改。采用nacos其实就是将file中所有的配置信息，同步到nacos中，然后seata再通过nacos配置将配置信息读取到seata中。以后只需要修改nacos配置中心的内容即可。

官方地址：https://github.com/seata/seata/tree/develop/script/config-center

使用命令将config.txt中的配置信息推送到nacos中，然后在registry.conf中config配置为nacos进行拉取。

采用此方法需要拉取源码（nacos文件【这个文件中有nacos-config.sh方法】+config.txt），或者自己手动将config.txt中的信息添加到nacos中。

注意：registry.conf中config配置nacos的group、namespace需要实际情况一致。

1.首先咱们先把seata的项目通过git给下载到本地；[seata github地址][seata github]

![105485543df7c0272eac83a63260019c.png][]

2.修改config.txt配置文件

找到上图中的两个文件，并修改config.txt，使其符合自己当前的需求

除以下几个参数需要现在修改，其他参数可暂时不改，或后面再修改都行：

# 修改存储模式为数据库存储
    store.mode=db
    # 指定数据库为mysql，其他数据库类型根据自身情况修改
    store.db.dbType=mysql
    # 指定引擎，mysql8以下为com.mysql.jdbc.Driver，mysql8为com.mysql.cj.jdbc.Driver
    store.db.driverClassName=com.mysql.cj.jdbc.Driver
    store.db.url=jdbc:mysql://{ip}:3306/{db_name}?useUnicode=true
    store.db.user={db_user}
    store.db.password={db_password}

**注意**：大多数小伙伴只需要修改以上几个参数，其他参数可暂时不改  
整个config.txt文件配置有这么多参数：

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=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.sqlParserType=druid
    client.rm.reportSuccessEnable=false
    client.rm.sagaBranchRegisterEnable=false
    client.tm.commitRetryCount=5
    client.tm.rollbackRetryCount=5
    client.tm.degradeCheck=false
    client.tm.degradeCheckAllowTimes=10
    client.tm.degradeCheckPeriod=2000
    store.mode=file
    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://127.0.0.1:3306/seata?useUnicode=true
    store.db.user=username
    store.db.password=password
    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.host=127.0.0.1
    store.redis.port=6379
    store.redis.maxConn=10
    store.redis.minConn=1
    store.redis.database=0
    store.redis.password=null
    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.log.exceptionRate=100
    transport.serialization=seata
    transport.compressor=none
    metrics.enabled=false
    metrics.registryType=compact
    metrics.exporterList=prometheus
    metrics.exporterPrometheusPort=9898

3.将修改好的config.txt配置添加到nacos配置中心

通过ssh命令执行nacos-config.sh文件

sh nacos-config.sh -h {nacos服务的host} -u {nacos用户名} -w {nacos密码}

解析一下上述命令中参数的意思：
    [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password]

按照nacos服务请看上篇播客  
配置上传成功的截图：

![59016e3a8bba17c1a630532e3a4bbb4b.png][]

[https_github.com_seata_seata_blob_1.2.0_script_server_db_mysql.sql]: https://github.com/seata/seata/blob/1.2.0/script/server/db/mysql.sql
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzMjA0MjE_size_16_color_FFFFFF_t_70]: /images/20221005/463360ce53364e1eab378e28b6251af6.png
[seata github]: https://links.jianshu.com/go?to=https%3A%2F%2Fgithub.com%2Fseata%2Fseata
[105485543df7c0272eac83a63260019c.png]: /images/20221005/c0070349ab764bd29e0526b7f2020d6f.png
[59016e3a8bba17c1a630532e3a4bbb4b.png]: /images/20221005/a2427b39d00f424b824dffb399b2236c.png