slurmctld needs to start after slurmdbd

[Raymond Wan]

The slurmctld daemon fails to start upon booting if the slurmdbd package is also installed. It seems that the order that services should come up are:

1. mysql
2. slurmdbd
3. slurmctld
4. slurmd

If slurmdbd does not start up before slurmctld, then slurmctld will fail with an error such as:

Feb 03 17:10:27 mycomputer slurmctld[1682]: slurmctld: error: mysql_real_connect failed: 2002 Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
Feb 03 17:10:27 mycomputer slurmctld[1682]: slurmctld: fatal: You haven't inited this storage yet.
Feb 03 17:10:27 mycomputer systemd[1]: slurmctld.service: Main process exited, code=exited, status=1/FAILURE
Feb 03 17:10:27 mycomputer systemd[1]: slurmctld.service: Failed with result 'exit-code'.

A fix was suggested in AskUbuntu, which you can see here: https://askubuntu.com/questions/1502374/problem-with-start-up-of-the-slurm-controller-daemon/1502381

Note that this bug report is probably a duplicate of https://bugs.launchpad.net/ubuntu/+source/slurm-llnl/+bug/1512715, which was filed 9 years ago.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: slurmctld 23.02.3-2ubuntu1 [modified: lib/systemd/system/slurmctld.service]
ProcVersionSignature: Ubuntu 6.5.0-15.15-generic 6.5.3
Uname: Linux 6.5.0-15-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 5 11:51:10 2024
InstallationDate: Installed on 2022-12-05 (427 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
SourcePackage: slurm-wlm
UpgradeStatus: Upgraded to mantic on 2023-11-05 (92 days ago)