How to prevent duplicate scheduler task registe across multiple Asynq server nodes about asynq HOT 5 CLOSED

I have the following code, but if multiple instances of asynq are started, the scheduled task may be registered to Redis repeatedly. How to avoid this?

....
task := asynq.NewTask(pb.SchedulerType_STAT_CAR_UPTIME.String(), nil)
entryID, err := l.svcCtx.Scheduler.Register(crontab, task)
....

from asynq.

@wwwfeng Yes. If multiple instances of scheduler are started, task will be scheduled multiple times.
Refer to this thread #395 for solution.

from asynq.

@wwwfeng Yes. If multiple instances of scheduler are started, task will be scheduled multiple times. Refer to this thread #395 for solution.

Thanks for your reply. I checked the documentation and used asynq.TaskID and asynq.Retention, and it seems to be effective. Does this mean that the same scheduled task will only be written once within the time set by asynq.Retention?

from asynq.

Retention time dictates for how much long task is gonna stay in the system. And any task enqueued with same taskID will give asynq.ErrTaskIDConflict error.

from asynq.

Retention time dictates for how much long task is gonna stay in the system. And any task enqueued with same taskID will give asynq.ErrTaskIDConflict error.

Thank you so much for your response.I understand now.

from asynq.