/// <summary>
/// 探针发送ping 心跳包
/// </summary>
public static bool TestPingSendMessage()
{
bool isServerHelthOK = false;
try
{
//1 首先检查蜘蛛进程是否运行 如果全部蜘蛛进程都挂掉 那么立刻返回false
var isCrawlerRun = ShoppingWebCrawlerHostService.IsWebCrawlerHostProcessRunnning;
if (false == isCrawlerRun)
{
return(isServerHelthOK);
}
// 2 如果已经有了蜘蛛进程，那么监视主进程是否处于激活
using (var conn = new SoapTcpConnection(IPAddress, Port, 5))
{
var pingResult = conn.Ping();
if (pingResult == true)
{
Logger.Info("探针检测服务端返回正确：pong .");
}
isServerHelthOK = pingResult;
}
}
catch (Exception ex)
{
Logger.Error(ex);
}
return(isServerHelthOK);
}
/// <summary>
/// 向服务端发送消息，注册登记
/// 并分配端口
/// </summary>
/// <param name="cmd"></param>
/// <param name="data"></param>
public static int RegisterSlaveToMaster(string slaveIdentity)
{
var result = -1;
using (var conn = new SoapTcpConnection("127.0.0.1", GlobalContext.MasterSocketPort))
{
if (conn.State == ConnectionState.Closed)
{
conn.Open();
}
if (conn.Ping() == false)
{
return(result);
}
//发送soap
var paras = new RegisterPortArgument {
SlaveIdentity = slaveIdentity
};
string msg = JsonConvert.SerializeObject(paras);
SoapMessage sopMsg = new SoapMessage()
{
Head = CommandConstants.CMD_RegisterSlavePort,
Body = msg
};
var repResult = conn.SendSoapMessage(sopMsg);
if (repResult.Status == 1)
{
result = repResult.Result.ToInt();
}
}
return(result);
}
/// <summary>
/// 自身健康监测
/// </summary>
/// <param name="callbackHandlerOnFailed">失败的时候 执行的委托回调</param>
public void BeginSelfHelthCheck(Action <string> callbackHandlerOnFailed)
{
if (isRunningHelthCheck == true)
{
return;
}
//1 向此节点对应的端口 发送ping
//2 失败3次 定性为错误无效节点
Task.Factory.StartNew(() =>
{
while (true)
{
RunningLocker.CreateNewLock().CancelAfter(1000);
try
{
bool isBeUsed = SocketHelper.IsUsedIPEndPoint(this.Port);
if (isBeUsed == false)
{
if (counterStatusCheck >= 10)
{
this.IsActiveNode = false;
if (null != callbackHandlerOnFailed)
{
callbackHandlerOnFailed(this.Identity);
}
break;
}
else
{
counterStatusCheck += 1;
continue;//端口暂未开启
}
}
using (var conn = new SoapTcpConnection(this.IpAddress, this.Port, 4))
{
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
var result = conn.Ping();//发送Ping 命令，是否可以ping 通子节点端口
if (result != true)
{
//一旦超过3此ping 不通，表示这是一个坏节点，中集群中心移除此节点--进行回调通知
if (this.failCounter >= 2)
{
this.IsActiveNode = false;
if (null != callbackHandlerOnFailed)
{
callbackHandlerOnFailed(this.Identity);
}
break;
}
this.failCounter += 1;
}
}
}
catch (Exception ex)
{
this.IsActiveNode = false;
Common.Logging.Logger.Error(ex);
break;
}
}
});
}