queue

问题 My function is sending a payload to different sftp servers. Those servers are limited in how many connections they can accept. I need a solution to throttle our connections to those servers. The function is triggered by storage queues, and the first draft of the design is: I then learned that you can only have 1 trigger per function, which led me to sandwhich another aggregating queue: I can set the batchSize/newBatchThreshold on the originating queues, but I'm not certain this will work

问题 I need to know, how to handle a queue in android java code. I want to fire some method when queue is not empty. Can anyone give advice about this… Currently I have implemented a timer task. This class frequently sees the queue status. When queue is not empty it will fire the method. I want to know have any alternative ways to do this.. public class GSMLocationTask extends TimerTask { Handler TDGetDeviceLocHandler; int myLatitude, myLongitude; int cid; int lac; double latitude; double

问题 I'm trying to make something like "task manager" using thread in Django which will be waiting some job. import multiprocessing from Queue import Queue def task_maker(queue_obj): while True: try: print queue_obj.qsize() # << always print 0 _data = queue_obj.get(timeout=10) if _data: _data['function'](*_data['args'], **_data['kwargs']) except Empty: pass except Exception as e: print e tasks = Queue() stream = multiprocessing.Process(target=task_maker, args=(tasks,)) stream.start() def add_task

问题 So, I am trying to make sure that a series of HTTP GET requests happen before I try to render the data gotten into a visualization. Typical deal, right? I'm using queue.js, and seeing this on the queue.js github page (https://github.com/mbostock/queue): Or, if you wanted to run a bazillion asynchronous tasks (here represented as an array of closures) serially: var q = queue(1); tasks.forEach(function(t) { q.defer(t); }); q.awaitAll(function(error, results) { console.log("all done!"); });

问题 I am trying to send an object over a queue. The object is wrapped in the createContextualProxy of the ContextService. But if I am unwrap the object, the securityIdentity is null. The object is a correct Proxy. Sender: @Resource(name = "DefaultContextService") private ContextService cs; public void sendMessage() { ObjectMessage objectMessage = context.createObjectMessage(); objectMessage.setObject((Serializable) cs.createContextualProxy(<ObjectToSend>, Runnable.class)); context.createProducer(

问题 I have multi tenant application. Each tenant has multiple actions (sync_customers, sync_metafileds, install_code, verify_code etc etc) for which i need to do a API calls. API call has limit of 2 calls per second (max 41 calls in one minute). case 1. i. suppose one tenant has 10,000 customers. And syncing process is running. At the same time tenant add request for install_code. (install_code needs min 16 API calls.) Now either i can stop sync_customers and start install_code based on priority

问题 I currently have a queue that holds a user specified number of structs called Process . Process is made up of a pid, burst, and arrival. I would like to sort the queue by arrival, but I don't have the faintest idea of where to begin. Here is some pseudocode to help illustrate what I'm trying to say: struct Process{ int pid; int burst; int arrival; }; void function(int numProcesses){ queue<Process> readyQueue; // The following loop is a shortened version of my code for(int i=0; i<numProcesses

问题 I need help to dispatch a job with Laravel, seems the system try to serialize a closure when using queue job so there's this error. How can I fix this problem? I also tried this package https://github.com/jeremeamia/super_closure but it doesn't work in my case. Here is my code: In the controller FacebookController: public function getPosts(\SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) //get all post of logged user { dispatch(new SyncFacebook($fb)); } And Job to dispatch: <?php namespace

问题 I would like to create a LINQ to SQL backed queue. However I am unsure how the best way to go about it is. Right now I've done it something like this: public static void Queue(Item item) { var db = new MyDataContext(); item.Time = DateTime.Now; db.Items.InsertOnSubmit(item); db.SubmitChanges(); } public static Item TryDequeue() { try { var db = new MyDataContext(); var item = db.Items .Where(x => x.Status == 0) .OrderBy(x => x.Time) .FirstOrDefault(); if (item == null) return null; item

问题 In PHP there are two ways to use an array as a stack (LIFO) and two ways to use them as a queue (FIFO). One could implement a stack with push & pop , but the same can be done with unshift & shift . Similarly one could implement a queue with push & shift , but the same can be done with unshift & pop . To demonstrate: echo "stack push & pop approach:\n"; $s = []; array_push($s, 'first'); array_push($s, 'second'); array_push($s, 'third'); echo array_pop($s) . '-' . array_pop($s) . '-' . array