IPC, Sockets, MessageQueue

RabbitMQ is one of the leading implementation of the AMQP protocol (along with Apache Qpid). Therefore, it implements a broker architecture, meaning that messages are queued on a central node before being sent to clients. This approach makes RabbitMQ very easy to use and deploy, because advanced scenarios like routing, load balancing or persistent message queuing are supported in just a few lines of code. However, it also makes it less scalable and “slower” because the central node adds latency and message envelopes are quite big.

ZeroMQ is a very lightweight messaging system specially designed for high throughput/low latency scenarios like the one you can find in the financial world. Zmq supports many advanced messaging scenarios but contrary to RabbitMQ, you’ll have to implement most of them yourself by combining various pieces of the framework (e.g : sockets and devices). Zmq is very flexible but you’ll have to study the 80 pages or so of the guide (which I recommend reading for anybody writing distributed system, even if you don’t use Zmq) before being able to do anything more complicated that sending messages between 2 peers.

ZeroMQ

http://queues.io/

http://codeconnected.org/

http://www.drdobbs.com/architecture-and-design/zeromq-the-design-of-messaging-middlewar/240165684

https://news.ycombinator.com/item?id=5531192

https://news.ycombinator.com/item?id=2715937

http://pyfunc.blogspot.com/2012/03/introducing-mq-and-pyzmq-through.html

http://nichol.as/zeromq-an-introduction

http://lanyrd.com/2012/pycon/spbzp/

http://www.infoq.com/presentations/Distributed-Systems-with-ZeroMQ-and-gevent

http://blog.pythonisito.com/2012/08/using-zeromq-devices-to-support-complex.html

RabbitMQ

https://habrahabr.ru/company/oleg-bunin/blog/310418/

http://habrahabr.ru/post/149694/

http://habrahabr.ru/post/150134/

http://habrahabr.ru/post/200870/ 3

http://habrahabr.ru/post/201096/ 4 routing

http://habrahabr.ru/post/201178/ 5 topics

http://habrahabr.ru/post/236221/ 6

http://highload.guide/blog/101-RabbitMQ-way-of-cooking.html

https://habrahabr.ru/company/oleg-bunin/blog/310418/

http://mqmastery.com/2017/01/26/replace-database-polling-rabbitmq/

https://asafdav2.github.io/2017/rabbit-mq-persistentcy-vs-durability/

https://leanpub.com/rmq-patterns e-book

http://blog.runnable.com/post/144321351856/introducing-ponos-a-rabbitmq-based-worker-server

https://github.com/rabbitmq/internals/

http://courses.objectzen.com/rabbitmq

https://m.alphasights.com/speaking-rabbit-a-look-into-amqps-frame-structure-fbb81516b794#.vfsqj2n5i

http://courses.objectzen.com/rabbitmq

https://techietweak.wordpress.com/2015/08/14/rabbitmq-a-cloud-based-message-oriented-middleware/

https://ivanyu.me/blog/2015/02/16/delayed-message-delivery-in-rabbitmq/

http://abhishek-tiwari.com/post/amqp-rabbitmq-and-celery-a-visual-guide-for-dummies

https://medium.com/@mschuett/rabbitmq-ec2-auto-clustering-f40af4cebe69

High Availability

http://habrahabr.ru/post/193332/

www.rabbitmq.com/clustering.html

www.rabbitmq.com/ha.html

To have RabbitMQ start as a daemon by default, run the following:

chkconfig rabbitmq-server on

# To start/stop the service: /sbin/service rabbitmq-server start/stop/restart/status

- /etc/sysconfig/rabbitmq — В нем принято указывать какие-либо низкоуровневые параметры (например ulimit)
- /etc/rabbitmq/rabbitmq.conf — Настраиваются переменные окружения для запуска erlang
- /etc/rabbitmq/rabbitmq.config — Настраивается сам rabbitmq-server

Подтверждение (ack) отправляется подписчиком для информирования RabbitMQ о том, что полученное сообщение было обработано и RabbitMQ может его удалить.

sudo rabbitmqctl list_queues name messages_ready messages_unacknowledged

sudo rabbitmqctl list_queues

next скрипт выводит и обновляет каждые 2 секунды таблицу со списком очередей: имя очереди; количество сообщений в обработке; количество сообщений готовых к обработке; общее количество сообщений; устойчивость очереди к перезагрузке сервиса; является ли временной очередью; количество подписчиков

watch 'sudo /usr/sbin/rabbitmqctl list_queues name messages_unacknowledged messages_ready messages durable auto_delete consumers | grep -v "\.\.\." | sort | column -t;'

https://functionwhatwhat.com/why-you-should-not-use-an-rdbms-for-messaging/

http://aphyr.com/posts/315-call-me-maybe-rabbitmq

http://www.techtalkshub.com/rabbitmq-is-the-new-king-spring-java/

http://www.brettdangerfield.com/post/realtime_data_tag_cloud/

https://www.digitalocean.com/community/articles/how-to-use-rabbitmq-and-python-s-puka-to-deliver-messages-to-multiple-consumers

http://habrahabr.ru/post/62502/ AMPQ

http://www.rabbitmq.com/tutorials/tutorial-one-php.html

http://www.pyvideo.org/search/?models=videos.video&q=rabbitmq

http://www.wunki.org/posts/2013-04-22-crossing-the-language-barrier-with-rabbitmq.html

http://www.laurentluce.com/posts/distributed-messaging-using-rabbitmq-and-python/

http://habrahabr.ru/search/?q=rabbitmq

http://ron.shoutboot.com/2010/09/25/is-ampq-for-you/