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Upcoming KernelCare OpenVZ patch available: ms/hrtimer: Backport CLOCK_BOOTTIME feature ...
I have just been notified by Igor from KernelCare that a patch for backporting/implementing this
ms/hrtimer: Backport CLOCK_BOOTTIME feature, needed for latest systemd (#2937)
from the OpenVZ 042stab094.7 kernel will be released tomorrow and that this patch is available for testing by now already.
This patch essentially allows hardware nodes running an older version than 042stab094.7 to run OpenVZ containers with Debian 8 or Ubuntu 15.04 without issues.
Recent messages from Igor:
I am sorry about the delay -- it was very complex piece of code to patch, especially for older kernels, but it is ready now.
you can install it by running:
kcarectl --update --test
We should publish it to production by tomorrow.
Just in case, you might want to disable auto-update until tomorrow, so it wouldn't revert to the version in production (when we push it to production)
To do that, please edit:
/etc/sysconfig/kcare/kcare.conf
and change AUTO_UPDATE to False
Comments
Hey @Fusl
Awesome. We'll no longer need to migrate customers to newer servers to have their Ubuntu 15 or Debian 8 work.
Out of curiousity, wouldn't like 30min of planned downtime on your older nodes be better than manually migrating every customer that wants to run newer OS's?
Not if that client has no interest in Ubuntu 15 or Debian 8.
Sweet!
We run Kernelcare on everything to keep them up to date. Regarding customers that want to run Debian 8 or Ubuntu 15, there's been very few, maybe one or two a day, and....
Mr. Wych has it down: I'm not going to subject an entire node of content and happy clients to arbitrary downtime so one client can run a newer OS.
This.
That's what the health sector thinks too - the result, many still use Java 1.5 and .Net 2.0.
Patch has just been officially released: