DynamoDB Local Terrible Performance

Question

DynamoDB local is taking 100+ ms to perform a single put operation against my table. The docs say that throughput is ignored for local dbs, and is only limited by the speed

Answer 1

This is an old question, but is still quite relevant - according to Stackoverflow it has been viewed over 2,000 times over the years. As FLXN already explained in his answer, DynamoDB Local was meant to be a tool for developing applications - it wasn't meant to be a real installable replacement for DynamoDB. It is neither efficient enough, nor highly-available or durable enough, to serve as a real database.

But since recently, an alternative is available if you want a real (highly-available and efficient) installable database with DynamoDB API compatibility: ScyllaDB recently announced that the open-source Scylla database now has DynamoDB API support. This support is not yet perfect and still missing a few DynamoDB features, but compatibility is improving quickly and you can check out this document for the current status of Scylla's compatibility with the DynamoDB API.

Full disclosure: I'm a ScyllaDB employee, and one of the developers of Alternator - Scylla's support for the DynamoDB API.