[Halld-online] gluon maintenance

[David Lawrence]

Hi Hovanes,

  This is just to upgrade the kernels right now. I agree that we can leave those computers
alone for the time being. I will remove them from my list.

Regards,
-David

On Jun 6, 2016, at 9:08 AM, Hovanes Egiyan <hovanes.egiyan at gmail.com> wrote:

> Rebooting gluon25, gluon26, gluon29, gluon30 would require
> coordination with Tim and with cryo group. We probably should
> do the others first, and then do guon25 to gluon31 separately
> to minimize the impact on operations.
> 
> Is this just to upgrade of kernel or you want to synchronize the RPM
> packages too?
> 
> Hovanes
> 
> 
> 
> On 06/06/2016 08:18 AM, David Lawrence wrote:
>> My plan is to update the kernel in all of the computers using 2.6.32-358.18.1.el6
>> so they will need to be rebooted. However, if you would rather this not happen for the
>> gluon25-gluon29 computers, I will skip them.
>> 
>> Regards,
>> -David
>> 
>> On Jun 6, 2016, at 8:14 AM, Hovanes Egiyan <hovanes.egiyan at gmail.com> wrote:
>> 
>>> Hi Dave,
>>> which computers will be taken offline for this?
>>> Hovanes
>>> 
>>> 
>>> On 6/6/2016 8:09 AM, David Lawrence wrote:
>>>> Hi All,
>>>> 
>>>>   I would like to do some maintenance on several of the gluon computers on Tuesday morning.
>>>> This includes:
>>>> 
>>>> 1. updating the kernels so that all of our RHEL6 computers are running the same version
>>>> (see current status here: https://halldweb.jlab.org/wiki/images/2/25/20160601_kernel_versions.pdf).
>>>> 
>>>> 2. Change default compiler for gluon40-gluon111 and gluonraid1-gluonraid2 to be gcc 4.9.2
>>>> (gluon01-gluon39 will remain at gcc 4.4.7)
>>>> 
>>>> 3. Upgrade default Python version to 2.7
>>>> 
>>>> 
>>>> These will require some computers to be offline temporarily or in a state of flux.
>>>> If you have any issues with this occurring tomorrow morning, please let me know.
>>>> 
>>>> Regards,
>>>> -David
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>