queue

问题 Disclaimer : I'm new to Python in general. I have a small experience with Go, where implementing a queue using a channel is really easy. I want to know how can I implement a Queue with ProcessPoolExecutor in Python 3. I want my N number of process to access a single queue so that I can just insert many jobs in the queue via the main thread, then the processes will just grab the jobs in the Queue. Or if there is a better way to share a list/queue between multiple processes. (Job Queue/ Worker

问题 I am looking for a way to bulk queue jobs in L5 that will all have different data. I was hoping I would be able to do something like this: $jobs = []; foreach($items as $item) { $jobs[] = new Job($item->someValue); } Queue::bulk('desired_queue', $jobs); When using the database queue driver, it is very slow to queue a large number of jobs in a loop as for each job a query is executed. Alternatively, I installed Redis on my windows dev box, and queueing large numbers of jobs using redis in a

问题 How to realize pattern producer - consumer on crystal lang? I'am looking for something like that - http://ruby-doc.org/core-2.2.0/Queue.html Probably i need to use Channel , but I don't understand how.. because it's wait while "consumer" will receive. I mean: channel = Channel(Int32).new spawn do 15.times do |i| # ... do something that take a time puts "send #{i}" channel.send i # paused while someone receive, but i want to continue do the job that takes a time.. end end spawn do loop do i =

问题 I have a strange problem with ActiveMQ. I have a queue that seems to have a pending message, but when I open the queue, there is no message. What is wrong here? Is there really a message pending? How can I bring the message back or at least see the content? Screenshot of the pending message: Screenshot when opening the queue, which is empty: EDIT: Just found these two bugs of ActiveMQ 5.6.0. Can this be the source of that problem? Incorrect reporting of pendingQueueSize of durable subs after

问题 This question already has answers here : How to keep Laravel Queue system running on server (14 answers) Closed last year . I have implemented Laravel queue.The thing is i have to run the command php artisan queue:listen every time.Is there any way that the jobs get executed automatically without running any command. 回答1: Yes, if you use Linux you can use for example supervisor which will run php artisan queue:listen (you need to add this command to supervisor configuration file) and it will

问题 This question already has answers here : How to keep Laravel Queue system running on server (14 answers) Closed last year . I have implemented Laravel queue.The thing is i have to run the command php artisan queue:listen every time.Is there any way that the jobs get executed automatically without running any command. 回答1: Yes, if you use Linux you can use for example supervisor which will run php artisan queue:listen (you need to add this command to supervisor configuration file) and it will

问题 I have the code below. It all works, but annoyingly, the print line command in the while loop runs twice. There is (and I have tested for it), only unique items in the queue, no duplicates. public void paint(Graphics g) { boolean isParent; int drawCount = 1; int x = 0, y = 0, width = 0, height = 0; Color colour; while (!qtreeQueue.empty()) { drawNode = (QuadTreeNode) qtreeQueue.deque(); isParent = drawNode.getIsParent(); if (!isParent) { x = drawNode.getRectangle().x; y = drawNode

问题 I am totally new to the subject of cron jobs so I have no idea where to start learning about them; when, why, or how to use them with my Zend Framework application, or PHP in general. Can anyone explain the process, with an example, or recommend some good resources to get started? 回答1: Cron jobs is a mechanism to automate tasks in Linux operating system. And has pretty little to do witn Zend Framework. The framework can help you develop an advanced cron task in php though. But then you will

问题 How to run the first process from a list of processes stored in a file and immediately delete the first line as if the file was a queue and I called "pop"? I'd like to call the first command listed in a simple text file with \n as the separator in a pop-like fashion: Figure 1: cmdqueue.lst : proc_C1 proc_C2 proc_C3 . . Figure 2: Pop the first command via popcmd : proc_A | proc_B | popcmd cmdqueue.lst | proc_D Figure 3: cmdqueue.lst : proc_C2 proc_C3 proc_C4 . . 回答1: pop-cmd.py: #!/usr/bin/env

问题 A queue implementaion using an array but i m getting an exception. I have an interface named as Queue with generic ArrayQueue as implemented class of Queue Interface ArrayQueueTest as my main class to test the code. public interface Queue<E> { public void enqueue(E e);//insert an element in a queue public E dequeue();/delete an element in queue and return that element public int size();//give the number of elements in an queue public E first();//give the first element of queue if any but not