herd

A simple wrapper over node cluster for zero-downtime reloads

cluster-master-ext

A module for taking advantage of the built-in `cluster` module in node v0.8+, enables rolling worker restarts, resizing, repl, events, configurable timeouts, debug method. Zero downtime deploy of workers. Extended version of cluster-master

rollstarts

A simple Node.js package to implement zero-downtime rolling restarts within your application.