What is DAX? Amazon DynamoDB Accelerator Explained

What is DAX? Amazon DynamoDB Accelerator (DAX) is a fully managed, in-memory cache specifically built for DynamoDB. It reduces read latency from milliseconds → microseconds It's like giving your DynamoDB a nitro boost! No need to write caching logic — DAX handles it automatically. Think of DAX like Redis, but tightly integrated and purpose-built for DynamoDB. How DAX Works (Under the Hood) Instead of your app hitting DynamoDB directly, it hits the DAX cluster endpoint, which: Checks if the data is in the cache If yes: returns super-fast from memory

Apr 17, 2025 - 00:29
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What is DAX? Amazon DynamoDB Accelerator Explained

What is DAX?

Amazon DynamoDB Accelerator (DAX) is a fully managed, in-memory cache specifically built for DynamoDB.

It reduces read latency from milliseconds → microseconds

It's like giving your DynamoDB a nitro boost!

No need to write caching logic — DAX handles it automatically.

Think of DAX like Redis, but tightly integrated and purpose-built for DynamoDB.

How DAX Works (Under the Hood)

Instead of your app hitting DynamoDB directly, it hits the DAX cluster endpoint, which:

  • Checks if the data is in the cache
    • If yes: returns super-fast from memory