blocks|key|2337039|text|是的！任务/消息/作业队列就是你要找的！它们允许您将各种任务放在队列中，您可以从队列中检索并处理它们，此过程可以水平扩展，因为每个工作人员都可以在任务与上一次任务完成后提取任务。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2337040|您应该让cron，也许每分钟/两分钟，只上传任务和需要做什么。这将确保cron非常快。|2337041|看看Iron.io，这里是网站的一个摘录，它很好地概述了这些类型的系统：|2337042|一个易于使用的可伸缩任务队列，为云开发人员提供了一种简单的方法来卸载前端任务、运行计划作业以及在后台和规模上处理任务。|blockquote|2337043|吉尔曼也是一个很好的解决方案，您可以自己使用，而且非常简单。您可以使用许多不同的语言发送消息，并使用不同的语言来处理它。比如说PHP，->，C等等.|2337044|维基百科链接会告诉您您需要知道的一切，下面是一个简短的摘录：|2337045|消息队列提供异步通信协议，这意味着消息的发送方和接收方不需要同时与消息队列交互。放置在队列上的消息将被存储，直到收件人检索它们为止。|2337046|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Message_queue|1|http://www.iron.io/|2|http://gearman.org/|3^0|3|8|0|0|0|2|7|1|0|0|0|3|2|0|0|6|3|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@$A|14|B|15|1|16]]|C|$]]|$1|D|3|E|5|6|7|17|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|18|8|@]|9|@$A|19|B|1A|1|1B]]|C|$]]|$1|H|3|I|5|J|7|1C|8|@]|9|@]|C|$]]|$1|K|3|L|5|6|7|1D|8|@]|9|@$A|1E|B|1F|1|1G]]|C|$]]|$1|M|3|N|5|6|7|1H|8|@]|9|@$A|1I|B|1J|1|1K]]|C|$]]|$1|O|3|P|5|J|7|1L|8|@]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|1M|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]|Y|$5|T|U|V|C|$W|Z]]|10|$5|T|U|V|C|$W|11]]|12|$5|T|U|V|C|$W|X]]]]

Yes! <a href="http://en.wikipedia.org/wiki/Message_queue" rel="nofollow">Task/Message/Job</a> queues are what you are looking for! They allow you to put various tasks in queues from which you can retrieve them and process them, this process can scale horizontally as each worker can pull a task once its finished with the previous one.

You should have the cron maybe every minute/two minutes that just uploads the task and what needs to be done. This will make sure the cron is very quick.

Take a look at <a href="http://www.iron.io/" rel="nofollow">Iron.io</a> Here is an extract from the website which gives a nice overview of these kinds of systems:

<blockquote>
 An easy-to-use scalable task queue that gives cloud developers a
 simple way to offload front-end tasks, run scheduled jobs, and process
 tasks in the background and at scale.
</blockquote>

<a href="http://gearman.org/" rel="nofollow">Gearman</a> is also a great solution that you can use yourself and is very simple. You can send the message in many different languages and use a different langauge to process it. Say PHP -> C etc...

The <a href="http://en.wikipedia.org/wiki/Message_queue" rel="nofollow">Wikipedia link</a> will tell you everything you need to know, here is a quick excerpt:

<blockquote>
 Message queues provide an asynchronous communications protocol,
 meaning that the sender and receiver of the message do not need to
 interact with the message queue at the same time. Messages placed onto
 the queue are stored until the recipient retrieves them.
</blockquote>

I'm writing a web app in PHP + Laravel + MySQL.

In the system, a user can schedule emails (and other API calls) at arbitrary times (much like how you schedule posts in WordPress). I can use CRON to inspect the database every 5min or so to find emails that should be sent, send them, and update their status.

However, this is a SaaS app. So the amount of emails to be sent at a particular time can grow rapidly. I can create a "lock file" every time the CRON script runs so that only one instance of it is running at a time. The lock file will be deleted after a script finishes execution.

But with potentially large data, I would want a way to process multiple messages simultaneously, potentially using multiple "workers." Is there any existing solution manage such a queue?

Scheduling Emails Using PHP + MySQL + Cron

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在用PHP + Laravel + MySQL编写一个web应用程序。在系统中，用户可以在任意时间安排电子邮件(和其他API调用)(就像您如何安排WordPress中的帖子)。我可以使用CRON每5分钟左右检查一次数据库，查找应该发送的电子邮件，发送电子邮件，并更新它们的状态。然而，这是一个SaaS应用程序。因此，...

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