<div dir="ltr"><div>Yes, you have both daemons, installed with the slurm rpm.The slurmd (all nodes) communicates with slurmctld (runs in the main master node and, optionally, in a backup node).</div><div><br></div><div>You do not need to run slurmd as the slurm user. Use `systemctld enable slurmctld` (and slurmd) followed by `systemclt start slurmctld`. Use restart instead of start if you change the configuration only if `sudo scontrol reconfigure` asks for it.<br></div><div><br></div><div>If you run as root `slurmctld -Dvvvv` and `slurmd -Dvvvv` you'll see debug outputs to see further problems with configuration. The slurmd needs slurmctld running or will output "error: Unable to register: Unable to contact slurm controller (connect failure)"</div><div><br></div><div>You should find the services here:</div><div>-rw-r--r-- 1 root root 339 may 30 20:18 /usr/lib/systemd/system/slurmctld.service<br>-rw-r--r-- 1 root root 342 may 30 20:18 /usr/lib/systemd/system/slurmdbd.service<br>-rw-r--r-- 1 root root 398 may 30 20:18 /usr/lib/systemd/system/slurmd.service</div><div><br></div><div>Feel free to ask for more information,</div><div>Best regards<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El mar., 2 jun. 2020 a las 11:12, Ferran Planas Padros (<<a href="mailto:ferran.padros@su.se">ferran.padros@su.se</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div id="gmail-m_-269440492691839835divtagdefaultwrapper" dir="ltr" style="font-size:12pt;color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols">
<p><br>
</p>
<div dir="ltr">
<div id="gmail-m_-269440492691839835x_divtagdefaultwrapper" dir="ltr" style="font-size:12pt;color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols">
<p>Hi Ole,</p>
<p><br>
</p>
<p>Thanks for your answer and your time. I'd appreciate if you, or someone else, could make a final look at my case.</p>
<p>After your suggestions and comments, I have re-done the whole installation for Munge and Slurm. I uninstalled and remoced all previous rpms and restarted from scratch. Munge works with no problem, however it does not happen the same with slurm (for which
I have used the instructions given in the link you attached)</p>
<p><br>
</p>
<p>- If I run /usr/bin/slurmd -D vvvvv as root user, I get the verbose until the line '<span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px">slurmd: debug2: No acct_gather.conf file (/etc/slurm/acct_gather.conf)'
<span style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt">where the verbose stops. After I do Ctrl+C, I get </span></span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px"></span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><br>
</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">slurmd: all threads complete</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">slurmd: Consumable Resources (CR) Node Selection plugin shutting down ...</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">slurmd: Munge cryptographic signature plugin unloaded</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">slurmd: Slurmd shutdown completing</span></p>
<br>
<p></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt">- After that, if I run 'systemctl start slurmd' and 'systemctl status slurmd', also as root user, I get:</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px"></span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures;color:rgb(52,188,38)"><b>●</b></span><span style="font-variant-ligatures:no-common-ligatures"> slurmd.service - Slurm node daemon</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><span>
</span>Loaded: loaded (/etc/systemd/system/slurmd.service; enabled; vendor preset: disabled)</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><span>
</span>Active: </span><span style="font-variant-ligatures:no-common-ligatures;color:rgb(52,188,38)"><b>active (running)</b></span><span style="font-variant-ligatures:no-common-ligatures"> since Tue 2020-06-02 16:53:51 CEST; 33s
ago</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><span>
</span>Process: 2750 ExecStart=/usr/sbin/slurmd -d /usr/sbin/slurmstepd $SLURMD_OPTIONS (code=exited, status=0/SUCCESS)</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><span> </span>Main PID: 2752 (slurmd)</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><span>
</span>CGroup: /system.slice/slurmd.service</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures"><span>
</span>└─2752 /usr/sbin/slurmd -d /usr/sbin/slurmstepd</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;min-height:13px">
<span style="font-variant-ligatures:no-common-ligatures"></span><br>
</p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:53:51 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Starting Slurm node daemon...</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:53:51 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Can't open PID file /var/run/slurm/slurmd.pid (yet?) after start: No such file or directory</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:53:51 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Started Slurm node daemon.</span></p>
<br>
<p></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px">- <span style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Next, I kill the slurmd process, and I run, as slurm user, 'systemctl start slurm'.
Which does not work and returns the following in the journalctl -xe:</span></span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px"><span style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt"><br>
</span></span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px"></span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:56:01 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Starting LSB: slurm daemon management...</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">-- Subject: Unit slurm.service has begun start-up</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">-- Defined-By: systemd</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">-- Support: <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a></span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">--<span> </span></span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">-- Unit slurm.service has begun starting up.</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:56:01 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> slurm[2805]: starting slurmd: [<span>
</span>OK<span> </span>]</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:56:01 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Can't open PID file /var/run/slurmctld.pid (yet?) after start: No such file or directory</span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:56:37 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> polkitd[1316]:
<b>Unregistered Authentication Agent for unix-process:2792:334647 (system bus name :1.46, object path /org/freedesktop</b></span></p>
<p style="margin-right:0px;margin-left:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo">
<span style="font-variant-ligatures:no-common-ligatures">Jun 02 16:56:38 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> sudo[2790]: pam_unix(sudo:session): session closed for user slurm</span></p>
<br>
<p></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Something that I don't really understand because I have not installed slurmctld. The slurmctld.service file does not even exist.</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt"><br>
</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Any idea?</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt"><br>
</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Many thanks,</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Ferran</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px"><span style="font-size:12pt;font-family:Calibri,Helvetica,sans-serif"></span><br>
</span></p>
<p><span style="font-variant-ligatures:no-common-ligatures;font-family:Menlo;font-size:11px"><br>
</span></p>
<p></p>
</div>
<hr style="display:inline-block;width:98%">
<div id="gmail-m_-269440492691839835x_divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> slurm-users <<a href="mailto:slurm-users-bounces@lists.schedmd.com" target="_blank">slurm-users-bounces@lists.schedmd.com</a>> on behalf of Ole Holm Nielsen <<a href="mailto:Ole.H.Nielsen@fysik.dtu.dk" target="_blank">Ole.H.Nielsen@fysik.dtu.dk</a>><br>
<b>Sent:</b> Tuesday, June 2, 2020 12:03:27 PM<br>
<b>To:</b> Slurm User Community List<br>
<b>Subject:</b> Re: [slurm-users] Problem with permisions. CentOS 7.8</font>
<div> </div>
</div>
</div>
<font size="2"><span style="font-size:10pt">
<div>Hi Ferran,<br>
<br>
Please install Slurm software in the standard way, see<br>
<a href="https://wiki.fysik.dtu.dk/niflheim/Slurm_installation" id="gmail-m_-269440492691839835LPlnk10833" target="_blank">https://wiki.fysik.dtu.dk/niflheim/Slurm_installation</a><br>
<br>
It seems that you have some unusual way to manage your Linux systems. In <br>
Stockholm and Sweden there are many Slurm experts at the HPC centers which <br>
might be able to help you more directly.<br>
<br>
Best regards,<br>
Ole<br>
<br>
On 6/2/20 11:58 AM, Ferran Planas Padros wrote:<br>
> I did a fresh installation with the EPEL repo, and installing munge from <br>
> it and it worked. To have the slurm user for munge was definitely a <br>
> problem, but that is the set up we have on the CentOS 6. Now I've learnt <br>
> my lesson for future installations, thanks to everyone!<br>
> <br>
> <br>
> Now, I have a follow up question, if you don't mind. I am now trying to <br>
> run slurm, and it crashes:<br>
> <br>
> <br>
> [root@roos21 ~]# systemctl status slurm.service<br>
> <br>
> *●*slurm.service - LSB: slurm daemon management<br>
> <br>
> Loaded: loaded (/etc/rc.d/init.d/slurm; bad; vendor preset: disabled)<br>
> <br>
> Active: *failed*(Result: protocol) since Tue 2020-06-02 11:45:33 CEST; <br>
> 3min 33s ago<br>
> <br>
> Docs: man:systemd-sysv-generator(8)<br>
> <br>
> <br>
> Jun 02 11:45:33 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Starting LSB: slurm daemon <br>
> management...<br>
> <br>
> Jun 02 11:45:33 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> slurm[18223]: starting slurmd: [OK]<br>
> <br>
> Jun 02 11:45:33 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Can't open PID file <br>
> /var/run/slurmctld.pid (yet?) after start: No such file or directory<br>
> <br>
> Jun 02 11:45:33 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *Failed to start LSB: slurm <br>
> daemon management.*<br>
> <br>
> Jun 02 11:45:33 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *Unit slurm.service entered <br>
> failed state.*<br>
> <br>
> Jun 02 11:45:33 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *slurm.service failed.*<br>
> <br>
> <br>
> <br>
> The thing is that this is a computing node, not the master node, so <br>
> slurmctld is not installed. Why do I get this error?<br>
> <br>
> <br>
> Many thanks, and my apologies for this rather simple questions. I am a <br>
> newbie on this.<br>
> <br>
> <br>
> Best,<br>
> <br>
> Ferran<br>
> <br>
> --------------------------------------------------------------------------<br>
> *From:* slurm-users <<a href="mailto:slurm-users-bounces@lists.schedmd.com" target="_blank">slurm-users-bounces@lists.schedmd.com</a>> on behalf of <br>
> Renata Maria Dart <<a href="mailto:renata@slac.stanford.edu" target="_blank">renata@slac.stanford.edu</a>><br>
> *Sent:* Friday, May 29, 2020 6:33:58 PM<br>
> *To:* <a href="mailto:Ole.H.Nielsen@fysik.dtu.dk" target="_blank">Ole.H.Nielsen@fysik.dtu.dk</a>; Slurm User Community List<br>
> *Subject:* Re: [slurm-users] Problem with permisions. CentOS 7.8<br>
> Hi, don't know if this might be your problem but I ran into an issue<br>
> on centos 7.8 where /var/run/munge was not being created at boottime<br>
> because I didn't have the munge user in the local password file. I<br>
> have the munge user in AD and once the system is up I can start munge<br>
> successfully, but AD wasn't available early enough during boot for the<br>
> munge startup to see it. I added these lines to the munge systemctl<br>
> file:<br>
> <br>
> PermissionsStartOnly=true<br>
> ExecStartPre=-/usr/bin/mkdir -m 0755 -p /var/run/munge<br>
> ExecStartPre=-/usr/bin/chown -R munge:munge /var/run/munge<br>
> <br>
> and my system now starts munge up fine during a reboot.<br>
> <br>
> Renata<br>
> <br>
> On Fri, 29 May 2020, Ole Holm Nielsen wrote:<br>
> <br>
>> Hi Ferran,<br>
>><br>
>> When you have a CentOS 7 system with the EPEL repo enabled, and you have<br>
>> installed the munge RPM from EPEL, then things should be working correctly.<br>
>><br>
>> Since systemctl tells you that Munge service didn't start correctly, then it<br>
>> seems to me that you have a problem in the general configuration of your CentOS<br>
>> 7 system. You should check /var/log/messages and "journalctl -xe" for munge<br>
>> errors. It is really hard for other people to guess what may be wrong in your<br>
>> system.<br>
>><br>
>> My 2 cents worth: Maybe you could make a fresh CentOS 7.8 installation on a<br>
>> test system and install the Munge service (and nothing else) according to<br>
>> instructions in <a href="https://wiki.fysik.dtu.dk/niflheim/Slurm_installation" id="gmail-m_-269440492691839835LPlnk332420" target="_blank">
https://wiki.fysik.dtu.dk/niflheim/Slurm_installation</a>. This<br>
>> *really* has got to work!<br>
>><br>
>> /Ole<br>
>><br>
>><br>
>> On 29-05-2020 10:23, Ferran Planas Padros wrote:<br>
>>> Hello everyone,<br>
>>><br>
>>><br>
>>> Here it comes everything I've done.<br>
>>><br>
>>><br>
>>> - About Ole's answer:<br>
>>><br>
>>> Yes, we have slurm as the user to control munge. Following your comment, I<br>
>>> have changed the ownership of the munge files and tried to start munge as<br>
>>> munge user. However, it also failed.<br>
>>><br>
>>> Also, I first installed munge from a repository. I've seen your suggestion of<br>
>>> installing from EPEL. So I uninstalled and installed again. Same result<br>
>>><br>
>>> - About SELinux: It is disables<br>
>>><br>
>>> - The output of ps -ef | grep munge is:<br>
>>><br>
>>><br>
>>> root534051530 10:18 pts/000:00:00 grep --color=auto *munge*<br>
>>><br>
>>><br>
>>> - The outputs of munge -n is:<br>
>>><br>
>>><br>
>>> Failed to access "/var/run/munge/munge.socket.2": No such file or directory<br>
>>><br>
>>><br>
>>> - Same for unmunge<br>
>>><br>
>>><br>
>>> - Output for sudo systemctl status --full munge<br>
>>><br>
>>><br>
>>> *?*munge.service - MUNGE authentication service<br>
>>><br>
>>> Loaded: loaded (/usr/lib/systemd/system/munge.service; enabled; vendor preset:<br>
>>> disabled)<br>
>>><br>
>>> Active: *failed*(Result: exit-code) since Fri 2020-05-29 10:15:52 CEST; 4min<br>
>>> 18s ago<br>
>>><br>
>>> Docs: man:munged(8)<br>
>>><br>
>>> Process: 5333 ExecStart=/usr/sbin/munged *(code=exited, status=1/FAILURE)*<br>
>>><br>
>>><br>
>>> May 29 10:15:52 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: Starting MUNGE authentication<br>
>>> service...<br>
>>><br>
>>> May 29 10:15:52 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *munge.service: control process<br>
>>> exited, code=exited status=1*<br>
>>><br>
>>> May 29 10:15:52 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *Failed to start MUNGE<br>
>>> authentication service.*<br>
>>><br>
>>> May 29 10:15:52 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *Unit munge.service entered<br>
>>> failed state.*<br>
>>><br>
>>> May 29 10:15:52 <a href="http://roos21.organ.su.se" target="_blank">roos21.organ.su.se</a> systemd[1]: *munge.service failed.*<br>
>>><br>
>>><br>
>>> - Regarding NTP, I get this message:<br>
>>><br>
>>><br>
>>> Unable to talk to NTP daemon. Is it running?<br>
>>><br>
>>><br>
>>> It is the same message I get in the nodes that DO work. All nodes are sync in<br>
>>> time and date with the central node<br>
>>><br>
>>><br>
>>> ------------------------------------------------------------------------<br>
>>> *From:* slurm-users <<a href="mailto:slurm-users-bounces@lists.schedmd.com" target="_blank">slurm-users-bounces@lists.schedmd.com</a>> on behalf of Ole<br>
>>> Holm Nielsen <<a href="mailto:Ole.H.Nielsen@fysik.dtu.dk" target="_blank">Ole.H.Nielsen@fysik.dtu.dk</a>><br>
>>> *Sent:* Friday, May 29, 2020 9:56:10 AM<br>
>>> *To:* <a href="mailto:slurm-users@lists.schedmd.com" target="_blank">slurm-users@lists.schedmd.com</a><br>
>>> *Subject:* Re: [slurm-users] Problem with permisions. CentOS 7.8<br>
>>> On 29-05-2020 08:46, Sudeep Narayan Banerjee wrote:<br>
>>>> also check:<br>
>>>> a) whether NTP has been setup and communicating with master node<br>
>>>> b) iptables may be flushed (iptables -L)<br>
>>>> c) SeLinux to disabled, to check :<br>
>>>> getenforce<br>
>>>> vim /etc/sysconfig/selinux<br>
>>>> (change SELINUX=enforcing to SELINUX=disabled and save the file and reboot)<br>
>>><br>
>>> There is no reason to disable SELinux for running the Munge service.<br>
>>> It's a pretty bad idea to lower the security just for the sake of<br>
>>> convenience!<br>
>>><br>
>>> /Ole<br>
>>><br>
>>><br>
>>>> On Fri, May 29, 2020 at 12:08 PM Sudeep Narayan Banerjee<br>
>>>> <<a href="mailto:snbanerjee@iitgn.ac.in" target="_blank">snbanerjee@iitgn.ac.in</a> <<a href="mailto:snbanerjee@iitgn.ac.in" target="_blank">mailto:snbanerjee@iitgn.ac.in</a>>> wrote:<br>
>>>><br>
>>>> I have not checked on the CentOS7.8<br>
>>>> a) if /var/run/munge folder does not exist then please double check<br>
>>>> whether munge has been installed or not<br>
>>>> b) user root or sudo user to do<br>
>>>> ps -ef | grep munge<br>
>>>> kill -9 <PID> //where PID is the Process ID for munge (if the<br>
>>>> process is running at all); else<br>
>>>><br>
>>>> which munged<br>
>>>> /etc/init.d/munge start<br>
>>>><br>
>>>> please let me know the the output of:<br>
>>>><br>
>>>> |$ munge -n|<br>
>>>><br>
>>>> |$ munge -n | unmunge|<br>
>>>><br>
>>>> |$ sudo systemctl status --full munge<br>
>>>><br>
>>>> |<br>
>>>><br>
>>>> Thanks & Regards,<br>
>>>> Sudeep Narayan Banerjee<br>
>>>> System Analyst | Scientist B<br>
>>>> Indian Institute of Technology Gandhinagar<br>
>>>> Gujarat, INDIA<br>
>>>><br>
>>>><br>
>>>> On Fri, May 29, 2020 at 11:55 AM Bjørn-Helge Mevik<br>
>>>> <<a href="mailto:b.h.mevik@usit.uio.no" target="_blank">b.h.mevik@usit.uio.no</a> <<a href="mailto:b.h.mevik@usit.uio.no" target="_blank">mailto:b.h.mevik@usit.uio.no</a>>> wrote:<br>
>>>><br>
>>>> Ferran Planas Padros <<a href="mailto:ferran.padros@su.se" target="_blank">ferran.padros@su.se</a><br>
>>>> <<a href="mailto:ferran.padros@su.se" target="_blank">mailto:ferran.padros@su.se</a>>> writes:<br>
>>>><br>
>>>> > I run the command as slurm user, and the /var/log/munge<br>
>>>> folder does belong to slurm.<br>
>>>><br>
>>>> For security reasons, I strongly advise that you run munged as a<br>
>>>> separate user, which is unprivileged and not used for anything else.<br>
>>>><br>
>>>> -- Regards,<br>
>>>> Bjørn-Helge Mevik, dr. scient,<br>
>>>> Department for Research Computing, University of Oslo<br>
<br>
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