Is Kafka queue or pub-sub?

As I wrote in the comments, Kafka implements a Pub-Sub algorithm. It is not a queue and the mechanism is not event-based. The implementation of this service is almost the same as Microsoft Event-Hub and Amazon Kinesis. I have multiple consumers, 1.

What is Pheanstalk?

Pheanstalk is a pure PHP 7.1+ client for the beanstalkd workqueue. It has been actively developed, and used in production by many, since late 2008. Created by Paul Annesley, Pheanstalk is rigorously unit tested and written using encapsulated, maintainable object oriented design.

What is the difference between stacks and queues?

Stacks are based on the LIFO principle, i.e., the element inserted at the last, is the first element to come out of the list. Queues are based on the FIFO principle, i.e., the element inserted at the first, is the first element to come out of the list.

What is a queue in Java?

It allows insertion of an element to be done at one end and deletion of an element to be performed at the other end. In this chapter, you will be given an introduction to the basic concepts of queues along with the various types of queues which will be discussed simulating the real world situation.

What is the difference between queue and abstract data type?

So basically queue is used within a single program where there are multiple programs kept in the queue or one task may create other tasks which must have to be executed in turn by keeping them in the queue. The meaning of an abstract data type clearly says that for a data structure to be abstract, it should have the below-mentioned characteristics:

What is front and rear queue in SQL?

A queue is a linear list of elements in which deletion of an element can take place only at one end called the front and insertion can take place on the other end which is termed as the rear. The term front and rear are frequently used while describing queues in a linked list.