Php 该作业尝试次数太多或运行时间太长

我对Laravel 5.7中的作业调度有问题。 我需要在作业中提取客户的数据，但每次在prod服务器上运行时，我都会

[2020-01-02 13:02:02] production.INFO: Job started  
[2020-01-02 13:02:02] production.INFO: ===================  
[2020-01-02 13:02:02] production.INFO: Contest: name
[2020-01-02 13:02:02] production.INFO: ===================  
[2020-01-02 13:12:08] production.INFO: Job started  
[2020-01-02 13:12:08] production.INFO: ===================  
[2020-01-02 13:12:08] production.INFO: Contest: name
[2020-01-02 13:12:08] production.INFO: ===================  
[2020-01-02 13:22:15] production.INFO: Job started  
[2020-01-02 13:22:15] production.INFO: ===================  
[2020-01-02 13:22:15] production.INFO: Contest: name
[2020-01-02 13:22:15] production.INFO: ===================  
[2020-01-02 13:32:21] production.INFO: Job started  
[2020-01-02 13:32:21] production.INFO: ===================  
[2020-01-02 13:32:21] production.INFO: Contest: name
[2020-01-02 13:32:21] production.INFO: ===================  
[2020-01-02 13:42:28] production.INFO: Job started  
[2020-01-02 13:42:28] production.INFO: ===================  
[2020-01-02 13:42:28] production.INFO: Contest: name 
[2020-01-02 13:42:28] production.INFO: ===================  
[2020-01-02 13:44:33] production.ERROR: App\Jobs\SendContestMailToFans has been attempted too many times or run too long. The job may have previously timed out. {"exception":"[object] (Illuminate\\Queue\\MaxAttemptsExceededException(code: 0): App\\Jobs\\SendContestMailToFans has been attempted too many times or run too long. The job may have previously timed out. at /home/forge/loycals.com/vendor/laravel/framework/src/Illuminate/Queue/Worker.php:401)
[stacktrace]

这是一个工作机构。正如我从日志中看到的，作业在拉取收件人时停止

private function sendContestEmails()
{
    Log::info('Job started');

    $contest = $this->contest->load([
        'prizes',
        'primary_sponsor',
        'secondary_sponsors',
    ]);

    Log::info('===================');
    Log::info('Contest: ' . $contest->title);
    Log::info('===================');

    $recipients = $contest->primary_sponsor->first()->subscribers()->whereDate('email_sent_at', '<=', Carbon::now()->subWeek()->format('Y-m-d H:i:s'))->orWhereNull('email_sent_at')->get(); // list of subscribers (which is a unique list of fans for that sponsor)

    $count = 1;
    foreach($recipients as $recipient) {
        $count++;
    }
    Log::info('===================');
    Log::info('Recipients: ' . $count);
    Log::info('===================');


    $sponsor = $contest->primary_sponsor->first();
    $subject = 'New Contest at ' . $sponsor->title; // venue title

    Log::info('===================');
    Log::info('Sponsor: ' . $sponsor->title);
    Log::info('===================');

    Log::info('Job finished');
}

private函数sendCompetingEmails（）
{
日志：：信息（“作业已启动”）；
$contest=$this->contest->load([
“奖品”，
“主要赞助商”，
“二级赞助商”，
]);
日志：：信息（'========================='）；
日志：：信息（'Contest:'.$Contest->title）；
日志：：信息（'========================='）；
$recipients=$contest->primary\u赞助商->first（）->subscribers（）->whereDate（'email_sent_at'，'你永远不会收到收件人的回音，因此很可能是查询出了问题。你必须专门尝试一下，以找出为什么需要这么长时间。另请注意，由于$recipients将是一个Laravel集合，因此可以使用
$count=$recipients->count（）；
获取总数而不是使用foreach循环。@aynber是的，由于某种原因，当我交换NotNull和WhereDate以使NotNull成为第一个条件时，它起了作用！这很奇怪，因为在我的本地计算机和临时服务器上，旧队列工作正常。谢谢！您可以尝试添加->toSql（）在查询结束时，转储结果以检查两个场景中的情况（whereDate为first vs.whereDate为last）。首先，此部分
$recipients=$contest->primary\u赞助商->first（）->subscribers（）->whereDate（'email\u sent\u at'，'first，此部分[code]$recipients=$contest->primary\u赞助商->first（）->subscribers（）->whereDate（'email\u sent at'，'first，此（）->where date（'email_sent_at'，'count（）；检查是否为空（$recipient->email）；您想发送电子邮件，是吗？