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1
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0answers
14 views

Forking New Consumers for RabbitMQ in NodeJS

So I'm implementing work queue with RabbitMQ in NodeJS. The consumer is a child process and I plan to fork new ones as need arises, but I read in the official documentation that : Because of the ...
-2
votes
1answer
52 views

Name for object to re-order events received in arbitrary order?

I have a program which generates events. They are ordered with a Lamport clock and sent over the network. They may arrive in a different order. On the receiving end I have an object which re-orders ...
7
votes
2answers
160 views

How to best design a job queue with constraints?

Consider the following situation: You have a program which creates numerous 'jobs' that need to be processed and places them into a queue. You have other worker programs which grab the next 'job' in ...
0
votes
2answers
78 views

Ordering 'Tasks' for execution based on their dependencies

Let's say I have a set of Tasks that they have dependencies. These tasks are not in order, but the execution of tasks should be in the proper order. Each task has two properties: Before and After. ...
4
votes
3answers
351 views

Queue vs Threads

I'm implementing a data processing software. The software gets form the network thousands of events that must be processed in according to rules. I implemented a multi-thread service, which receives ...
1
vote
1answer
39 views

Process synchronization over Internet

I'm trying to create an IOT hub that can be controlled locally (Intranet) or from Internet. The problem I'm facing is of state synchronization. The following points depict what's happening at my local ...
5
votes
1answer
164 views

Querying large amount of data for parallel processing [closed]

I have a dataset containing list of users (around 50M). Each user has an email address, name, and some more data columns. I want to send a weekly email to those users, and the content of the email ...
1
vote
0answers
106 views

Better choice of Queue then a ConcurrentLinkedQueue if I have low number of threads in Java

I have two threads, one that is reading messages from the web and putting them into some sort of a queue. The other is suppose to read it. I looked into a ConcurrentLinkedQueue and it looks good for ...
1
vote
1answer
64 views

Threads Inside Full Duplex Device Library

This is the second project I'm working on which will use a design that I'm not 100% confident about. I'd like some feedback, maybe recommendations for a better design, or verification that this would ...
1
vote
2answers
65 views

Operations Job Queue Strategy

I am working on an application that requires manual approval of requests put in by customers. Now lets say there are 10 people involved in this operation and each of them has a webpage in front of ...
1
vote
2answers
468 views

Creating a queue for web services

I have a program running that collects metadata from the internets. Every so often a summary of this data is written up (every 30 min or so) and the summary is posted to a database. The summary is ...
2
votes
1answer
69 views

Queue rescheduling naming convention (Command pattern)

For my project I'm creating a queueing mechanism based on the Command Pattern, which can execute one of a number of jobs. Jobs can add other jobs to the queue or can be added by a human. Most of the ...
0
votes
1answer
3k views

How to remove a middle element from queue?

I had a question, about how to remove an element from middle of the queue , without disturbing the order of other elements. E.g. Queue before operation:- <| a b c d e |< Queue after ...
7
votes
1answer
376 views

Message Queue for RTOS for microcontrollers

I'm currently writing an RTOS for microcontrollers. The whole thing is written in C++11 - if anyone is interested, and the link to the repository is at the bottom. Currently I'm writing a class that ...
-3
votes
1answer
1k views

Reverse a queue using an extra queue [closed]

You are given 2 queues, Q1 and Q2. Q1 is already filled with n elements. Q2 is empty You have to reverse all the elements in Q1. You cannot use any other space apart from Q2. only operations ...
0
votes
2answers
700 views

Terminology: queue versus fifo

When referring to or documenting a typical lock-free circular data structure (or class or object) used to communicate between arbitrarily long asynchronous threads or processors: "queue", "fifo" or "...
2
votes
0answers
76 views

What happens differently when you add a task Asynchronously on GAE?

Google's doc on async tasks assumes knowledge of the difference between regular and asynchronously added tasks. add_async(task, transactional=False, rpc=None) Asynchronously add a Task or a list ...
0
votes
1answer
222 views

I'm making a report generator, how should I run it?

So I've started a project to generate reports for our system. These are reports that we deliver to our end customers and they are so specialized that no existing system can generate them. This is not ...
0
votes
2answers
230 views

Queues and threading

I am developing a new project where I will be constantly checking a webpage for data and adding this data to a queue for processing. This data will then be removed from the queue and added to a list ...
2
votes
2answers
7k views

How to increase the efficiency of an Immutable Queue in java?

I have been developing an Immutable queue in java, but the version I have developed is supposedly slow and I have been suggested to create a faster version of the same and I have no idea as to how to ...
5
votes
3answers
2k views

Use Queue<T> or stick to native f# lists

I need something that represents a queue in F#. The queue will be filled with items once, and (as the application progresses) items will be taken from this queue and moved to other lists. Should I ...
7
votes
3answers
1k views

When designing a job queue, what should determine the scope of a job?

We've got a job queue system that'll cheerfully process any kind of job given to it. We intend to use it to process jobs that each contain 2 tasks: Job (Pass information from one server to another) ...
9
votes
13answers
22k views

What are some good, simple examples for queues? [closed]

I'm teaching CS2 (Java and data structures), and am having some difficulty coming up with good examples to use when teaching queues. The two major applications I use them for are multithreaded message ...