Set GlueJob Schedule at 45 minutes interval

Question

I'm using Glue to process data and want to schedule the job to run every 45 minutes using Glue Schedule with this cron expression: 0/45 * * * ? *.

The expected time of running may adhere to this pattern:
8:00 => 8:45 => 9:30 => 10:15 => ...

But the actual time running is out of expectance like this:
8:00 => 8:45 => 9:00 => 9:45 => ...

Can you provide some help here? Thanks in advance.

Accepted Answer

Cron jobs does not support this pattern. Either create 3 different cron jobs (as indicated by @Riku_Kobayashi), or use EventBridge Scheduler with `rate (45 minutes)` and a Glue job as the target.

Answer

Hello.

"0/45 * * * ? *" will be a cron that runs at 0 and 45 minutes every hour.  
If you want it to run every 45 minutes, I think you'll need to make it three jobs.  
I think that what you want to do probably cannot be configured with just one cron, so I think you will need three crons as shown below.  
```
*/45 */3 * * ? *
30 1-22/3 * * ? *
15 2-23/3 * * ? *
```

Set GlueJob Schedule at 45 minutes interval

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