Erica,
sure it could be changed. But then you have to change all the
permissions of the different folders that slurm uses to reflect that.
Running daemons as root is discouraged since a few years for security
reasons. This doesn't necessarly mean that the daemon is started by that
user account but that it gives up all those privileges that it doesn't
need right after the start and that it also changes the EUID (effective
user id) once it did setup all the things it needs root privileges for
(like binding a socket <1024).
The keyword to search for is "capabilities". A very good and detailed
book about this and many other topics is "The Linux Programming
Interface" by Michael Kerrisk (http://man7.org/tlpi/)
Can you tell us how you installed slurm? Did you compile it yourself or
used RPMs? If you used RPMs, those should have created the user account
I was referring to.
I didn't have problems installing by following
http://slurm.schedmd.com/quickstart_admin.html
Regards,
Uwe
Am 05.08.2014 22:20, schrieb Erica Riello:
Re: [slurm-dev] Re: Re:
Hi Uwe,
I thought it could be changed to another user. Well, if it is the user
who will run the daemons, shouldn't it be root?
Regards,
Erica
2014-08-05 17:10 GMT-03:00 Uwe Sauter <[email protected]
<mailto:[email protected]>>:
Hi Erica,
I think you misunderstood the concept of "service user" in Linux.
SlurmUser in the slurm.conf doesn't mean which user should be able
to use SLURM (submit jobs, etc.) but which system user will run
the slurm control daemon and slurm database daemon. This user is
usually called "slurm".
Here's the line of my /etc/passwd for this user:
slurm:x:222:222:SLURM Manager:/:/bin/false
Regards,
Uwe
Am 05.08.2014 22:04, schrieb Erica Riello:
Kiran,
that's exactly what I've done, but I still get the same error
messages.
Erica
2014-08-05 15:54 GMT-03:00 Kiran Thyagaraja <[email protected]
<mailto:[email protected]>>:
You should be ideally specifying a directory under /var/spool
e.g /var/spool/slurm and then change its permissions so that the
SlurmUser can write to it.
Kiran
On 08/05/2014 01:33 PM, Mike Johnson wrote:
Re: [slurm-dev]
Hi Erica
What's the value of SlurmUser in the slurm.conf?
You'll need to make sure the MailProg exists and is
executable by the SlurmUser too
Mike
On 5 August 2014 18:20, Erica Riello
<[email protected] <mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>> wrote:
Hi all,
I've been trying to run the slurm controller daemon,
but I get an
error I have no idea how to solve:
> sudo slurmctld -Dcvvvv
slurmctld: pidfile not locked, assuming no running daemon
slurmctld: error: Configured MailProg is invalid
slurmctld: error: Job accounting information
gathered, but not stored
slurmctld: fatal: Incorrect permissions on state save
loc: /var/spool
Munge daemon is running and /var/spool permissions are:
> ls -ld /var/spool
drwxr-xr-x 10 root root 4096 Ago 5 13:31 /var/spool
Does anyone knows how should /var/spool permissions
be set?
Thanks in advance.
-- Erica
--
===============
Erica Riello
Aluna Engenharia de Computação PUC-Rio
--
===============
Erica Riello
Aluna Engenharia de Computação PUC-Rio
