Exporting DynamoDB table to S3

Question

I am trying to figure out the number of objects that gets created inside the S3 bucket when we make use of DynamoDB Export to S3 feature. We have a table whose size is around ~500TB that we want to export to S3.

I couldn't figure out how many objects would get created and what would be the size of each object when we do an export.

Leeroy Hannigan · Answer

Its difficult to estimate how many files will be created. Usually its close to 1 file per 1GB of uncompressed data. Meaning you can expect approximately 50k objects for your export of 500TB:

`500TB / 1GB = 500,000`

Compressed size of each s3 object will likely be ~200 mb assuming 80% compression of json format.

Exporting DynamoDB table to S3

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