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

[Dockendorf, Trey]

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
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