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Question 424 - COF-C02 discussion

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When should a multi-cluster virtual warehouse be used in Snowflake?

A.
When queuing is delaying query execution on the warehouse
Answers
A.
When queuing is delaying query execution on the warehouse
B.
When there is significant disk spilling shown on the Query Profile
Answers
B.
When there is significant disk spilling shown on the Query Profile
C.
When dynamic vertical scaling is being used in the warehouse
Answers
C.
When dynamic vertical scaling is being used in the warehouse
D.
When there are no concurrent queries running on the warehouse
Answers
D.
When there are no concurrent queries running on the warehouse
Suggested answer: A

Explanation:

A multi-cluster virtual warehouse in Snowflake is designed to handle high concurrency and workload demands by allowing multiple clusters of compute resources to operate simultaneously. The correct scenario to use a multi-cluster virtual warehouse is:

A . When queuing is delaying query execution on the warehouse: Multi-cluster warehouses are ideal when the demand for compute resources exceeds the capacity of a single cluster, leading to query queuing. By enabling additional clusters, you can distribute the workload across multiple compute clusters, thereby reducing queuing and improving query performance.

This is especially useful in scenarios with fluctuating workloads or where it's critical to maintain low response times for a large number of concurrent queries.

References:

Snowflake Documentation: Multi-Cluster Warehouses at Snowflake Documentation

asked 23/09/2024
Austine Ogheneruemu Onakpoma
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