//file.conf

transport {
  # tcp udt unix-domain-socket
  type = "TCP"
  enableRmClientBatchSendRequest = true
  enableTmClientBatchSendRequest = true
  #NIO NATIVE
  server = "NIO"
  #enable heartbeat
  heartbeat = false  //设置为false会引起channel不断重复删除和注册
  #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"
  }
}
service {
  #vgroup->rgroup
  vgroupMapping.my_test_tx_group = "default"
  #only support single node
  #default.grouplist = "127.0.0.1:8091"
  #degrade current not support
  enableDegrade = false
  #disable
  disable = false
}

client {
   rm {
      asyncCommitBufferLimit = 10000
      lock {
        retryInterval = 10
        retryTimes = 1
        retryPolicyBranchRollbackOnConflict = true
      }
      reportRetryCount = 1
      tableMetaCheckEnable = false
      reportSuccessEnable = true
   }
   tm {
        defaultGlobalTransactionTimeout = 180000
        commitRetryCount = 1
        rollbackRetryCount = 1
   }

   undo {
      dataValidation = true
      logSerialization = "jackson"
      logTable = "undo_log"
   }
   log {
      exceptionRate = 100
   }
}

上面是我file.conf文件，在transport.heartbeat=false时channel会不断重复删除和注册。seata服务器控制台输出的日志如下：

上图表现为channel不断变成 inactive，然后被删除，并且 TM 不断注册，感觉应该是个bug。