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How many system resources will be held for keeping 1,000,000 websocket open? [closed]

... is not unique to WebSockets since WebSockets are fundamentally long-lived TCP sockets with a HTTP-like handshake and minimal framing for messages. The real question is: could a single server handle 1,000,000 simultaneous socket connections and what server resources would this consume? The answer i...
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Why is it said that “HTTP is a stateless protocol”?

... @Andrew: HTTP is not "built on" TCP, and TCP's state is not HTTP's. The two are entirely separate protocols at different layers in the stack. You could serve HTTP over named pipes if you wanted, or even by sending files around, if you got enough masochists ...
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从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术

...OSI模型的第四层——传输层之上,传输层上有我们熟悉的TCP/UDP,LVS支持TCP/UDP的负载均衡。 LVS的转发主要通过修改IP地址(NAT模式,分为源地址修改SNAT和目标地址修改DNAT)、修改目标MAC(DR模式)来实现。 那么为什么LVS是在...
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WCF timeout exception detailed investigation

...ient. In the Options when you start the capture, set the capture filter to tcp http and host service.example.com - this will reduce the amount of irrelevant traffic. If you can, modify your client to notify you the exact start time of the call, and the time when the timeout occurred. Or just moni...
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Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术

...下表: SO_DONTLINGER SO_KEEPALIVE SO_LINGER SO_OOBINLINE TCP_NODELAY datagram socket ( SOCK_DGRAM )不支援這些選項 SO_DEBUG SO_DONTROUTE SO_RCVBUF SO_SNDBUF TCP_NODELAY 有些廠商的WinSock TCP/IP協定核心不支援這些選項 SO_ACCEPTCONN SO_ERROR ...
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How would one write object-oriented code in C? [closed]

...n = &rs232Open; : : commRs232.write = &rs232Write; tCommClass commTcp; commTcp.open = &tcpOpen; : : commTcp.write = &tcpWrite; Of course, those code segments above would actually be in a "constructor" such as rs232Init(). When you 'inherit' from that class, you just change the po...
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App Inventor 2 试验组件 · App Inventor 2 中文网

...ce,description) 使用给定的描述编辑源图像。图像的可编辑区域应具有透明的Alpha值,源可以是 Canvas 组件、Image 组件或字符串代表文件的路径。 使用遮罩编辑图像(imageSource,遮罩源,提示) 使用给定的描述编辑 遮罩源。图像的可...
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Is there a way for multiple processes to share a listening socket?

...that it does not close will continue to be shared, and (for example with a TCP listening socket) can be used to accept() new sockets for clients. This is how many servers, including Apache in most cases, work. On Windows the same thing is basically true, except there is no fork() system call so the...
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Server is already running in Rails

... using command ps -aef | grep rails OR by this command sudo lsof -wni tcp:3000 then kill -9 pID OR use this command To find and kill process by port name on which that program is running. For 3000 replace port on which your program is running. sudo kill -9 $(lsof -i :3000 -t) Old Solut...
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Catch-22 prevents streamed TCP WCF service securable by WIF; ruining my Christmas, mental health

I have a requirement to secure a streamed WCF net.tcp service endpoint using WIF . It should authenticate incoming calls against our token server. The service is streamed because it is designed to transfer large amounts of data n stuff. ...