Apache Spark - A unified analytics engine for large-scale data processing

Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees.

A simple client for Android

⚡ High performance websocket servers implemented by Spray-can, Netty, undertow, jetty, Vert.x, Grizzly, node.js and Go. It supports 1,200,000 active websocket connections

MySQL binary log consumer with the ability to act on changed rows and publish changes to different systems with emphasis on Apache Kafka.