SnowLens Offers Free Snowflake Observability With No Data Egress

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SnowLens is a free Streamlit app that installs directly inside a Snowflake account, allowing teams to monitor query performance and credit costs without sending data to external services. Built by data engineer Abin Alex, the tool runs on the user's own Snowflake compute, eliminating vendor lock-in and additional subscription costs. It includes nine detection rules covering issues such as slow queries and abnormal credit spikes, defined as hourly usage exceeding two standard deviations above a warehouse's baseline. The app reads only from Snowflake's internal metadata views like QUERY_HISTORY and does not access any business data, tables, or query results. To handle memory constraints within Streamlit-in-Snowflake, SnowLens truncates query text to 300 characters and attributes cost usage by query tag, dbt model, or role.

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ProgrammingDEV Community ·

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