[papercruncher]

If you can tolerate some latency on writes, AWS Kinesis is perfectly serviceable. You can write your own "stream" processing logic in a number of languages and the provided KCL/SDK from Amazon does most of plumbing. Eventually, you will probably want to move to something more sophisticated though.

[alexatkeplar]

Exactly this - here's some simple windowing/counting in JavaScript with Kinesis, Lambda and DynamoDB, no JVM in sight :-) https://github.com/snowplow/aws-lambda-nodejs-example-projec...

[justinsaccount]

a hosted service is a non-starter for my use cases :-/