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Section Seventh: Service Discovery and load balancing
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This article will focus on the important parts of the two microservices architectures: Service discovery and load balancing. And how they helped us 2017 years of constantly demanding horizontal expansion capacity
Brief introduction
Load balancing and fame. Service discovery requires
, the current address of the user (terminal) is always stored in the SIP server. When the user is called, the SIP server is able to send the SIP request to the user's current address.3, Physical NetworkSip UA, the user agent, is the most basic SIP entity, which is usually the user terminal. Ideally, session creation between users can be done through SIP UA. (see section 2nd, Session Initiation and management in SIP basic functionality).However, in order to support SIP mobility, and other advanc
, the cluster policy is availablecluster, and the invoker that is called by Availablecluster all object registrations is disguised as a invoker5. Create a remote service proxy through the proxy factory return to the use of Proxyfactory.getproxy (Invoker);Procotol.refer (interface, URL) process for referencing services1. After Protocollistenerwrapper, protocolfilterwrapper because it is a registry URL call Registryprotocol.refer2. Get the Registry agreement zookeeper, Redis, or Dubbo, and obtain
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Status of several international domain names
1. Active
Normal
2. registryhold
The Registry is suspended. The domain name is not resolved and cannot be used properly. You can renew it;
3. registrylock
The Registry is locked and the domain name is resolved. It is in normal use and cannot be changed. You can renew it;
4. registrarhold
The Registrar is suspended and resolution is stopped. It cannot be used normally. You can renew it;
5. registrar
What is squatting:The so-called squatting, simply divided, there are two kinds of means of squatting:1, a domain name has never been registered backorder, in this case, is generally the domain name of the registrant to foresee the potential value of the domain name, before others think of the domain name registered. This scope contains some names, intellectual property rights, etc. for well-known brands, well-known groups or individuals. This type of squatting is highly predictive.2, to a once r
First of all, talk about the problem of language packs1. Install the language pack and install it through composerComposer require "Overtrue/laravel-lang:dev-master"2, after the successful installation. To change the configuration in config/app.php,' Illuminate\translation\translationserviceprovider'Switch 'overtrue\laravellang\translationserviceprovider' ,3. Change the configuration againPHP return [ "min" =>[ "Numeric" = "=" Password at least: Min. ",
First, the preparation of the site materials: domain name and spaceA web site is usually composed of a domain name and a bunch of web page files:
Domain name: is "Three tatsu don't slip what point pit" Such things (such as www.yihui.name, not strict, see something), administered by a nonprofit organization, ICANN, but it authorizes a number of Registrars (registrar) to sell domain names, and you can register them with the top-level domain names
China's domain name market is shrouded in gloom. The low price of domain names, the use of unfair competition, domain name speculation suspected fraud exposure, this year around the domain name market this series of bad for China's strong growth in the domain name market to give a head-on attack.
Chairman Zhang is a pivotal figure in China's domain name market, he is very low-key, and his innovative brother Zhang Xiangning different, he rarely received media interviews. In the media age, where t
Whois is simply a database that queries whether the domain name has been registered, as well as the details of the registered domain name (such as domain name owner, domain name registrar, domain name registration date, and expiration date, etc.). Through the domain name WHOIS server query, you can query the contact information of the domain owner, as well as the registration and expiration time. In general, WHOIS information is real information, thro
forum. When buying 20,000 IP, the transaction finished one months later, became 10,000 IP.
scam Big exposure:
The common scam in Domain name transactions:1 not all the domain name, domain name can not transfer;2) or the domain name soon expired, can not renew the fee,3 after the domain name transaction to find reasons not to transfer;4 Domain name and small company registration, can not transfer, or small companies can not contact;5 Domain name transaction process, as well as another domain n
We knew a few years ago that Google is the top registrar of international domain names, and you should know that there are no more than 200 international top-level domain registrars worldwide. One question here is: Why does Google not provide domain registration services? The question goes back 7 years, and after Google became a top-tier registrar, it released a startling message: Google became a domain
standard WAPI does have its own unique advantages in terms of security, which also enables WAPI to have enough "Confidence" in the promotion and popularization ".
The confidentiality system of WAPI includes two parts: WAI authentication and key management, and WPI data transmission protection. Compared with traditional transmission technologies such as WEP encryption and IEEE 802.11i, WAPI does greatly enhance the security at the technical level. It
environments, Wi-Fi base stations and hotspots are also very common. Therefore, WAPI is often interpreted as a way for domestic operators to protect their own interests, because once mobile phone Wi-Fi is released, users may make phone calls over the network, the traditional billing mode will be challenged.
However, with the launch of the "C + W" Tianyi business by China Telecom, carriers do not care about the impact of Wi-Fi, who else will worry about the problems caused by the popularity of W
confidentiality system of WAPI includes two parts: WAI authentication and key management, and WPI data transmission protection. Compared with traditional transmission technologies such as WEP encryption and IEEE 802.11i, WAPI does greatly enhance the security at the technical level. It adopts a two-way authentication mechanism, but the authentication process is more convenient. Users and wireless access locations are in the same status, and the clien
Software Environment
VS Update3 This section explains how to create a Web API project by using an example The first step, open vs, through the File menu, the new Project command, the approximate steps such as: 2nd, in the pop-up dialog, select the Web under the C # template on the left, and then choose the first selection based on the traditional Framework4.5.2, roughly as follows: The 3rd step, based on the previous step, selects the WebAPI template, which automatically references th
you can use the Git:push command to upload the code. But something strange happened and there was a mistake. Checked, there should be no host (master), but sublime git does not support adding parameters, so you can only go back to the command line to execute the push command.Successfully completed.Then modify the file and try the push from sublime Text again. From add to commit to push, there was no problem and the push was successful.Once again on GitHub, you can see the new files and the cont
Microsoft SQL Server compact 4.0 is a free embedded database. Software developers can use it to build ASP. NET websites and Windows desktop applications.
Program. SQL Server compact 4.0 has the following advantages: it occupies a small amount of space and supports deploying binary files in the application folder. It is easy to use Visual Studio and webmatrix for application development, and seamlessly migrate the Architecture and Data to SQL Server.
Installation:
Install
, now called agents are not agents in nature, more with the nature of the dealer, there are some of the two confused, that is, agents, sometimes need to take money to buy goods, very few pure sense of the agent, said it is a certain agent of the dealer more appropriate. "Agent" actually has two kinds of nature, its main nature is vague, its both agent behavior, and sales behavior. But in more cases should be reflected in the nature of the seller, according to the definition of the former agent,
It is very easy to install PHP in Windows 7. We recommend that you use WPI and choose php5.2 for installation through the framework and runtime:
MongoDB is integrated with PHP in the form of PHP extension library. dll.
Download the DLL file of the corresponding PHP version in windows at the following URL:Http://cn.php.net/manual/en/mongo.installation.php#mongo.installation.windows
Select a PHP version based on your PHP version and whether it is
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