App Engine Pull queue only load a subset of tasks

Question

Can I set a minimum time before a task is fetched from the task queue? I want to process a task after X days e.g. Is there a simple way or should I put this information it the task itself? It sounds inefficient to load all the tasks every 2 hours (e.g. with a cron job) if most of then should only be executed in 3 days.

Answer 1

You can set etaMillis or countdownMillis in TaskOptions.

No worker should be allowed to lease the tasks before the specific time is elapsed as shown in the Task Queue Python documentation:

Argument: countdown

Functionality in Pull Queues: Designates how long to wait, in seconds, before allowing the task to be leased.

Argument: eta

Functionality in Pull Queues: Designates the earliest time that a worker can lease a task. No worker can lease a task