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Data & Analytics · Foundational

Auto-Suspend

A setting that suspends a Snowflake warehouse after a set idle period so it stops using credits; auto-resume restarts it when queries arrive.

Definition

A short auto-suspend saves credits, but suspending drops the warehouse's local disk cache, so the right value balances cost against cache reuse. Auto-resume is enabled by default.

Example

ALTER WAREHOUSE etl_wh SET AUTO_SUSPEND = 60;

Exam tip

Very aggressive auto-suspend can hurt BI performance because the warehouse cache is lost.

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