Laravel队列是否防止并发请求插入重复记录?

We have a Laravel API with a MariaDB database where we are having the issue of duplicate records in the database that are created by concurrent requests.

We assumed that implementing a queue would solve this, by handling one request at a time. But we still have the same issue of duplicate records.

In the application we have a check that looks for duplicates, but of course that won't work for concurrent requests that will create the same record at the same time.

We are unable to use a unique constraint at database level, partially because of Laravel's soft delete mechanism, and partially because of complex business logic that should allow duplicates if the value of one of the fields matches a certain set of values.

We use Redis as the queue driver.

Are we wrong by thinking that the queue should prevent these issues? Or did we somehow made a mistake somewhere implementing the queue?

This is a simplified version of the controller:

class CreateRecordJob extends Job implements SelfHandling
{

    public function __construct(array $data)
    {
        $this->data = $data;
    }

    public function handle()
    {
        $data = $this->data;

        // check if we have this record in the database already
        if(!$this->hasDuplicate($data)) {
            $this->createRecord();
        }
    }
}

In config/queue.php we have set Redis as the default queue driver:

'default' => env('QUEUE_DRIVER', 'redis'),

And also in config/queue.php we have this for the redis connection:

'redis' => [
    'driver'     => 'redis',
    'connection' => 'default',
    'queue'      => 'default',
    'expire'     => 60,
],
dongping9475
dongping9475 好吧,我刚尝试过,将它包装在一个事务中仍然会产生重复。
大约 2 年之前 回复
dtqu72830
dtqu72830 默认情况下,如果失败,它将被回滚。除非它是逻辑的一部分,否则您不需要手动执行此操作。你只关心提交交易。
大约 2 年之前 回复
doutuoben6908
doutuoben6908 那么什么时候应该回滚交易?通常我在处理多个表时使用事务,如果保存到其中一个表失败则回滚。但在这种情况下,问题是它会节省。
大约 2 年之前 回复
drd2551
drd2551 你一定要试一试。这是交易的完美案例。
大约 2 年之前 回复
doulun1939
doulun1939 如果请求稍后发出,hasDuplicate可以正常工作。并且唯一索引不是当前业务逻辑的选项。@ChrisCynarski只有1个表参与此事,在这种情况下会有一笔交易帮助我吗?
大约 2 年之前 回复
dpowt82802
dpowt82802 只有在应用不正确时简单的“检查是否存在,如果不存在则插入”是事务保持一致性的完美案例。否则,您可以检查该记录在其他进程刚刚创建时不存在。如果它不存在,进程号1将创建它,创建一个副本。
大约 2 年之前 回复
dqe9657
dqe9657 并发请求的db事务可能是死锁的原因
大约 2 年之前 回复
dougan5772
dougan5772 队列不会阻止创建具有相同数据的两个作业。看起来像hasDuplicate函数不能正常工作。我建议:1。检查hasDuplicate是否正常工作。2.通过在第一行中添加\DB::beginTransaction()并在handle()方法的最后一行添加\DB::commit()来执行检查和注入事务。3.在数据库中的一个或多个字段上创建唯一索引。这很大程度上取决于你的逻辑。
大约 2 年之前 回复

1个回答



基本上 - 不是

你可能会发现FIFO兼容队列驱动程序的实现
laravel有接口Illuminate \ Console \ Scheduling \ Mutex为此目的,byt yuo需要扩展queueManager才能使用它</ p>
</ div>

展开原文

原文

basicly - not
you may find implementation of FIFO-compatable queue-drivers laravel has interface Illuminate\Console\Scheduling\Mutex for this purposes, byt yuo need to extend queueManager to use it

dongtuoao7987
dongtuoao7987 amazon sqs有“消息重复数据删除ID”,这可能有所帮助
大约 2 年之前 回复
dpr81047
dpr81047 这就是队列无法解决问题的原因。
大约 2 年之前 回复
drrvnbwle80177811
drrvnbwle80177811 你可以启动任意数量的工人,但互斥锁适用于1台服务器=(
大约 2 年之前 回复
doujia6503
doujia6503 如果你有一个工人,那么工作就会一个接一个地运行。 如果后续作业中的数据相同,这将无济于事。 如果工作正常,我会看看hasDuplicate方法,或者首先是重复数据的原因。
大约 2 年之前 回复
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<div class="post-text" itemprop="text"> <p>Hi I have a laravel job as follows:</p> <pre><code>namespace App\Jobs; use Illuminate\Bus\Queueable; use Illuminate\Queue\SerializesModels; use Illuminate\Queue\InteractsWithQueue; use Illuminate\Contracts\Queue\ShouldQueue; use Illuminate\Foundation\Bus\Dispatchable; use Timeline\Timeline; class testQueue implements ShouldQueue { use Dispatchable, InteractsWithQueue, Queueable, SerializesModels; /** * Create a new job instance. * * @return void */ public function __construct() { // } /** * Execute the job. * * @return void */ public function handle(Timeline $timeline, $tag) { $tagData = $timeline-&gt;getTagFeed($tag)-&gt;getRankedItems(); if ($tagData) { echo "boom"; } } } </code></pre> <p>I'm running it via a route as follows:</p> <pre><code>Route::get('/queue', function () { $timeline= new Timeline(); $timeline-&gt;login("test", "testpwd"); Queue::later(5, new testQueue($timeline, "Testtag")); }); </code></pre> <p>Then on the commandline I ran:</p> <pre><code>php artisan queue:listen database </code></pre> <p>However, that one job is running 255 times instead of 1 times and exiting successfully.</p> <p>What am I doing wrong?</p> </div>

队列工作延迟4小时

<div class="post-text" itemprop="text"> <p>I have a mission-critical queue in laravel 5.4 which is powerd by Redis and 8 workers on supervisor.</p> <p>In this queue, I have to make delayed jobs with a delay about 4 hours like this:</p> <pre><code> $job = (new VerifyAndOrderJob($books)) -&gt;onQueue('orders') -&gt;delay(\Carbon::now()-&gt;addHours(4)); dispatch($job); </code></pre> <p>Now since Laravel queues are based on FIFO, If I have thousands of delayed jobs like this in the queue everyday and I wanted to push a same job but without any delay, is it need to wait till other delayed jobs to be processed or this will be fired instantly?</p> </div>

动态Laravel队列连接

<div class="post-text" itemprop="text"> <p>I have a 'proposal' table on my database, each proposal's row will generate a photo album (for all users) on certain time.</p> <p>I set a queue to generate per photo album, so there's a thousand jobs in my jobs table at database.</p> <p>to generate 1 photo album takes 4-10 seconds because there's an algorythm process.</p> <p>I create 8 proposals, so the last photo album will take a long time to be generated, could someone have a solution for me?</p> <p>Is there a way to create a multiple queue connection that run in the same time? lets say i have 5 proposal, so there's 5 queue connection, so each proposal has it's queue connection so the generate process will be done on time.</p> <p>Thank you.</p> </div>

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<div class="post-text" itemprop="text"> <p>I recently Created a job class by the command php artisan make:job --queued and I dispatched it from the controller and it worked fine , and I deleted it again because I don't need it anymore , and I already did an Event class for sending Emails and it's also queued (and worked fine before creating Job Class) the problem now when I trigger php artisan queue:listen I got this Error</p> <blockquote> <p>[InvalidArgumentException] <br> No handler registered for command [__PHP_Incomplete_Class]</p> </blockquote> <p>and everything was working fine before I created the job class So What's the problem ?Help me please Note: I use the database queue Driver</p> </div>

当消息发送回SQS时,Laravel队列工作程序作业失败

<div class="post-text" itemprop="text"> <p>I have set up my Laravel application to retrieve messages from an SQS queue. Everything works fine during normal operation: Messages are added to the queue when a queueable job is dispatched, and the queue worker grabs the message from SQS and runs the job successfully.</p> <p>However, I run into problems whenever I use the "View Messages" feature in the SQS web console. Here are the steps to reproduce:</p> <ul> <li>Go into the SQS web console</li> <li>Select the queue</li> <li>Run "View Messages" to get a live view of messages coming in</li> <li>After a while, stop polling</li> <li>Messages that were being intercepted are now released</li> <li>Queue worker grabs the messages but they all end up as failed jobs</li> <li>Run artisan queue:retry all</li> <li>Failed jobs now run successfully</li> </ul> <p>Why is this happening? I'm running Laravel 5.2.41 on PHP 5.6.</p> </div>

使用redis服务器和主管同时运行多个laravel队列作业

<div class="post-text" itemprop="text"> <p>I am working on queue job in Laravel v4.2 project and I have five queue worker to perform different type of jobs in queues and each worker has more than 500 jobs at the same time. For queue job I am using redis server and supervisor to process automatically. Now problem that I am facing is that supervisor process one job at a time and another job process after completing the first queue job. Now I want to process more than one job at the same time and for this purpose I search on google and forums too but failed to find correct answer below is my command that I am running to run queue jobs through supervisor</p> <pre><code>command=php /home/rizwan/php/webservices/local/artisan queue:listen --queue=notificationQueue,lowQueue --tries=1 command=php /home/rizwan/php/Fayvo/favyo_webservices/local/artisan queue:listen --tries=1 </code></pre> <p>if I remove priority param from command then queue jobs does not process which is wrong and if I add it then it process notificationQueue jobs first and then lowQueue jobs after processing all the jobs of notificationQueue jobs but I want to process both jobs at same time.</p> <p>supervisor configuration</p> <pre><code>redirect_stderr=true autostart=true autorestart=true numprocs = 4 process_name = %(program_name)s%(process_num)s user=rizwan </code></pre> </div>

生成为Laravel作业队列创建表的迁移?

<div class="post-text" itemprop="text"> <p>I'm trying to set up a table in order to asynchronously execute jobs in Laravel. I've already written the job class and can dispatch it. However it is dispatching synchronously.</p> <p>Following the <a href="https://laravel.com/docs/5.3/queues" rel="nofollow noreferrer">documentation</a> When I attempt to create the migration with <code>php artisan queue:table</code> I receive the following error:</p> <pre><code>[Symfony\Component\Console\Exception\CommandNotFoundException] Command "queue:table" is not defined. Did you mean one of these? queue:failed queue:work queue:restart queue:listen queue:retry queue:forget queue:flush </code></pre> <p>I noticed I didn't initially have a queue.php file in the config directory so I added the one from the <a href="https://raw.githubusercontent.com/laravel/laravel/master/config/queue.php" rel="nofollow noreferrer">repository</a> and changed <code>'default' =&gt; env('QUEUE_DRIVER', 'sync')</code> to <code>'default' =&gt; env('QUEUE_DRIVER', 'database'),</code>;</p> <p>I also changed <code>QUEUE_DRIVER=sync</code> to <code>QUEUE_DRIVER=database</code> in my .env file. </p> <p>I'm new to job queues in Laravel so I'm not sure what I'm missing. How can I create the migration to utilize the database queue driver?</p> <p>UPDATE: I wound up just creating a jobs table in the postgres db I'm using for the rest of my data following the structure described in the <a href="https://lumen.laravel.com/docs/5.3/queues" rel="nofollow noreferrer">Lumen documentation</a> and using that to store jobs but still curious why the <code>queue:table</code> function isn't available.</p> <p><em>Laravel Framework version Lumen (5.3.3) (Laravel Components 5.3.*)</em></p> </div>

来自外部服务的Laravel队列侦听器

<div class="post-text" itemprop="text"> <p>I have a legacy API written in Laravel, and I'm attempting to post data to it from a RabbitMQ queue. I'm using a third party library to integrate RabbitMQ into the native Laravel Queue architecture. Which works well, and is handling messages correctly when the listener console command is running. </p> <p>However, when I pass the following event, including the job and data keys, which are required by the queue handler... </p> <pre><code>{"job":"SixtyFiveContrib\\Jobs\\CreateSubmissionMetaDataJob@handle","data":{"title":"","story":"Testing 123","author":"Ewan Valentine","email":"","address":"","dob":"","phone":"","site":"The Lad Bible","legal":"The LAD bible - Facebook","agreed":false,"signature":"","files":[{"filename":"test.png","filesize":0,"filetype":""}],"agreement":{"id":"","facebook_id":""},"attempts":1036}} </code></pre> <p>I notice the class which handles queued events, splits the class path and the method name (SixtyFiveContrib\Jobs\CreateSubmissionMetaDataJob and handle), and attempts to call that class from the container. </p> <p>However jobs aren't automatically part of the container. When I attempt to add the job into the container myself, I run into a situation where I can't dynamically pass the 'data' from the queue into the job, for example... </p> <pre><code>$this-&gt;app-&gt;bind(\SixtyFiveContrib\Jobs\CreateSubmissionMetaDataJob::class, function() { return \SixtyFiveContrib\Jobs\CreateSubmissionMetaDataJob(????); }); </code></pre> <p>If I omit this entry from the container, the queue handler can no longer resolve the job, I get the following <strong>error...</strong> </p> <blockquote> <p>[Illuminate\Contracts\Container\BindingResolutionException]<br> Unresolvable dependency resolving [Parameter #0 [ $data ]] in class SixtyFiveContrib\Jobs\CreateSubmissionMetaDataJob</p> </blockquote> <p>Here's my job class (sensitive business logic omitted). </p> <pre><code>&lt;?php namespace SixtyFiveContrib\Jobs; use App; use Illuminate\Queue\SerializesModels; use Illuminate\Queue\InteractsWithQueue; use Illuminate\Contracts\Bus\SelfHandling; use Illuminate\Contracts\Queue\ShouldQueue; use SixtyFiveContrib\Jobs\Job; /** * CreateSubmissionsMetaDataJob * * @author Ewan Valentine &lt;ewan@theladbible.com&gt; * @copyright The LAD bible Group - 2016 */ class CreateSubmissionMetaDataJob extends Job implements SelfHandling { use InteractsWithQueue, SerializesModels; /** * @var array $data */ public $data; /** * __construct * * @param array $this-&gt;data */ public function __construct($data) { $this-&gt;data = $data; } public function handle() { try { // Omitted } catch (\Exception $e) { \Log::error($e-&gt;getMessage() . " " . $e-&gt;getLine()); return $e-&gt;getMessage(); } } } </code></pre> </div>

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