node js monitoring tools

I'm going to play node recently.As we all know, in the front-end, debugging code has a good natural tools-browser! Chrome, in particular, makes the Jser a duck's play. But to node, the situation is not the same, JS code is no longer running in a simple browser, but directly running in the operating system, turned into

Original: http://www.unixmen.com/iptraf-tcpudp-network-monitoring-utility/ enock Seth Nyamadortranslation: Lctt https://linux.cn/article-5577-1.html Translator: GolinuxIptraf is a ncurses-based IP LAN monitoring tool that generates various network statistics, including TCP information, UDP statistics, ICMP and OSPF information, Ethernet payload information, node

Most of the node. JS-based apps are executed in the browser,For example, powerful debugging tools Node-inspector.Node-inspector is an open source online debugging tool based entirely on node. JS, providing powerful debugging capab

Detailed description of the environment variable process. env in Node. js, node. jsprocess. env Preface We have been working with O m gg to deploy the project in the last two days. One problem is our dev, uat, and product environment. Because it is the frontend and backend separation, the domain name of the backend interface will be switched during development a

Node. js Basic module http and webpage analysis tool cherrio implement crawler, node. jscherrio I. PrefaceIt is a crawler, but it does not use third-party class libraries related to crawlers. It mainly uses the node. js Basic module http and the webpage analysis tool cherrio

virtual machine, take a look at my tutorial-"How to install Debian under a VirtualBox VM".Top650) this.width=650; "class=" lazy "width=" 690 "height=" 513 "src=" http://static.webhek.com/techug-res/uploads/2015/ 09/aa213e02jw1eukofv14k7j20lo0g4jz1.jpg "style=" border:0px;vertical-align:middle;height:513px;margin-left:-70px ; "/>As one of the more easy-to-use Linux system monitoring tools, the top command t

I/O wait for Linux system monitoring and diagnosis tools Directory 1. Problem:2. troubleshooting:2.1 vmstat2.2 iostat2.3 iotop3. The last words: a different path1. Problem: Recently, log real-time synchronization was performed. Before the release, the online log stress test was performed. The message queue and the client and the local machine are normal, but I did not expect that after the second log is upl

= Form.uploaddir +Avatarname; Console.log (NewPath); Fs.renamesync (Files.fulAvatar.path, NewPath); // Renaming }); Res.locals.success= ' Upload successful '; Res.render (' Index ', {title:title}); }); Module.exports= Router;　　Note: Create the Avatar folder in the public folder for file storageRun results1. Add 8000-port monitoring to the App.js　　2.cd to the project root directory, run the node

Use node to write your own cli tools. When receiving a new project, you need to plan the project directory before development, create files one by one, set up the sass compiling environment, and download libraries such as jquery and Swiper... these preparations take a lot of time. Every time you create a project, you will encounter the same problem. Will you repeat it again?It's time to make a change: write

of the WebSocket protocol, he has almost the same as the client browser WebSocket API events, only to connect, disconnect, message, Errors and other events, so that the application development is very flexible. Example: Building a real-time monitoring system with websocket and node. jsAfter websocket through the browser and the server, we can try to build a real-world application, the real-time

connection interrupt request, or confirmation of a previous connection interrupt requestFin-wait-2: Waiting for connection interrupt request from remote TCP www.2cto.comClose-wait: Waiting for a connection interrupt request from a local userCLOSING: Waiting for remote TCP to confirm connection interruptionLast-ack: Waiting for acknowledgement of the original connection interrupt request to the remote TCPTime-wait: Wait enough time to ensure that the remote TCP receives a connection interrupt re

Need to monitor Linux server system performance? Try these tools built in or attached to the system below. Most Linux distributions are equipped with a large number of monitoring tools. These tools provide metrics that can be used to obtain relevant information and system activities. You can use these

, avoiding repeated loading. Supervisor can help you implement this feature by monitoring your code changes and automatically restarting node. js. The easy way to use it is to first use NPM to install Supervisor:$npminstall-gsupervisorStart app.js with the Supervisor command:$supervisorapp. js"Figure" Multi-threaded sy

Need to monitor Linux server system performance? Try these tools built in or attached to the system below. Most Linux distributions are equipped with a large number of monitoring tools. These tools provide metrics that can be used to obtain relevant information and system activities. You can use these

) { return x + y;}But you can use it too, JavaScript has no opinion, although the result is unreasonable:SUM (+, ' hello '); Result-100helloSo, we use TS such a qualification, to ensure that the above call is not compiled (the input is number, the return must be number:function sum (x:number, Y:number): number { return x + y;}Because we firmly believe that summing a number and a string is not a sensible requirement--and that the result of sum is credible.class ExampleIn

heavily integrated languages such as Java or C #, you'll be bothered, most of the new node developers are using the ' flow ' debug mode, and from this moment your best friend is Console.log. But there are still more common debugging methods to replace, node. JS has built in a debugger you can call Node debug, but I pr

. Setting Environment variablesTo see "System variables", there should be "D:\PROGRAMFILES\NODEJS;".See "User Variables" with "C:\USERS\PC\APPDATA\ROAMING\NPM".If not, add it yourself.3. Run node. jsOpen "All Programs" and open "node. js command Prompt".WIN8 environment "win+ R" opens the command to run the window. The same is true if you post the command below.c

as part of the nonprofit foundation and Sencha lab so that anyone could contribute to him. Sencha-based application monitoring 2.0 supports both Ext JS (4.x) and Sencha Touch (2.x) applications, and is now ready for use. Note: Search for App Inspector in the Chrome App market to find this extension. Function The most difficult part of Sencha application debugging is that browser developers cannot unders

Munin installation and configuration can refer to the first article:[Linux Utilities] Installation and configuration of Linux monitoring tools Munin http://www.cnblogs.com/rond/p/3757804.htmlThe result of Munin is shown in HTML. So the result is very simple, just need to deploy a Web server. But if you need to look at the results, you need to configure them.This post is divided into 2 sections:1. Web serve

online service, you can try using trace,It is the node. js and micro-service monitoring solution developed by our company.Using the build systemAs much as possible to automate everything. There is nothing more boring and irritating than letting development do what should be done by grunt, which is not only a waste of time, but also meaningless. Today Jvavascript