scheduleExpression

A cron expression that describes details about the monitoring schedule.

The supported cron expressions are:

• If you want to set the job to start every hour, use the following:Hourly: cron(0 * ? * * *)

• If you want to start the job daily:cron(0 [00-23] ? * * *)

• If you want to run the job one time, immediately, use the following keyword:NOW

For example, the following are valid cron expressions:

• Daily at noon UTC: cron(0 12 ? * * *)

• Daily at midnight UTC: cron(0 0 ? * * *)

To support running every 6, 12 hours, the following are also supported:

cron(0 [00-23]/[01-24] ? * * *)

For example, the following are valid cron expressions:

• Every 12 hours, starting at 5pm UTC: cron(0 17/12 ? * * *)

• Every two hours starting at midnight: cron(0 0/2 ? * * *)

• Even though the cron expression is set to start at 5PM UTC, note that there could be a delay of 0-20 minutes from the actual requested time to run the execution.

• We recommend that if you would like a daily schedule, you do not provide this parameter. Amazon SageMaker will pick a time for running every day. You can also specify the keyword NOW to run the monitoring job immediately, one time, without recurring.