[OOD-users] Jupyter App -- satisfy password request && database connection error

[E.M. Dragowsky]

Hi, Trey --

The slurm configuration has been in place and tested quite a bit. And I
have been launching Jupyter App jobs to my cluster today -- while fumbling
through the jupter-specific configuration.

I reached the point where the notebook launched on the compute node, and i
was able to click through to "connect" to the notebook -- but I didn't
satisfy the password required. Since then, I am faced with the slurmdbd
messages included in the original post.

Thanks

On Fri, Sep 28, 2018 at 4:40 PM, Dockendorf, Trey <tdockendorf at osc.edu>
wrote:

> The sbatch errors appear like issues with sbatch accessing both slurmctld
> and slurmdbd daemons.  I’d recommend checking firewalls on the host running
> slurmctld and slurmdbd.  Also verify that simple commands like squeue work
> from the OnDemand server.  Your slurm.conf on the OnDemand server should
> match the rest of your cluster.
>
>
>
> - Trey
>
>
>
> --
>
> Trey Dockendorf
>
> HPC Systems Engineer
>
> Ohio Supercomputer Center
>
>
>
> *From: *OOD-users <ood-users-bounces+tdockendorf=osc.edu at lists.osc.edu>
> on behalf of "E.M. Dragowsky" <dragowsky at case.edu>
> *Reply-To: *User support mailing list for Open OnDemand <
> ood-users at lists.osc.edu>
> *Date: *Friday, September 28, 2018 at 4:25 PM
> *To: *User support mailing list for Open OnDemand <ood-users at lists.osc.edu
> >
> *Subject: *[OOD-users] Jupyter App -- satisfy password request &&
> database connection error
>
>
>
> Hi, everyone --
>
> My Jupyter development app is now configured and functional, such that the
> app launches and connects to the compute node I have provisioned with
> TurboVNC and websockify (still testing).
>
> Being after 4pm local time, I have two problems that are preventing the
> actual connection.
>
> --  After launching a session, a "Connect to Jupyter" button is
> presented.  After clicking through, I don't know how to satisfy the
> password request in the browser window. Post connection documentation
> doesn't make enough sense to me.
>
> --  Perhaps related to my failed password attempts, I'm now also
> experiencing a database connection error preventing any further evaluation:
>
>
> sbatch: error: slurm_persist_conn_open_without_init: failed to open persistant connection to smaster:6819: Connection refused
>
> sbatch: error: slurmdbd: Sending PersistInit msg: Connection refused
>
> sbatch: error: slurm_persist_conn_open_without_init: failed to open persistant connection to smaster:6819: Connection refused
>
> sbatch: error: slurmdbd: Sending PersistInit msg: Connection refused
>
> sbatch: error: slurmdbd: DBD_GET_CLUSTERS failure: Connection refused
>
> sbatch: error: Problem talking to database
>
> sbatch: error: There is a problem talking to the database: Connection refused.  Only local cluster communication is available, remove --cluster from your command line or contact your admin to resolve the problem.
>
>
>
> smaster is the name of my cluster, and we're using slurm.
>
>
> Thanks in advance
>
> ~ Emily
>
>
> --
>
> E.M. Dragowsky, Ph.D.
>
> Research Computing -- UTech
>
> Case Western Reserve University
>
> (216) 368-0082
>
> _______________________________________________
> OOD-users mailing list
> OOD-users at lists.osc.edu
> https://lists.osu.edu/mailman/listinfo/ood-users
>
>


-- 
E.M. Dragowsky, Ph.D.
Research Computing -- UTech
Case Western Reserve University
(216) 368-0082
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