SQL Relay is a persistent database connection pooling, proxying, and load balancing system. It supports many database systems and programming languages. There are drop-in replacement libraries for MySQL and PostgreSQL, command line clients, a GUI configuration tool, and extensive documentation. The APIs support advanced database operations such as binding variables, multi-row fetches, client-side result set caching, suspended transactions, query routing, and query filtering. It can be used for speeding up database-driven Web-based applications, accessing databases from unsupported platforms, migrating between databases, distributing access to replicated databases, and throttling database access.
Stencil is a library for developing Web-based applications in C++. It includes request and response objects, a skinnable template engine, server API abstraction, and facilities for load balancing, browser jogging, security and catching runaway CGIs. It also includes some useful Javascripts and images. Stencil is the successor to Groundwork.