Select job cluster vs all purpose cluster

[greyamber]

I have workflow and need to run at every 1 minute interval, it is rest api call, should I go for all purpose cluster or job cluster to meet the SLA. We need to get the as soon as it is available. 

[greyamber]

I’m bit confused. 
when I scheduled the job in job cluster. It took nearly 3 mins to spin up back. 
so that I can’t meet the SLA of 1 min. 

[azde89]

Thank you Kaniz_Fatma for these clear insights on All-purpose and Job clusters

[kulkpd]

@greyamber Interactive cluster costs two time more than job cluster. can you explain use-case of why job API needs to invoked and what API is doing. 

[greyamber]

We need to pull data from an api endpoint at every 1 minute interval. Time to fetch and process is 30 seconds. 
if we use job cluster once the process completes it get terminated and for next run we have to wait ~3-5 mins to spin up the cluster. Which over pass our SLA 1 minute.