syslog best practices

With the help of node practices WebSocket, node practices WebSocket I. WebSocketOverview WebSocket protocol,It is based on TCP rather than HTTP. As follows: Ws: // 127.0.0.1 or wss: // 127.0.0.1 is a WebSocket request. Note:WsWebSocketProtocol, wssIndicates encrypted WebSocketProtocol. WebSocketThe advantage is that the server and the client can communicate with each other in real time. Unlik

Linux Message Queue practices (1) and linux Message Queue practicesBasic concepts of Message Queue Message Queue provides a method to send a piece of data from one process to another (limited to local) Each data block is considered to be of a type. The data block received by the recipient process may have different types of values. Message queues have the same limitations as queues, that is, the maximum length of each message is limited (MSGMAX), and

[IOS] Code for device screen judgment best practices solution discussion, ios Best Practices Currently, the development project uses code to write the UI for historical reasons, so it is inevitable to determine the device size. Currently, I am doing this to determine the size. First, define an enumeration class that contains all the dimension types: // The screen size Enumeration type typedef NS_ENUM

Best practices for javascript simulation and javascript Best Practices 1: how to simulate a class Define a class and a new class object in the sencha touch2 series. Ext. define ("Animal", {config: {name: null}, constructor: function (config) {this. initConfig (config) ;}, speak: function () {console. log ('What do data') ;}}) var my = Ext. create ("Animal", {name: "bb"}) my. speak (); In the code above, th

Data Structure practices-circular double-stranded table applications and data structure practices This article focuses on the basic series of online courses on data structures (2): practical projects of linear tables. [Project-circular double-stranded table application]The non-empty linear table ha and hb are represented by the cyclic double-chain table of the lead node. Design an algorithm Insert (ha, hb,

Thoughts on MongoDB application practices and practicesI recently studied MongoDB and used it to quickly build a flexible no schema storage system. Through demonstration and analysis, this article uses MongoDB to quickly build a storage system with good performance and availability to meet the needs of hundreds of millions of users. In the selection of NoSQL databases, You need to integrate with your ownData Model,Access MethodAndCostTrade off ).Mongo

Prototype design practices and prototype practices In the instructor management system project, start learning and use Axure for prototyping. Although Axure can be used for some simple interface design and interactive design, I still feel that what I have mastered is only a tiny part of Axure's powerful functions. When talking about prototype Design, you have to mention the word UCD (User Centered Design ).

JQuery practices image effects-zhuodi tornado and jquery practices(-1) Preface This idea was copied by others, but the code was coded by myself. First of all, I would like to pay tribute to this predecessor. I used chrome49, firefox43, IE9, and jquery3.0. Use the code to avoid taking words out of context. The image resources used are on my Baidu cloud disk.Http://yun.baidu.com/share/link? Consumer id = 7104

Spring AOP practices and Spring AOP practices Spring AOP and AspectJ are two different implementations of AOP. The former is a dynamic proxy, and the latter is a static proxy. The role of AOP is to separate concerns. It separates business-independent logic and encapsulates it into modules to decouple core businesses from general logic. First, there are several concepts to understand: Aspect (aspect):

Jdk1.6 VM tuning practices (1) and jdk1.6vm tuning practices Linux 2 CPU 16 GB memory, tomcat7 JAVA_OPTS = "-Xmx1024m-Xms1024m-Xss1024K-XX: PermSize = 512 m-XX: MaxPermSize = 1024 m"Cygwin = false Heap memory: Xmx, xms is up to 1/4 of the physical memory size, which saves xms and xmx allocation. Xss, single thread Permsize: permanent partition size, Maxpermsize: up to 1/4 of the physical memory size

Detailed description of Mysql master-slave synchronization configuration practices, detailed description of mysql master-slave practices 1. Introduction I have written an article about the principle of Mysql master-slave synchronization. I believe that all the shoes I have read in this article are in full swing. Have you tried it? Today, we have a master-slave mysql synchronization practice! 2. Environment

Best practices for Android graffiti and best practices for android In Android, there are two ways to implement gesture plotting. One is to draw directly on the View, but to use SurfaceView. There are some differences between the two. View: display View, built-in canvas, provides graphics rendering functions, touch screen events, button event functions, etc. You must update the screen in the main UI thread,

Python practices (five lists and dictionaries) and python practices After learning the list and the tuples, the next step is the string operation, which is, this process is really cool, otherwise it is easy to be broken down by fragmented concepts. String For the methods in the string, -- X -- is similar to this method with two underscores (_), which is internal-oriented and cannot be used. Name. capitaliz

SolrJ API official documentation best practices, solrj Best Practices The following content is translated from the Solr Wiki official document. It is copyrighted and can be reproduced at will. Solrj is a Java client that accesses solr. It provides a java interface for adding, updating, and querying solr indexes. This page introduces the latest version of SolrJ in Solr 1.4.x and its usage in the war pack

JVM Tomcat performance practices, jvmtomcat practices This section only introduces the actual practice. For detailed theoretical parameters, please use Baidu. Required tools: linux Server Jmeter testing tool xshell a web application The JVM parameter of Tomcat can be configured in catalina. sh, And the. bat file can be configured in window. Configuration 1: Here I have configured a gc log Path:/home/log/g

Detailed explanation of Python algorithm application practices and python algorithm practices Stack) Stack, also known as stack, is a special ordered table. Its insert and delete operations are performed at the top of the stack and operate according to the rules of first-in-first-out and later-in-first-out. As shown in For example, the first bullet into the magazine is the last one when the gun is fired, a

Python learning practices ------ small knowledge point record (1), python learning practices 1. A Chinese Character corresponds to 1 in unicode encoding, 2 in gbk encoding, and 3 in UTF-8 encoding. 2. In tuple, if there is only one element, there must be a comma. ('One ',) 3. If a function in Python does not return a value, None is returned by default. 4. view the keyword list in Python: import keyword;

CSS non-ASCII character best practices, cssascii Best PracticesProblem scenarios Attribute values of non-ASCII characters are often used when writing styles, as follows:? 1234567891011 .hot_list .sign_discount:before { content: "Full reduction"; padding: 0 8px; margin-right: 7px; font-size: 12px; line-height: 14px; color: #fff; text-align: center; border-radius: 11px;} However, garbled characters may sometimes appear in Chrome: In

Best practices of observer mode on android and best practices of android In the previous article, I introduced the definition and some basic concepts of the observer mode. The observer mode is widely used in android development, such as monitoring and broadcasting of android button events, it can be used in any mode similar to news-subscription. In a sense, android is a bit like a java ee web page. You mus

Best practices for retrieving and cropping images from a camera (album), best practices for tailoring In the process of developing some apps, we may involve Avatar processing, such as getting an Avatar from a mobile phone or album, cropping it into an avatar you need, and setting or uploading an avatar. There are too many materials related to the Internet, but there are often various problems in practical a