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Arthas It is an open-source Java diagnostic tool of Alibaba. Arthas supports JDK 6 +, Linux/Mac/Windows, adopts command-line interaction mode, and provides rich Tab automatic completion functions to further facilitate problem location and diagnosis. Arthas 3.0 uses OGNL expression evaluation library. See OGNL expression official website ...

What is RPC RPC, English RangPaCong, Chinese let the reptile, designed to open the way for the reptile, kill everything every second, and let the reptile unobstructed! Just kidding, in fact, RPC is a Remote Procedure Call, which is a technical idea rather than a specification or protocol. In fact, the birth of RPC is inseparable from the de ...

brief introductionWe know that channel is the bridge between ByteBuf and Event in netty. During the creation of netty service, whether it is the Bootstrap on the client side or the ServerBootstrap on the server side, we need to call the channel method to specify the corresponding channel type.So what are the types of channel s in netty? How do ...

1, Foreword Through the previous study, we are familiar with capturing packets from the network card. Now we will learn how to process packets. WinPcap provides us with many API s to save packets flowing through the network to a heap file and read the contents of the heap. The format of this file is very simple, but it contains the binary cont ...

1, nRF24L01 + module introduction   nRF24L01 + is a single-chip 2.4GHz transceiver suitable for ultra-low power wireless applications. NRF24L01 + is designed to operate in the global ISM band of 2.400-2.4835GHz.   to design a radio system using nRF24L01 +, only a single chip microcomputer (microcontroller) and some external pas ...

What is RPCRPC, English RangPaCong, Chinese let the reptile, designed to open the way for the reptile, kill everything every second, and let the reptile unobstructed!Just kidding, in fact, RPC is a Remote Procedure Call, which is a technical idea rather than a specification or protocol. In fact, the birth of RPC is inseparable from the developm ...

Mysql barrier free and easy learning (IV) addition, deletion, modification and query of Mysql, CRUD quick entry Mysql barrier free learning series Mysql barrier free and easy learning (I) installation and configuration under Linux Mysql barrier free and easy learning (II) database tool DataGrid download and indefinite trial Mysql barrier f ...

zookeeper introduce zookeeper: provide coordination service for distributed framework, file system + notification mechanism Working mechanism The distributed service management framework designed based on the observer mode is responsible for storing and managing the data everyone cares about, and then accepting the registration of observers ...

In our large screen visualization project, we often use a variety of charts. Compared with the traditional table display and boring text description, the chart display makes the user look more intuitive and the data display more clear at a glance. Based on svg drawing technology and front-end technology stack vue, this paper briefly expounds so ...

Vue 3.0 1, Introduction to Vue3 1. Vue3 introduction September 18, 2020, Vue JS release version 3.0, code: One Piece (pirate king) 2. What does vue3 bring Performance improvement Package size reduced by 41%55% faster for initial rendering and 133% faster for update rendering54% less memory Upgrade of source code Using Proxy instead o ...