原文http://www.cnblogs.com/wengyuli/archive/2010/12/27/1918109.html
在最近的开发中，总是发现人数一多就会有用户莫名其妙的界面卡死，或者直接掉线的情况，不知道是什么原因，由于项目采用的是netTcp绑定，猜想可能是并发连接的问题。于是查了一下:
在windows7中，并发连接数默认是10
代码
<
binding
name
="netTcpBindConfig"
closeTimeout
="00:30:00"
openTimeout ="00:30:00" receiveTimeout ="00:30:00" sendTimeout ="00:30:00"
transactionFlow ="false" transferMode ="Buffered" transactionProtocol ="OleTransactions"
hostNameComparisonMode ="StrongWildcard" listenBacklog ="10"
maxBufferPoolSize ="2147483647" maxBufferSize ="2147483647" maxConnections ="10"
maxReceivedMessageSize ="2147483647" >
openTimeout ="00:30:00" receiveTimeout ="00:30:00" sendTimeout ="00:30:00"
transactionFlow ="false" transferMode ="Buffered" transactionProtocol ="OleTransactions"
hostNameComparisonMode ="StrongWildcard" listenBacklog ="10"
maxBufferPoolSize ="2147483647" maxBufferSize ="2147483647" maxConnections ="10"
maxReceivedMessageSize ="2147483647" >
将项目移植到windows server2008上之后，并发连接数需要改变一下，于是变成
代码
<
binding
name
="netTcpBindConfig"
closeTimeout
="00:30:00"
openTimeout ="00:30:00" receiveTimeout ="00:30:00" sendTimeout ="00:30:00"
transactionFlow ="false" transferMode ="Buffered" transactionProtocol ="OleTransactions"
hostNameComparisonMode ="StrongWildcard" listenBacklog ="10"
maxBufferPoolSize ="2147483647" maxBufferSize ="2147483647" maxConnections ="1000"
maxReceivedMessageSize ="2147483647" >
openTimeout ="00:30:00" receiveTimeout ="00:30:00" sendTimeout ="00:30:00"
transactionFlow ="false" transferMode ="Buffered" transactionProtocol ="OleTransactions"
hostNameComparisonMode ="StrongWildcard" listenBacklog ="10"
maxBufferPoolSize ="2147483647" maxBufferSize ="2147483647" maxConnections ="1000"
maxReceivedMessageSize ="2147483647" >
但是问题依然存在，就想到是不是需要配置一下行为，于是将行为的连接数量也改变了
代码
<
behavior
name
="JXSoft.JPlan.WCFService.Behavior"
>
< serviceThrottling maxConcurrentCalls ="1000" maxConcurrentInstances ="1000" maxConcurrentSessions ="1000" />
< serviceMetadata />
< serviceDebug includeExceptionDetailInFaults ="true" />
< dataContractSerializer maxItemsInObjectGraph ="6553600" />
</ behavior >
< serviceThrottling maxConcurrentCalls ="1000" maxConcurrentInstances ="1000" maxConcurrentSessions ="1000" />
< serviceMetadata />
< serviceDebug includeExceptionDetailInFaults ="true" />
< dataContractSerializer maxItemsInObjectGraph ="6553600" />
</ behavior >
问题解决，没有再出现过卡死或者掉线情况.
