[slurm-users] Does latest slurm version still work on CentOS 6?

[Prentice Bisbal]

Also, make sure no 3rd party packages installed software that installs 
files in the systemd directories. The legacy spec file still checks for 
systemd files to be present:

if [ -d /usr/lib/systemd/system ]; then
    install -D -m644 etc/slurmctld.service 
$RPM_BUILD_ROOT/usr/lib/systemd/system/slurmctld.service
    install -D -m644 etc/slurmd.service 
$RPM_BUILD_ROOT/usr/lib/systemd/system/slurmd.service
    install -D -m644 etc/slurmdbd.service 
$RPM_BUILD_ROOT/usr/lib/systemd/system/slurmdbd.service
    %if %{slurm_with cray}
       install -D -m644 contribs/cray/slurmsmwd/slurmsmwd.service 
%{buildroot}/%{_unitdir}/slurmsmwd.service
    %endif
elif [ -d /etc/init.d ]; then
    install -D -m755 etc/init.d.slurm $RPM_BUILD_ROOT/etc/init.d/slurm
    install -D -m755 etc/init.d.slurmdbd $RPM_BUILD_ROOT/etc/init.d/slurmdbd
    mkdir -p "$RPM_BUILD_ROOT/usr/sbin"
    ln -s ../../etc/init.d/slurm $RPM_BUILD_ROOT/usr/sbin/rcslurm
    ln -s ../../etc/init.d/slurmdbd $RPM_BUILD_ROOT/usr/sbin/rcslurmdbd
fi

At my site, we are using a software package that supports both RHEL6 and 
RHEL7 using the same RPM, so they install the startup files for both 
systemd and SysV Init at the same time. This will result in 
/usr/lib/systemd/system existing on RHEL6 systems. Yes, this a bad 
practice that could be fixed with a conditional somewhere in the RPM 
post-install script, or just maintaining two different RPMS for each 
RHEL major version #, but it's a commercial packag, and this is what I'm 
stuck with.  As a result, when I build Slurm using the legacy spec file, 
it will still build the systemd unit files and not the SysV  init 
scripts. If you're in the same situation, the easiest way to fix it is 
to edit that conditional and comment out some of the lines, like this:

#if [ -d /usr/lib/systemd/system ]; then
#   install -D -m644 etc/slurmctld.service 
$RPM_BUILD_ROOT/usr/lib/systemd/system/slurmctld.service
#   install -D -m644 etc/slurmd.service 
$RPM_BUILD_ROOT/usr/lib/systemd/system/slurmd.service
#   install -D -m644 etc/slurmdbd.service 
$RPM_BUILD_ROOT/usr/lib/systemd/system/slurmdbd.service
#   %if %{slurm_with cray}
#      install -D -m644 contribs/cray/slurmsmwd/slurmsmwd.service 
%{buildroot}/%{_unitdir}/slurmsmwd.service
#   %endif
#elif [ -d /etc/init.d ]; then
    install -D -m755 etc/init.d.slurm $RPM_BUILD_ROOT/etc/init.d/slurm
    install -D -m755 etc/init.d.slurmdbd $RPM_BUILD_ROOT/etc/init.d/slurmdbd
    mkdir -p "$RPM_BUILD_ROOT/usr/sbin"
    ln -s ../../etc/init.d/slurm $RPM_BUILD_ROOT/usr/sbin/rcslurm
    ln -s ../../etc/init.d/slurmdbd $RPM_BUILD_ROOT/usr/sbin/rcslurmdbd
#fi

It would be great is schedmd could modify the legacy spec file to have a 
--without-systemd option for this somewhat rare case, or check for the 
existence of the systemd RPMs instead of just the existence of systemd 
unit files for this conditional.


On 2/11/19 11:34 AM, Michael Robbert wrote:
> Cola,
>
> You need to use the legacy spec file from the contribs directory:
>
> ls -l slurm-18.08.5/contribs/slurm.spec-legacy
> -rw-r--r-- 1 mrobbert mrobbert 38574 Jan 30 11:59
> slurm-18.08.5/contribs/slurm.spec-legacy
>
> Mike
>
> On 2/11/19 9:26 AM, Colas Rivière wrote:
>> Hello,
>>
>> I'm trying to update slurm to the latest stable version 18.08.5-2. Our
>> cluster uses CentOS 6.8 and updating it tricky because of Lustre support.
>> According to https://slurm.schedmd.com/platforms.html, CentOS 6 is
>> still supported.
>>
>> However, `yum-builddep slurm-18.08.5-2/slurm.spec` fails, because
>> `slurm.spec` contains `BuildRequires: systemd` which is not available
>> on CentOS 6 (at least on my 6.8 apparently).
>>
>> Does slurm 18.08 work on mode recent versions of CentOS 6? Am I
>> missing something, or is the platforms page out of date?
>>
>> Thanks,
>> Cola
>>