Basic concepts of RabbitMQ and rabbitmq
Go to: http://blog.csdn.net/whycold/article/details/41119807About RabbitMQ
AMQP (Advanced Message Queuing Protocol) is an open standard for application layer protocols and is designed for Message-oriented middleware. Message-oriented middleware is mainly used for decoupling between components. message senders do not need to
Password
(2) Delete a user
Rabbitmqctl Delete_user Username
(3) Modify the user's password
Rabbitmqctl Change_password Username NewPassword
(4) View current user list
Rabbitmqctl list_users User Role
According to the individual understanding, the user role can be divided into five categories, Super Administrator, monitor, strategy-makers, general managers and others.
(1) Super Administrator (Administrator)
You can access the admin console (with manag
ArticleDirectory
1. What is rabbitmq?
2. Features of rabbitmq
3. rabbitmq Installation
4. Concepts of rabbitmq
5. Documentation
6. Client Version
1. What is rabbitmq?
Message Queue (MQ) is a type of applicationProgram. Applications write and retr
Server. Download the source code version of RABBITMQ from here:http://www.rabbitmq.com/server.html. The version I downloaded israbbitmq-server-generic-unix-2.7.1.tar.gz
There are many versions of RABBITMQ installed, and we use the Generic Unix version.
CD/
wget http://www.rabbitmq.com/releases/rabbitmq-server/v2.7.1/
1: Environment SelectionThe system for Ubuntu 15.04, I installed in the virtual machine inside the2:rabbitmqTABBITMQ 3.5.4 Download url:http://www.rabbitmq.com/3: InstallationIn the Ubuntu environment, it is recommended that you download the Deb installer directly, install it directly in Ubuntu package management, and install other dependent packages4: StartIf the Deb package is installed directly, it is started directly by default, or it can be started by sudo
RABBITMQ Installation:
1. RABBITMQ is based on Erlang, so you must first configure the Erlang environment. Install Erlang
Go to Erlang's website: http://www.erlang.org for downloadThere are two ways of installing:
1.1. Source Installation Method:
mkdir Erlang
cd Erlang
wget wget http://www.erlang.org/download/otp_src_18.0.tar.gz
tar-xzvf otp_src_ 18.0.tar.gz
cd otp_src_18.0.tar.gz
./configure--prefix=${e
mirror to the specific node in clusterRabbitmqctl rabbitmqctl set_policy ha-nodes "^nodes\." ' {"Ha-mode": "Nodes", "Ha-params": ["NodeA", "NodeB"]} 'HTTP API put/api/policies/%2f/ha-nodes {"pattern": "^nodes\.", "definition": {"Ha-mode": "Nodes", "Ha-params": ["NodeA" , "NodeB"]}Web UI Navigate to Admin > Policies > Add/update a policy.Enter "Ha-nodes" next to Name and "^nodes\." Next to Pattern.Enter "Ha-mode" = "nodes" in the first line next to Po
Introduction
Message Queuing now applies a lot to the Internet project, and the next blog post will delve into the implementation of MQ, and in this blog I'll explain how to install MQ under CENTOS7 and the problems that are encountered.
First step: Install Erlang
Because RABBITMQ is written in Erlang language, we first need to install Erlang
RPM-UVH http://www.rabbitmq.com/releases/erlang/erlang-18.1-1.el7.centos.x86_64.rpmStep two, install
1 RABBITMQ Knowledge Point 1.1 overall architecture diagram
Message producers post messages to Exchange, and Exchange routes producer-delivered messages to a queue in some sort of routing mechanism, and the message consumer gets messages from the queue for consumption .
1.2 Core Concepts 1.2.1 Server
Also known as broker, receiving client connections, implementing AMQP entity Services1.2.2 Connection
Connection, application services with broker's n
/rabbitmqsbin_dir=/opt/rabbitmq/sbin Man_dir=/opt/rabbitmq/man DOC_INSTALL_DIR=/OPT/RABBITMQ /doc Install
then go to the/usr/local/sbin/ directory to see if any of the following files
[Email protected] sbin]# pwd
/opt/rabbitmq/sbin
[email protected] sbin]# LL
Rabbitmqctl
RabbitMQ instance Tutorial: Java Implementation of Hello RabbitMQ World
RabbitMQ is actually very easy to implement Hello World. Only one server is needed to send messages, and another client can receive messages.
The overall design process is as follows:
The message producer sends Hello messages to the message queue, and the message consumer receives messages f
use the Generic UNIX version.
CD/
wget http://www.rabbitmq.com/releases/rabbitmq-server/v2.7.1/rabbitmq-server-generic-unix-2.7.1.tar.gz Download RABBITMQ
Tar zxvf rabbitmq-server-generic-unix-2.7.1.tar.gz-c/opt unzip to the specified folder
Cd/opt, establishing a soft link ln-s
directly to the admin page Click the Admin menu --The policies option on the right--the bottom left add/update a policyName is the name of the queue, pattern is a matching rule, such as write a ^yu is Yu start queue, ha-mode= What is to synchronize what queue, such as =all words is to synchronize all matching queue.Then you can designate that machine to run on the home row when you create a new queue.the
Flask-Admin user guide for setting up the Flask-admin Gui
Flask-Admin is an extension of the Flask framework. It can be used to quickly create a Web management interface. It provides common management functions such as adding, deleting, modifying, and querying users and files; if you do not like its default interface, you can modify the template file to customize
Official RabbitMQ tutorials --- Introduction, official rabbitmq tutorials ---
RabbitMQ is a message broker. The main idea is very simple: it receives and sends messages. You can think of it as a post office: When you send an email to your mailbox, you will be sure that the postman will eventually pass the email to your recipient.
Test environment: VMS00781 VMS00782 VMS00386 (centos5.8)1. Install RABBITMQ Server separately on three machines first2. Read the cookie from one of the nodes and copy it to the other nodes (between the nodes to determine if they can communicate with each other through a cookie)Either of the two can:sudo vim/var/lib/rabbitmq/.erlang.cookiesudo vim $HOME/.erlang.cookie3. Start nodes individuallysudo service
Getting started with RabbitMQ-working queue and rabbitmq
What is a work queue?
A work queue is a processing method to avoid waiting for a number of resources or time-consuming operations. We encapsulate the task as a message and send it to the queue. The consumer keeps pulling the task from the backend and executing it. When multiple consumer worker processes are run, tasks in the queue are shared among eac
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