我正在使用最新版本的Homestead . 我也设置了Laravel Horizon . 我使用Redis作为队列驱动程序 . Laravel是5.6版本，是一个全新的安装 .

发生的事情是我的工作都失败了（即使工作正常退出） .

我使用自定义命令通过命令行运行作业：

vagrant@homestead:~/myapp$ artisan crawl:start
vagrant@homestead:~/myapp$ <-- No CLI errors after running

app / Console / Command / crawl.php

<?php

namespace MyApp\Console\Commands;

use Illuminate\Console\Command;
use MyApp\Jobs\Crawl;

class crawl extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'crawl:start';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Start long running job.';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {


        Crawl::dispatch();

    }

}

app / Jobs / Crawl.php

<?php

namespace MyApp\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;

class Crawl implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    /**
     * The number of seconds the job can run before timing out.
     *
     * @var int
     */
    public $timeout = 3600;

    /**
     * The number of times the job may be attempted.
     *
     * @var int
     */
    public $tries = 1;

    /**
     * Create a new job instance.
     *
     * @return void
     */
    public function __construct()
    {

    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {


        $crawl = new Crawl();
        $crawl->start();


    }
}

app / Crawl.php

<?php
namespace MyApp;

class Crawl
{

    public function start()
    {

        ini_set('memory_limit','256M');
        set_time_limit(3600);

        echo "Started."; 
        sleep(30);
        echo "Exited.";
        exit(); 

    }
}

worker.log

[2018-03-21 10:14:27][1] Processing: MyApp\Jobs\Crawl
Started.
Exited.
[2018-03-21 10:15:59][1] Processing: MyApp\Jobs\Crawl
[2018-03-21 10:15:59][1] Failed:     MyApp\Jobs\Crawl

来自Horizon失败的工作细节

Failed At    18-03-21 10:15:59
Error        Illuminate\Queue\MaxAttemptsExceededException:
             MyApp\Jobs\Crawl has been attempted too many 
             times or run too long. The job may have previously 
             timed out. in /home/vagrant/app/vendor/laravel
             /framework/src/Illuminate/Queue/Worker.php:396

laravel-worker.conf

[program:laravel-worker]
process_name=%(program_name)s_%(process_num)02d
command=php /home/vagrant/myapp/artisan queue:work --sleep=3 --tries=1 --timeout=3600
autostart=true
autorestart=true
user=vagrant
numprocs=1
redirect_stderr=true
stdout_logfile=/home/vagrant/myapp/worker.log

config / queue.php

'redis' => [
    'driver' => 'redis',
    'connection' => 'default',
    'queue' => 'default',
    'retry_after' => 90,
    'block_for' => null,
],

.env

QUEUE_DRIVER=redis

故事梗概

看着我的 worker.log 我可以看到我 class 的输出有效：

Started.
Exited.

但据报道这项工作失败了 . 为什么？奇怪的是，同样在_1837117中，它为一项工作说了两次 Processing ：

[2018-03-21 10:15:59][1] Processing: MyApp\Jobs\Crawl
[2018-03-21 10:15:59][1] Failed:     MyApp\Jobs\Crawl

任何帮助是极大的赞赏！

更新

删除_1837120已解决了这个问题 - 这很奇怪，因为PHP手册说你可以使用 exit() 退出程序"normally"：
https://secure.php.net/manual/en/function.exit.php

<?php

//exit program normally
exit;
exit();
exit(0);