Explanation:
The correct answer is to use cluster pools to reduce the startup time of the jobs. Cluster pools allow you to reserve VMs in advance, so when a new job cluster is created, VMs are allocated from the pool. Note: While VMs are waiting to be used by the cluster, the only cost incurred is for Azure. Databricks runtime cost is billed only once a VM is allocated to a cluster. For a demonstration and best practices, visit: Databricks Academy.
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You've observed that your job cluster takes 6 to 8 minutes to start, delaying your job's completion. What steps can you take to reduce the cluster startup time?
A
Reduce the size of the cluster; smaller clusters start up faster.
B
Use SQL endpoints to decrease the startup time.
C
Utilize cluster pools to reserve VMs ahead of time, reducing job startup time.
D
Set up a preliminary job to start the cluster, ensuring resources are ready when needed.
E
Switch to an all-purpose cluster to minimize startup time.
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