dubbo实现自定义负载均衡

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智能开发者 2024-11-01 10:04:24

文章标签 dubbo实现自定义负载均衡分布式 linux java docker 文章分类 运维

前言

Seata 是一款开源的分布式事务解决方案，

下载对应版本的文件

-- zookeeper：3.6.1 （ https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/ ）

-- seata 1.4.0 ( https://github.com/seata/seata )

seata 可以直接下载已打包好的tar包，也可以直接下载源码本地打包启动。

修改配置文件

编辑 cong/registry.conf ，将注册和配置中心都改为 zk，并配置上本地zk的地址

registry {
  # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  type = "zk"
  loadBalance = "RandomLoadBalance"
  loadBalanceVirtualNodes = 10

  nacos {
    application = "seata-server"
    serverAddr = "127.0.0.1:8848"
    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 = 60000
    connectTimeout = 20000
    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 = "zk"

  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"
    apolloAccesskeySecret = ""
  }
  zk {
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 60000
    connectTimeout = 20000
    username = ""
    password = ""
  }
  etcd3 {
    serverAddr = "http://localhost:2379"
  }
  file {
    name = "file.conf"
  }
}

因为我们使用的是zk做配置和注册中心，所以不许配置 file.conf。

然后下载config.txt配置文件，如果是下载的源码，可以在script\config-center\config.txt 找到，编辑此配置文件，主要是修改db相关的url、username、password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.defaultGlobalTransactionTimeout=60000
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=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.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

导入seata配置到zk

这是到了关键的一步，将以上配置导入到zk的配置中心，我这里使用的最笨的方法，手动导入到ZK......

先启动zk,在zk的bin下双击zkServer.cmd脚本启动zk

dubbo实现自定义负载均衡_docker

在bin目录，按住 Shift 然后右击，在弹出的窗口选择在此处打开 PowerShell ,

在PowerShell窗口中输入 .\zkCli.cmd -server

dubbo实现自定义负载均衡_linux_02

出现如上页面，表示zk客户端访问成功。

输入 create /seata 创建seata节点

通过 ls / 查看已存在的节点

dubbo实现自定义负载均衡_linux_03

接下，依次创建配置文件中的每一个子节点，80多个比较累~

比如，第一个 transport.type=TCP ，转换为zk命令则是 create /seata/transport.type TCP

附上完整的命令，如果有会写cmd脚本的大佬，可以忽略这一步~

create /seata/transport.type TCP
create /seata/transport.server NIO
create /seata/transport.heartbeat true
create /seata/transport.enableClientBatchSendRequest false
create /seata/transport.threadFactory.bossThreadPrefix NettyBoss
create /seata/transport.threadFactory.workerThreadPrefix NettyServerNIOWorker
create /seata/transport.threadFactory.serverExecutorThreadPrefix NettyServerBizHandler
create /seata/transport.threadFactory.shareBossWorker false
create /seata/transport.threadFactory.clientSelectorThreadPrefix NettyClientSelector
create /seata/transport.threadFactory.clientSelectorThreadSize 1
create /seata/transport.threadFactory.clientWorkerThreadPrefix NettyClientWorkerThread
create /seata/transport.threadFactory.bossThreadSize 1
create /seata/transport.threadFactory.workerThreadSize default
create /seata/transport.shutdown.wait 3
create /seata/service.vgroupMapping.my_test_tx_group default
create /seata/service.default.grouplist 127.0.0.1:8091
create /seata/service.enableDegrade false
create /seata/service.disableGlobalTransaction false
create /seata/client.rm.asyncCommitBufferLimit 10000
create /seata/client.rm.lock.retryInterval 10
create /seata/client.rm.lock.retryTimes 30
create /seata/client.rm.lock.retryPolicyBranchRollbackOnConflict true
create /seata/client.rm.reportRetryCount 5
create /seata/client.rm.tableMetaCheckEnable false
create /seata/client.rm.sqlParserType druid
create /seata/client.rm.reportSuccessEnable false
create /seata/client.rm.sagaBranchRegisterEnable false
create /seata/client.tm.commitRetryCount 5
create /seata/client.tm.rollbackRetryCount 5
create /seata/client.tm.defaultGlobalTransactionTimeout 60000
create /seata/client.tm.degradeCheck false
create /seata/client.tm.degradeCheckAllowTimes 10
create /seata/client.tm.degradeCheckPeriod 2000
create /seata/store.mode file
create /seata/store.file.dir file_store/data
create /seata/store.file.maxBranchSessionSize 16384
create /seata/store.file.maxGlobalSessionSize 512
create /seata/store.file.fileWriteBufferCacheSize 16384
create /seata/store.file.flushDiskMode async
create /seata/store.file.sessionReloadReadSize 100
create /seata/store.db.datasource druid
create /seata/store.db.dbType mysql
create /seata/store.db.driverClassName com.mysql.jdbc.Driver
create /seata/store.db.url jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true
create /seata/store.db.user root
create /seata/store.db.password 123456
create /seata/store.db.minConn 5
create /seata/store.db.maxConn 30
create /seata/store.db.globalTable global_table
create /seata/store.db.branchTable branch_table
create /seata/store.db.queryLimit 100
create /seata/store.db.lockTable lock_table
create /seata/store.db.maxWait 5000
create /seata/store.redis.host 127.0.0.1
create /seata/store.redis.port 6379
create /seata/store.redis.maxConn 10
create /seata/store.redis.minConn 1
create /seata/store.redis.database 0
create /seata/store.redis.password null
create /seata/store.redis.queryLimit 100
create /seata/server.recovery.committingRetryPeriod 1000
create /seata/server.recovery.asynCommittingRetryPeriod 1000
create /seata/server.recovery.rollbackingRetryPeriod 1000
create /seata/server.recovery.timeoutRetryPeriod 1000
create /seata/server.maxCommitRetryTimeout -1
create /seata/server.maxRollbackRetryTimeout -1
create /seata/server.rollbackRetryTimeoutUnlockEnable false
create /seata/client.undo.dataValidation true
create /seata/client.undo.logSerialization jackson
create /seata/client.undo.onlyCareUpdateColumns true
create /seata/server.undo.logSaveDays 7
create /seata/server.undo.logDeletePeriod 86400000
create /seata/client.undo.logTable undo_log
create /seata/client.log.exceptionRate 100
create /seata/transport.serialization seata
create /seata/transport.compressor none
create /seata/metrics.enabled false
create /seata/metrics.registryType compact
create /seata/metrics.exporterList prometheus
create /seata/metrics.exporterPrometheusPort 9898

执行完以上命令后，输入 ls /seata 查看zk中seata所有配置节点。

dubbo实现自定义负载均衡_java_04