[slurm-users] Problem with permisions. CentOS 7.8

[Ole Holm Nielsen]

Hi Ferran,

Normally the munge and slurm services are run by two distinct users, but 
you said that you run munge as the slurm user?

Questions:

1. Did you install the munge RPM from EPEL?

2. Did you check the instructions in 
https://wiki.fysik.dtu.dk/niflheim/Slurm_installation#munge-configuration-and-testing 
?

Best regards,
Ole

On 28-05-2020 20:20, Ferran Planas Padros wrote:
> Hi Rodrigo,
> 
> 
> I am already following the instructions, but when I start munge it does 
> not work. I get this error (on journalctl):
> 
> 
> munged: Error: Failed to check logfile "/var/log/munge/munged.log": 
> Permission denied
> 
> 
> But, I insist, the ownership is correctly set
> 
> 
> If I run munge -n I get:
> 
> /var/run/munge/munge.socket.2
> 
> 
> munge.log is not writing any lines when I run this command.
> 
> 
> Best,
> 
> Ferran
> 
> 
> 
> ------------------------------------------------------------------------
> *From:* slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of 
> Steven Senator (slurm-dev-list) <slurm-dev-list at senator.net>
> *Sent:* Thursday, May 28, 2020 7:10:26 PM
> *To:* Slurm User Community List
> *Subject:* Re: [slurm-users] Problem with permisions. CentOS 7.8
> What is in /var/log/munge/munged.log?
> Munge is quite strict about permissions in its whole hierarchy of
> control and configuration files, appropriately.
> 
> On Thu, May 28, 2020 at 11:01 AM Rodrigo Santibáñez
> <rsantibanez.uchile at gmail.com> wrote:
>>
>> Hello,
>>
>> You could find the solution here
>> https://wiki.fysik.dtu.dk/niflheim/Slurm_installation
>>
>> Best regards
>>
>> El jue., 28 de mayo de 2020 12:55, Ferran Planas Padros <ferran.padros at su.se> escribió:
>>>
>>> Hello,
>>>
>>>
>>> I have installed Slurm under CentOS 7.8 Kernel 3.10.0-1127.el7.x86_64. The Slurm version I have installed is 14.03.3 along with Munge 0.5.11.
>>>
>>> I know these are not the latest versions, but I wanted to have consistency in all my nodes.
>>>
>>>
>>> I am facing a problem when I try to start Munge in the nodes with CentOS 7.8. Anytime I want to start Munge (service munge start) I get the error that I detail below.
>>>
>>>
>>> 'munged[36385]: munged: Error: Failed to check logfile "/var/log/munge/munged.log": Permission denied'
>>>
>>>
>>> I run the command as slurm user, and the /var/log/munge folder does belong to slurm.
>>>
>>>
>>> I have the exact same setup on older nodes which are working under CentOS 6.6 and 6.5, and there I have no problem. At the end of the year we plan to migrate all nodes to CentOS 7.x, and I really need to understand what is happening here.