只执行一次 cronjob [英] execute a cronjob exactly once

问题描述

我有一个 cronjob，它会逐行循环并更新 MySQL 表.表完成"后，我想再执行一次 cronjob，以执行各种清理活动.有没有办法在 MySQL 表中存储一段元数据，以便我可以设置一个值来测试后续的 cron 循环以强制退出?

I have a cronjob that loops through and updates a MySQL table row by row. After the table is 'completed', I would like to execute the cronjob exactly 1 more time, to perform various cleanup activities. Is there a way to store a piece of metadata in the MySQL table so that I can set a value to test for on subsequent cron loops to force an exit?

现在我有:

if (count($records)==0) {  // table completed
    $result = $this->mlist_model->updatelist();  // EXECUTE EXACTLY ONCE

    // SET SOME SORT OF FLAG HERE TO TEST FOR AND EXIT
    exit;
}

推荐答案

您只需要 at 命令

这篇关于只执行一次 cronjob的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！