Michael Bahr • 5/29/2019

Analysis of DynamoDB’s TTL delay

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This technical article investigates the real-world delay between a DynamoDB item's Time-To-Live (TTL) expiration and its actual deletion. It details a test setup using Lambda and DynamoDB Streams to measure delays, finding correlations with table size (1,000 vs. 100,000 entries). The results show delays ranging from 8-13 minutes for smaller tables to 17-28 minutes for larger ones, highlighting the need for monitoring as workloads scale.

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#serverless #aws #lambda
Analysis of DynamoDB’s TTL delay

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