Open source innovation: Ksplice
Updating operating systems can be a tricky affair. Whether the goal is to update device drivers or fix vulnerabilities in core services, successfully patching a running OS typically requires a reboot -- and nothing is more disruptive than that, especially for high-traffic servers. With Ksplice, Linux users have an alternative. Originally developed by a group of MIT alumni, Ksplice is a technology that allows software maintainers to create special binary patches that can be inserted directly into a running OS kernel. No reboot is necessary; the system experiences only a momentary pause as Ksplice suspends operations, applies the patches, then resumes normal processing, almost as if nothing ever happened.
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Republished with permission from InfoWorld (view original version)