/// <summary>
/// 归还连接池
/// </summary>
/// <param name="transport"></param>
/// <param name="id"></param>
public static void ReturnInstance(TTransportExt transport, string id)
{
if (!_tranPool.TryGetValue(id, out var transpool))
{
//可能服务连接池已经被移除
//transport.Transport.Flush();
if (transport.Transport.IsOpen)
{
transport.Transport.Close();
}
transport.Transport.Dispose();
transpool.InterlockedDecrement();
return;
//throw new ArgumentException("Connection Pool Exception");
}
if (transpool.TransportPool.Count > transpool.ServiceConfig.MaxIdle || !transport.Transport.IsOpen)//已经断开的连接直接释放
{
//Console.WriteLine($"DisposeTransport--{transpool.TransportPool.Count}");
//transport.Transport.Flush();
if (transport.Transport.IsOpen)
{
transport.Transport.Close();
}
transport.Transport.Dispose();
}
else
{
transport.LastDateTime = DateTime.Now; //记录最后访问时间
transpool.TransportPool.Push(transport);
}
transpool.InterlockedDecrement();
transpool.ResetEvent.Set();
}
/// <summary>
/// 初始化连接池
/// </summary>
public void InitTransportPool()
{
if (ServiceConfig != null && TransportPool != null && TransportPool.Count <= 0)
{
Task.Factory.StartNew(() =>
{
for (int i = 0; i < ServiceConfig.MinIdle; i++)
{
try
{
var transport = new TSocket(ServiceConfig.Ip, ServiceConfig.Port, ServiceConfig.Timeout);
var tExt = new TTransportExt()
{
Transport = transport
,
Client = new BrokerService.Client(new Thrift.Protocol.TBinaryProtocol(transport))
,
LastDateTime = DateTime.Now
};
transport.Open();
TransportPool.Push(tExt);
}
catch {}
}
});
}
else
{
new ThriftException(ExceptionType.InitTransportPool, $"Please initialize ServiceConfig before calling InitTransportPool");
}
}
/// <summary>
/// 处理器
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string Invoke(Dictionary <string, string> input)
{
string output;
//失败计数器 N次 就直接返回异常
int error = 0;
reStart:
try
{
BrokerRequest brokerRequest = new BrokerRequest();
brokerRequest.Input.Add(input);
output = transport.Client.broker(request: brokerRequest, options: transport.TimeOut.GetCallOptions()).Reply; //如果连接不可用，会报IO异常(重试)
}
catch (Exception ex)
{
if (ex is RpcException)//连接不可用的时候 直接销毁 从新从连接池拿
{
var sEx = (RpcException)ex;
if (sEx.StatusCode == StatusCode.Unavailable || sEx.StatusCode == StatusCode.Aborted)
{
error++;
if (error == 100) //累计3 拿不到有效连接 抛出异常 移除（此值 只是一个参考）
{
GrpcFactory.RemoveServicePool(id);
throw sEx;
}
GrpcFactory.ReturnInstance(transport, id); //归还有问题链接
transport = GrpcFactory.BorrowInstance(id);
goto reStart;
}
else if (sEx.StatusCode == StatusCode.DeadlineExceeded)
{
GrpcFactory.ReturnInstance(transport, id); //归还有问题链接
}
}
throw ex;
}
return(output);
}
/// <summary>
/// 归还连接池
/// </summary>
/// <param name="transport"></param>
/// <param name="id"></param>
public static void ReturnInstance(TTransportExt transport, string id)
{
if (!_tranPool.TryGetValue(id, out var transpool))
{
transport.Channel.ShutdownAsync();
//可能服务连接池已经被移除
return;
}
if (transpool.TransportPool.Count >= transpool.ServiceConfig.MaxIdle ||
transport.Channel.State == ChannelState.Shutdown ||
transport.Channel.State == ChannelState.TransientFailure) //已经断开的连接直接释放
{
transport.Channel.ShutdownAsync();
}
else
{
transport.LastDateTime = DateTime.Now; //记录最后访问时间
transpool.TransportPool.Push(transport);
}
transpool.InterlockedDecrement();
transpool.ResetEvent.Set();
}
/// <summary>
/// 处理器
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string Invoke(Dictionary <string, string> input)
{
string output;
//失败计数器 N次 就直接返回异常
int error = 0;
reStart:
try
{
if (!transport.Transport.IsOpen)
{
transport.Transport.Open();
}
output = transport.Client.broker(input); //如果连接不可用，会报IO异常(重试)
}
//catch (TTransportException)
//{
// /*
// * 连接打开出错
// */
// ThriftFactory.RemoveServicePool(id);
// throw;
//}
catch (AggregateException)
{
ThriftFactory.RemoveServicePool(id);
throw;
}
catch (Exception ex)
{
if (ex is IOException)//连接不可用的时候 直接销毁 从新从连接池拿
{
var sEx = (SocketException)ex.InnerException;
if (sEx?.SocketErrorCode == SocketError.TimedOut)
{
if (transport.Transport.IsOpen)
{
transport.Transport.Close();
}
return(Connector.FailMessage(SocketError.TimedOut.ToString()));
}
if (sEx?.SocketErrorCode == SocketError.ConnectionReset || sEx?.SocketErrorCode == SocketError.Shutdown)
{
if (error == 100) //消耗完 线程池里面的 失效连接（此值 只是一个参考）
{
return(Connector.FailMessage(ex.Message));
}
if (transport.Transport.IsOpen)
{
transport.Transport.Close();
}
ThriftFactory.ReturnInstance(transport, id); //归还有问题链接
transport = ThriftFactory.BorrowInstance(id);
error++;
goto reStart;
}
}
output = Connector.FailMessage(ex.Message);
}
return(output);
}
public Request(string host, int port)
{
this.id = $"{host}:{port}";
disposed = false;
transport = ThriftFactory.BorrowInstance(id);
}
/// <summary>
/// 定时清理空闲链接
/// </summary>
/// <returns></returns>
internal static void CleanPoolLink()
{
try
{
List <TTransportExt> invalidLink = new List <TTransportExt>(); //无效连接
var nowDiff = DateTime.Now - Timespan;
_tranPool.AsParallel().ForAll(_ =>
{
var pool = _.Value;
//只有当 空闲线程存在 30秒没用的空闲连接 才做清理 。防止影响正在运行的 线程
if (pool.TransportPool.Count > pool.ServiceConfig.MaxIdle && pool.TransportPool.ToList().Exists(t => t.LastDateTime < nowDiff))
{
if (pool.TransportPool.ToList().Exists(t => t.LastDateTime < nowDiff))
{
var transportExts = new ConcurrentStack <TTransportExt>();
//有效连接
var validLink = pool.TransportPool.Where(t => t.LastDateTime >= nowDiff).ToList();
//无效连接
invalidLink.AddRange(pool.TransportPool.Where(t => t.LastDateTime < nowDiff).ToList());
transportExts.PushRange(validLink.ToArray());
pool.TransportPool = transportExts;
}
}
if (pool.TransportPool.Count < pool.ServiceConfig.MinIdle)
{
int numDiff = pool.ServiceConfig.MinIdle - pool.TransportPool.Count;
for (int i = 0; i < numDiff; i++)
{
try
{
var transport = new TSocket(pool.ServiceConfig.Ip, pool.ServiceConfig.Port, pool.ServiceConfig.Timeout);
var tExt = new TTransportExt()
{
Transport = transport
,
Client = new BrokerService.Client(new Thrift.Protocol.TBinaryProtocol(transport))
,
LastDateTime = DateTime.Now
};
transport.Open();
pool.TransportPool.Push(tExt);
}
catch {}
}
}
});
if (invalidLink.Count > 0)
{
foreach (var invalid in invalidLink)
{
try
{
if (invalid.Transport.IsOpen)
{
invalid.Transport.Flush();
invalid.Transport.Close();
}
invalid.Client.InputProtocol.Dispose();
invalid.Client.OutputProtocol.Dispose();
invalid.Transport.Dispose();
}
catch
{
//回收连接池
}
}
}
}
catch
{
//回收连接池
}
}
