GCP App Engine上的节点cron作业在周末不工作

Question

I have a problem executing a cron job in node/express application using node-cron library. The application is deployed on Google Cloud App Engine.

I want to send automatic emails every day at 9 AM, but the cron only work from Monday to Friday.

Here is my code:

 cron.schedule("0 9 * * *", () => {
  sendEmails();
 },{
    scheduled: true,
    timezone: "Europe/Paris"
  });

Thanks

Answer 1

App Engine standard scales down to 0 instances if there is no traffic, if it happens that at 09:00 saturday/sunday there isn't any instance your Node cron job will not be executed.

---

Have you checked cron.yaml . Is this the preferred method for scheduling cron jobs in App Engine. The sheduling job would be the following:

# cron.yaml
cron:
- description: "daily summary job"
  url: /tasks/sendemail
  schedule: every day 09:00

# end cron.yaml

With schedule: every day 09:00 being the specified custom interval