PHP Cron job consuming memory

Question

I am calling a MYSQL function from the PHP controller in Codeigniter. When I execute the controller function through browser by mentioning the URL all works fine and memory consumption is not significant.

BUT when I use the same link in a cronjob it consumes so much memory. Effectively it consumes 99% of the 4GB server memory within 2-3 hours when executing cron every 4 minutes.

Could you please advise a solution for this.

Answer 1

我感觉到的问题不是MySQL查询，而是整个查询执行一个完整周期。您已将时间设置为每4分钟一次，所以我认为4分钟后，以前的进程存在并且一个新进程正在启动，最终有这么多进程正在运行，这正在消耗服务器内存。请增加时间间隔并进行测试。