Go Rebootless on Linux with Ksplice

摘要

When a Linux kernel updates, a reboot is required to apply the changes as you have to boot with the new kernel features. And in cases when the system happens to be a server, rebooting becomes painful as it contributes to the downtime of the system. Again when you have customer SLAs where you have to stick to 5 nines or 7 nines, this small little upgrade can cause you face tremendous pressure. At the same time security updates or even for that matter any kernel update is not something you can afford to ignore.