Reuse Snowflake connections in AWS Lambda?
Jeremy Daly talks about reusing RDS connections in AWS Lambda. I assume this principle of establishing the connection outside of the Lambda handler's context would work for Snowflake connections too?
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Hi there,
The general advice for any SDK clients and database connections would be to initialize them outside of the function handler, and cache static assets locally in the /tmp directory. Subsequent invocations processed by the same instance of your function can reuse these resources. This saves cost by reducing function run time.
This would also apply to third-party database tools such as Snowflake.
Should you wish to learn more about how Lambda may re-use it's containers, please see [1].
Thank you,
Ahmad
[1] https://aws.amazon.com/blogs/compute/container-reuse-in-lambda/
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