[slurm-users] [EXT] slurmctld error

Tue Apr 6 10:17:41 UTC 2021

sacctmgr list cluster

   Cluster     ControlHost  ControlPort   RPC     Share GrpJobs       GrpTRES GrpSubmit MaxJobs       MaxTRES MaxSubmit     MaxWall                  QOS   Def QOS

---------- --------------- ------------ ----- --------- ------- ------------- --------- ------- ------------- --------- ----------- -------------------- ---------

       tuc                            0     0         1                                                                                           normal

scontrol show config | grep ClusterName

ClusterName             = tuc

From: slurm-users <slurm-users-bounces at lists.schedmd.com> On Behalf Of Sean Crosby
Sent: Tuesday, April 6, 2021 12:47 PM
To: Slurm User Community List <slurm-users at lists.schedmd.com>
Subject: Re: [slurm-users] [EXT] slurmctld error

It looks like your attachment of sinfo -R didn't come through

It also looks like your dbd isn't set up correctly

Can you also show the output of

sacctmgr list cluster

and

scontrol show config | grep ClusterName

Sean

--
Sean Crosby | Senior DevOpsHPC Engineer and HPC Team Lead
Research Computing Services | Business Services
The University of Melbourne, Victoria 3010 Australia

On Tue, 6 Apr 2021 at 19:18, Ioannis Botsis <ibotsis at isc.tuc.gr <mailto:ibotsis at isc.tuc.gr> > wrote:

UoM notice: External email. Be cautious of links, attachments, or impersonation attempts

  _____  

Hi Sean,

I am trying to submit a simple job but freeze

srun -n44 -l /bin/hostname

srun: Required node not available (down, drained or reserved)

srun: job 15 queued and waiting for resources

^Csrun: Job allocation 15 has been revoked

srun: Force Terminated job 15

daemons are active and running on server and all nodes 

nodes definition in slurm.conf is …

DefMemPerNode=3934

NodeName=wn0[01-44] CPUs=2 RealMemory=3934 Sockets=2 CoresPerSocket=2 State=UNKNOWN

PartitionName=TUC Nodes=ALL Default=YES MaxTime=INFINITE State=UP

tail -10 /var/log/slurmdbd.log

[2021-04-06T12:09:16.481] error: We should have gotten a new id: Table 'slurm_acct_db.tuc_job_table' doesn't exist

[2021-04-06T12:09:16.481] error: _add_registered_cluster: trying to register a cluster (tuc) with no remote port

[2021-04-06T12:09:16.482] error: We should have gotten a new id: Table 'slurm_acct_db.tuc_job_table' doesn't exist

[2021-04-06T12:09:16.482] error: It looks like the storage has gone away trying to reconnect

[2021-04-06T12:09:16.483] error: We should have gotten a new id: Table 'slurm_acct_db.tuc_job_table' doesn't exist

[2021-04-06T12:09:16.483] error: _add_registered_cluster: trying to register a cluster (tuc) with no remote port

[2021-04-06T12:09:16.484] error: We should have gotten a new id: Table 'slurm_acct_db.tuc_job_table' doesn't exist

[2021-04-06T12:09:16.484] error: It looks like the storage has gone away trying to reconnect

[2021-04-06T12:09:16.484] error: We should have gotten a new id: Table 'slurm_acct_db.tuc_job_table' doesn't exist

[2021-04-06T12:09:16.485] error: _add_registered_cluster: trying to register a cluster (tuc) with no remote port

tail -10 /var/log/slurmctld.log

[2021-04-06T12:09:35.701] debug:  backfill: no jobs to backfill

[2021-04-06T12:09:42.001] debug:  slurmdbd: PERSIST_RC is -1 from DBD_FLUSH_JOBS(1408): (null)

[2021-04-06T12:10:00.042] debug:  slurmdbd: PERSIST_RC is -1 from DBD_FLUSH_JOBS(1408): (null)

[2021-04-06T12:10:05.701] debug:  backfill: beginning

[2021-04-06T12:10:05.701] debug:  backfill: no jobs to backfill

[2021-04-06T12:10:05.989] debug:  sched: Running job scheduler

[2021-04-06T12:10:19.001] debug:  slurmdbd: PERSIST_RC is -1 from DBD_FLUSH_JOBS(1408): (null)

[2021-04-06T12:10:35.702] debug:  backfill: beginning

[2021-04-06T12:10:35.702] debug:  backfill: no jobs to backfill

[2021-04-06T12:10:37.001] debug:  slurmdbd: PERSIST_RC is -1 from DBD_FLUSH_JOBS(1408): (null)

Attached sinfo -R  

Any hint?

jb

From: slurm-users <slurm-users-bounces at lists.schedmd.com <mailto:slurm-users-bounces at lists.schedmd.com> > On Behalf Of Sean Crosby
Sent: Tuesday, April 6, 2021 7:54 AM
To: Slurm User Community List <slurm-users at lists.schedmd.com <mailto:slurm-users at lists.schedmd.com> >
Subject: Re: [slurm-users] [EXT] slurmctld error

The other thing I notice for my slurmdbd.conf is that I have

DbdAddr=localhost
DbdHost=localhost

You can try changing your slurmdbd.conf to set those 2 values as well to see if that gets slurmdbd to listen on port 6819

Sean

--
Sean Crosby | Senior DevOpsHPC Engineer and HPC Team Lead
Research Computing Services | Business Services
The University of Melbourne, Victoria 3010 Australia

On Tue, 6 Apr 2021 at 14:31, Sean Crosby < <mailto:scrosby at unimelb.edu.au> scrosby at unimelb.edu.au> wrote:

Interesting. It looks like slurmdbd is not opening the 6819 port

What does

ss -lntp | grep 6819

show? Is something else using that port?

You can also stop the slurmdbd service and run it in debug mode using

slurmdbd -D -vvv

Sean

--
Sean Crosby | Senior DevOpsHPC Engineer and HPC Team Lead
Research Computing Services | Business Services
The University of Melbourne, Victoria 3010 Australia

On Tue, 6 Apr 2021 at 14:02, < <mailto:ibotsis at isc.tuc.gr> ibotsis at isc.tuc.gr> wrote:

UoM notice: External email. Be cautious of links, attachments, or impersonation attempts

  _____  

Hi Sean

ss -lntp | grep $(pidof slurmdbd)     return nothing……

systemctl status slurmdbd.service

● slurmdbd.service - Slurm DBD accounting daemon

     Loaded: loaded (/lib/systemd/system/slurmdbd.service; enabled; vendor preset: enabled)

     Active: active (running) since Mon 2021-04-05 13:52:35 EEST; 16h ago

       Docs: man:slurmdbd(8)

    Process: 1453365 ExecStart=/usr/sbin/slurmdbd $SLURMDBD_OPTIONS (code=exited, status=0/SUCCESS)

   Main PID: 1453375 (slurmdbd)

      Tasks: 1

     Memory: 5.0M

     CGroup: /system.slice/slurmdbd.service

             └─1453375 /usr/sbin/slurmdbd

Apr 05 13:52:35  <http://se01.grid.tuc.gr> se01.grid.tuc.gr systemd[1]: Starting Slurm DBD accounting daemon...

Apr 05 13:52:35  <http://se01.grid.tuc.gr> se01.grid.tuc.gr systemd[1]: slurmdbd.service: Can't open PID file /run/slurmdbd.pid (yet?) after start: Operation not permitted

Apr 05 13:52:35  <http://se01.grid.tuc.gr> se01.grid.tuc.gr systemd[1]: Started Slurm DBD accounting daemon.

File /run/slurmdbd.pid exist and has  pidof slurmdbd   value….

From: slurm-users < <mailto:slurm-users-bounces at lists.schedmd.com> slurm-users-bounces at lists.schedmd.com> On Behalf Of Sean Crosby
Sent: Tuesday, April 6, 2021 12:49 AM
To: Slurm User Community List < <mailto:slurm-users at lists.schedmd.com> slurm-users at lists.schedmd.com>
Subject: Re: [slurm-users] [EXT] slurmctld error

What's the output of

ss -lntp | grep $(pidof slurmdbd)

on your dbd host?

Sean

--
Sean Crosby | Senior DevOpsHPC Engineer and HPC Team Lead
Research Computing Services | Business Services
The University of Melbourne, Victoria 3010 Australia

On Tue, 6 Apr 2021 at 05:00, < <mailto:ibotsis at isc.tuc.gr> ibotsis at isc.tuc.gr> wrote:

UoM notice: External email. Be cautious of links, attachments, or impersonation attempts

  _____  

Hi Sean,

10.0.0.100 is the dbd and ctld host with name se01. Firewall is inactive……

nc -nz 10.0.0.100 6819 || echo Connection not working

give me back …..  Connection not working

jb

From: slurm-users < <mailto:slurm-users-bounces at lists.schedmd.com> slurm-users-bounces at lists.schedmd.com> On Behalf Of Sean Crosby
Sent: Monday, April 5, 2021 2:52 PM
To: Slurm User Community List < <mailto:slurm-users at lists.schedmd.com> slurm-users at lists.schedmd.com>
Subject: Re: [slurm-users] [EXT] slurmctld error

The error shows

slurmctld: debug2: Error connecting slurm stream socket at  <http://10.0.0.100:6819> 10.0.0.100:6819: Connection refused

slurmctld: error: slurm_persist_conn_open_without_init: failed to open persistent connection to se01:6819: Connection refused

Is 10.0.0.100 the IP address of the host running slurmdbd?

If so, check the iptables firewall running on that host, and make sure the ctld server can access port 6819 on the dbd host.

You can check this by running the following from the ctld host (requires the package nmap-ncat installed)

nc -nz 10.0.0.100 6819 || echo Connection not working

This will try connecting to port 6819 on the host 10.0.0.100, and output nothing if the connection works, and would output Connection not working otherwise

I would also test this on the DBD server itself

--
Sean Crosby | Senior DevOpsHPC Engineer and HPC Team Lead
Research Computing Services | Business Services
The University of Melbourne, Victoria 3010 Australia

On Mon, 5 Apr 2021 at 21:00, Ioannis Botsis < <mailto:ibotsis at isc.tuc.gr> ibotsis at isc.tuc.gr> wrote:

UoM notice: External email. Be cautious of links, attachments, or impersonation attempts

  _____  

Hi Sean,

Thank you for your prompt response,  I made the changes you suggested, slurmctld refuse running……. find attached new slurmctld -Dvvvv

jb

From: slurm-users < <mailto:slurm-users-bounces at lists.schedmd.com> slurm-users-bounces at lists.schedmd.com> On Behalf Of Sean Crosby
Sent: Monday, April 5, 2021 11:46 AM
To: Slurm User Community List < <mailto:slurm-users at lists.schedmd.com> slurm-users at lists.schedmd.com>
Subject: Re: [slurm-users] [EXT] slurmctld error

Hi Jb,

You have set AccountingStoragePort to 3306 in slurm.conf, which is the MySQL port running on the DBD host.

AccountingStoragePort is the port for the Slurmdbd service, and not for MySQL.

Change AccountingStoragePort to 6819 and it should fix your issues.

I also think you should comment out the lines 

AccountingStorageUser=slurm
AccountingStoragePass=/run/munge/munge.socket.2

You shouldn't need those lines

Sean

--
Sean Crosby | Senior DevOpsHPC Engineer and HPC Team Lead
Research Computing Services | Business Services
The University of Melbourne, Victoria 3010 Australia

On Mon, 5 Apr 2021 at 18:03, Ioannis Botsis < <mailto:ibotsis at isc.tuc.gr> ibotsis at isc.tuc.gr> wrote:

UoM notice: External email. Be cautious of links, attachments, or impersonation attempts

  _____  

Hello everyone,

I installed the slurm 19.05.5 from Ubuntu repo,  for the first time in a cluster with 44  identical nodes but I have problem with slurmctld.service

When I try to activate slurmctd I get the following message…

fatal: You are running with a database but for some reason we have no TRES from it.  This should only happen if the database is down and you don't have any state files

*	Ubuntu 20.04.2 runs on the server and nodes in the exact same version.
*	munge 0.5.13 installed from Ubuntu repo running on server and nodes.
*	mysql  Ver 8.0.23-0ubuntu0.20.04.1 for Linux on x86_64 ((Ubuntu))  installed from ubuntu repo running on server.

slurm.conf is the same on all nodes and on server.

slurmd.service is active and running on all nodes without problem.

mysql.service is active and running on server.

slurmdbd.service is active and running on server (slurm_acct_db created).

Find attached slurm.conf  <http://slurmdbd.com> slurmdbd.com  and detailed output of slurmctld -Dvvvv  command.

Any hint?

Thanks in advance

jb

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