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A distributed service locator, written on top of Node.js
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Dislocate - A distributed service locator ------ Dislocate aims to eliminate the need to configure 'where' a service is available on a network, and enable auto discovery of new services, and high performance location of these services by clients. Dislocate is a combination of what monitoring, DNS and load balancers are meant to do -- but maintaining those services on a large scale distributed system is a significant toll on sysadmins. Dislocate aims to reduce the amount of work that sysadmins need to do to maintain properly scaling architectures on distributed, disperse and dynamic networks. Clients on the localhost ask Dislocate for a service, via either HTTP or a file on disk. Dislocate provides information about both the service, and the machine hosting it, so that the clients can make load balancing decisions, like using the least loaded slave SQL server. Dislocate itself bootstraps based upon a few seed nodes, and then forms a peer to peer network over TCP with other Dislocate nodes. Communication between each node is authenticated by a shared secret. Services register themselves with their local Dislcoate instance on startup, and then Dislocate will advertise them to other peers. The service can register how Dislocate should see if its still alive, including TCP health checks or other custom functions. Status ------ Pre-Alpha. Lots of work to do, I've been trying to hack down the TODO file whenever I get a chance. I welcome help: IRC: pquerna on Freenode (#bloglines or other channels). E-Mail: <pquerna apache.org>