Hi. What happens if the job has not finished but another schedule is going to be triggered. Does the job run even if the previous job hasnt finished running?

I had this in the past and a 2nd instance of the job was triggered yes, but it was also a while ago

Yeah the schedule will launch another job, unless you're using concurrency controls to limit the concurrency for the job

I mean the same job not a different one. So if the same job is not finished, will it trigger it in the next schedule? Or will it ignore it since it hasn't finished running?

It doesn't matter if it's the same job or different job. If you don't have any concurrency controls set up, Dagster will trigger the new run in the next schedule regardless of whether the first one is finished