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. 

[Kaniz_Fatma]

Hi @greyamber, 

Cluster Purpose:

• All-purpose clusters, such as ad hoc analysis, data exploration, and development, are designed for collaborative use. Multiple users can share them.
• On the other hand, job clusters are specifically for running automated jobs. They terminate once the job is completed, reducing resource usage and cost.

SLA Requirements:

• A job cluster might be more suitable if your workflow requires meeting a strict Service Level Agreement (SLA). Job clusters are dedicated to a specific task and can be optimized for performance.
• All-purpose clusters, while versatile, may not provide the same level of predictability in meeting SLAs.

Resource Usage and Cost:

• All-purpose clusters are more cost-effective for tasks like exploration and development, where resource sharing is beneficial.
• Job clusters are more efficient for focused, time-sensitive tasks, as they release resources promptly after completion.

Trade-offs:

• All-purpose clusters allow flexibility but may not guarantee immediate availability due to resource sharing.
• Job clusters prioritize your specific job but come with higher resource costs.

Given your requirement for immediate availability, I recommend using a job cluster. It ensures that your REST API calls run promptly and efficiently, meeting your SLA. The cluster terminates once the processing is complete, minimizing resource usage and cost.

[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. 

[Kaniz_Fatma]

Hi @greyamber, Could you please configure it appropriately, so it will efficiently handle your REST API calls while meeting your SLA? Remember to adjust the cluster size based on your workload to strike the right balance between perfo...

[azde89]

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

[Kaniz_Fatma]

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[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.