rabbitmq erlang

/usr/local/redis/conf266 CD.268 ln-s/usr/local/mysql/lib/mysql/usr/lib/mysql269 ln-s/usr/local/mysql/include/mysql/usr/include/mysql288./pip3.6 Install Python-redis (under/usr/local/python3/bin)Configure Erlang394 Cd/home/ht395 ls396 mkdir RabbitCD Rabbit399 wget HTTP://192.168.100.252/SRC/RABBITMQ.TAR.XZwget http://192.168.100.252/src/otp.tar.gz401 Yum Install kernel-devel M4 ncurses-devel Openssl-devel408 tar-zxvf otp.tar.gz411 CD otp_src_20.0/412./configure--prefix=/usr/local/

Erlang: RabbitMQ source code analysis 3. In-depth analysis of supervisor and supervisor2, supervisor Supervisor is also a common behavior in Erlang/OTP. It is used to build a supervisor tree for process monitoring and fault recovery. RabbitMQ implements a supervisor2. We analyze the implementation and differences betwe

writebuffer of handle must be prim_file: Write 3. Call prim_file: Read to obtain the result. Append: 1. Like read, it is also possible to reopen. 2. If the client does not set writebuffer during open, it will directly call prim_file: Write (HDL, data ). 3. the so-called writebuff is for a single handle, that is, to create an empty list for buffer during open, and to call prim_file if buffersize> limit set during client open at append: write writes all the buffer into the file. If buffersize 

above, and we will send a message to the direct type of exchange instead of the Fanout type. We will provide the severity of the log as routing key. The application that receives the message will be able to select the message for the severity it wants to receive. Let's focus first on sending logs.First, we need to create a echange:Amqp_channel:call (channel, # ' Exchange.declare ' {exchange = In addition, we are ready to send a message:Amqp_channel:cast (channel, # ' Basic.publish ' {exchange =

As mentioned before, in a cluster environment, only metadata in the queue is synchronized on all nodes in the cluster, but data in the queue only exists on one node. This is disappointing: if the data is not redundant, it is easy to lose data or even durable, if the node where the data is located is lost, it will wait for the node to be restored. is there a message redundancy solution? Yes, rabbitmq has been supporting the mirror Queue (mirrored Queue

Two stenography strokes, some breaking changes in rabbitmq 3.0. Mirror queue policiesDo you still remember how to create an image queue before? In the new version of X-ha-policy [LINK], using this parameter will not report an error, but the image will no longer take effect. the alternative solution is to use policies. the reason for this change is: the status of the image queue cannot be determined during running. The new solution is to configure the

Rabbitmq topic exchange routes messages according to rules. Note that the topic expression used here is not a regular expression. In the Getting Started tutorial [click the link], we briefly describe how to write rules: * (STAR) can substitute for exactly one word. # (Hash) can substitute for zero or more words. The above statement is easy to misunderstand. I will try to explain it: . Used to divide the routing key into several parts) * Mat

with a working assumption that the routing keys of logs would have both words: "".emit_log_topic.erl -module (emit_log_topic).-compile ([Export_all]).-include_lib ("Amqp_client/include/amqp_client.hrl"). Main (ARGV) ->{ok,Connection}= amqp_connection:start (#amqp_params_network {host= "localhost"}), {ok, channel}=amqp_connection:open_channel (Connection), amqp_channel:call ( channel,# ' Exchange.declare ' {exchange= Receiver_logs_topic.erl -module (receive_logs_topic).-compile ([Export_all]).

RabbitMQ cluster configuration, rabbitmq Cluster Reference: This article describes the basic installation and basic cluster configuration of rabbitmq.I. Environment 1. Operating System CentOS-7-x86_64-Everything-15112. Version Haproxu version: 1.7.7 Erlang version: 20.0 Rabbitmq version:

tolerance. And then, in December 1998, Ericsson decided to release Erlang as an open source code. In January 1991, the official Erlang programming language Web site was about 36k, 10 years later, reaching 2800k. It seems that the Erlang community is growing (but this development speed, eh ... Or too worried about Mulberry).Application ScenariosAlthough many prog

Set up a RabbitMq cluster and a rabbitmq Cluster Lab environment: The operating system is Centos 7.2. IP hostName 192.168.190.132 node132 192.168.190.139 node139 192.168.190.140 node140 RabbitMQ Port 4369 (epmd) 5672,567 1 (AMQP 0-9-1 and 1.0 without and with TLS) 25672. this port used by Erlang distribution for

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

RabbitMQ Article 1: setup and configuration of rabbitMQ and rabbitmq Article 1 Install rabbitMQ in WindowsStep 1: Install software If rabbitMQ is installed, first install OTP software based on the erlang language, and then downloa