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Google Developing "Live Update Orchestrator" As New Means Of Live Linux Kernel Updates
While there is Kpatch, Ksplice, and other live patching solutions already in use for patching a running Linux kernel for deploying security updates without downtime, Google engineers are developing the Live Update Orchestrator as a new means of transitioning to a new updated kernel with minimal downtime.
The primary use case is in cloud environments, allowing hypervisor updates without fully disrupting running virtual machines by keeping selected devices alive across the reboot boundary. The core of LUO is a state machine that tracks the progress of a live update, along with a callback API that allows other kernel subsystems to participate in the process. Those wanting to learn more about the in-development Live Update Orchestrator can do so via the RFC patch series.About The AuthorMichael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience.
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