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RabbitMQ is an open-source message-broker software (sometimes called message-oriented middleware) that originally implemented the Advanced Message Queuing Protocol (AMQP) and has since been extended with a plug-in architecture to support Streaming Text Oriented Messaging Protocol (STOMP), MQ Telemetry Transport (MQTT), and other protocols.
Open source choices of messaging middleware systems includes Apache ActiveMQ, Apache Kafka, Apache Qpid, Apache RocketMQ, Enduro/X, JBoss Messaging, JORAM, RabbitMQ, Sun Open Message Queue, and Tarantool. Examples on hardware-based messaging middleware vendors are Solace, Apigee, and IBM MQ.
AMQP is a binary application layer protocol, designed to efficiently support a wide variety of messaging applications and communication patterns. It provides flow controlled, [3] message-oriented communication with message-delivery guarantees such as at-most-once (where each message is delivered once or never), at-least-once (where each message is certain to be delivered, but may do so ...
According to RFC 793, a TCP connection is referred to as half-open when the host at one end of that TCP connection has crashed, or has otherwise removed the socket without notifying the other end. If the remaining end is idle, the connection may remain in the half-open state for unbounded periods of time.
Enduro/X was developed as closed source project by ATR Baltic. The development begun in December 2009 and first production customers (mainly banks) where put on the system in late 2012, at the time Enduro/X reached version 1.0. The project was open sourced in 2015, with version v2.3.2. From that event, all the development is made publicly ...
Under HTTP 1.0, connections should always be closed by the server after sending the response. [1]Since at least late 1995, [2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.
A network socket is a software structure within a network node of a computer network that serves as an endpoint for sending and receiving data across the network. The structure and properties of a socket are defined by an application programming interface (API) for the networking architecture.
The operating system does not release the resources allocated to a socket until the socket is closed. This is especially important if the connect call fails and will be retried. When an application closes a socket, only the interface to the socket is destroyed. It is the kernel's responsibility to destroy the socket internally.