[CentOS-devel] Balancing the needs around the RHEL platform

Sun Dec 27 12:45:50 UTC 2020
Jean-Marc Liger <jean-marc.liger at parisdescartes.fr>

Le 27/12/2020 à 13:08, Ljubomir Ljubojevic a écrit :
> On 12/27/20 12:29 PM, Alexander Bokovoy wrote:
>> On pe, 25 joulu 2020, Ljubomir Ljubojevic wrote:
>>> On 12/24/20 2:37 PM, Neal Gompa wrote:
>>>> In the strictest sense, it obviously is not. But in a very real
>>>> practical sense, it absolutely is. Aside from the kernel issues (which
>>>> I firmly believe are solvable), people are generally not going to
>>>> notice a difference between CentOS Linux 8 and CentOS Stream 8.
>>>> My CentOS Linux 8 boxes were replaced with CentOS Stream 8 back in the
>>>> spring because it was strictly better for production *and*
>>>> development. I've been in the process of opportunistically switching
>>>> our build targets from CentOS Linux 8 to CentOS Stream 8 most of the
>>>> year. With the retirement of CentOS Linux 8, it now becomes more of a
>>>> priority, but it was already going to happen.
>>> As I understood it, Stream is not in full swing yet, there is no
>>> active/daily contribution from RHEL team?
>> "Active/daily" contribution is pretty much a seasonal thing unrelated to
>> the actual processes. Right now majority of engineers contributing to
>> RHEL 8 sources are on their holidays and end of year vacation time. You
>> can notice these "activity dives" also in Fedora Project annual reports by
>> Matthew Miller, like
>> https://mattdm.org/fedora/2020nest/StateOfFedora2020.pdf.
>> This is a well-known phenomenon in Fedora community.
> Johnny Hughes wrote that Stream is not yet ready, that certain parts are
> not in place. I did not bother to retain specifics since I will not be
> using it at any time in the future, I only need to know enough to notify
> or answer on Facebook where I am admin.
> <snip>
>>> What will happen to your system when/if there is new kernel change every
>>> few days? How much "punishment" can your system handle safely?
>> You certainly control when you can and want upgrade your deployment
>> systems. It has nothing to do with the cadence of updates coming into a
>> distribution.
>> I find this fixation on the kernel updates is skewing things a lot.
>> Kernel, certainly, is important, but it is not the thing that is RHEL or
>> CentOS distribution, alone.
> It is crucial issue if you install any kernel module not provided by Red
> Hat (3rd party drivers). If some software that you might or might not
> use brakes, you can mess around your working system and fix it.
> But if after dnf update your system crashes or network is down, and it
> is bare metal system, they you are f**ked, you need to reach the system
> manually (I install on regular PC hardware without ILO) and reverse to
> prior kernel. Even if I am quick about it, it will be very embarrassing
> for me in front of my clients (small in number as they are) whose work
> will stop for that period, so I will not be caught dead using CentOS
> Stream, I do not need the potential headache, embarrassment.

Move to Oracle UEK kernels should be the solution, they use the same updated
version for EL7 and EL8.


*Jean-Marc LIGER*
Chef du Service Informatique
UFR de Médecine de Paris Centre
15 rue de l'Ecole de médecine 75270 PARIS CEDEX 06
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