Programmer Think

Network foundation, socket programming It's not popular. For me, it's really an old-fashioned concept. python Network Programming Beginner level chapter, Advanced 1, Realize TCP communication 1. TCP protocol TCP/IP(Transmission Control Protocol/Internet Protocol), i.e. transmission control protocol / inter network protocol, is a connec ...

1. Network card binding principle Under normal circumstances, the working mode of the network card is Direct Model. In this mode, the network card only receives frames whose destination address is its own Mac address. Other data frames are filtered out to reduce the burden of the driver. However, the network card also supports another hybrid m ...

When compiling the Rust project on raspberry pie, I was stuck in update Crites, of course, because of some force majeure So try installing v2ray on raspberry pie The following is the tossing process, and finally success Two methods are provided here. The first method is relatively simple but unsuccessful (there should be a problem with the ste ...

1, Background Traditional call making process: A calls B and invites B to establish an invitePhone B rings and phone A can hear the ringPhone B indicates a reply, so the call is establishedOn the phone...Either party hangs up and the call ends The traditional telephone uses electromagnetic wave to transmit communication signals, but at this ...

objective Simple call and less repetitive code Independent of third-party libraries (only including Retrofit+Okhttp + collaboration) You can start immediately even if you don't understand the collaborative process at all (template code) What does it mean to write Kotlin code in Kotlin's way? Compare the following two codes: mViewModel.wx ...

1: Three layer switching technology 1.1: General summary: Layer 3 switch: 1: layer 3 switch = Layer 3 routing (but it can't be completely used as a router, generally only as a router) vlan Network segment connection) + Layer 2 switch is essentially a layer 2 device 2: The layer 3 routing function can be turned on and off. It can onl ...

UDP network programming one-way and two-way exception handling of Socket socket Socket It is used to describe the IP address and port. It is the handle of the communication chain. The application sends or responds to the network request through the SocketIt is the basic operation unit of network communication supporting TCP/IP protocol,It is ...

Linux Routing and Policy Routing OSI seven-tier reference model Routing Introduce Layer 2 switch, Layer 3 route: The exchange is located in the second layer of the OSI seven-layer model, where the data frame is encapsulated in an Ethernet header that records the mac address of the target network. Routing is located in the third layer of ...

original text Introduction to CNI The configuration of container network is a complex process. In order to meet various needs, container network solutions are also diverse, such as flannel, calico, Kube ovn, weave and so on. At the same time, the container platform / runtime is also diverse, such as Kubernetes, Openshift, rkt, etc. It will be ...

background From the perspective of source code, this paper mainly analyzes how the bottom layer of flink allocates tasks to each task executor for execution, as well as the thread model of task execution. It will involve how jobmaster distributes tasks to taskExecutor, the detailed process of task execution by taskExecutor, and the mailBox thr ...