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<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">- Trey<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Trey Dockendorf<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">HPC Systems Engineer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Ohio Supercomputer Center</span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">OOD-users <ood-users-bounces+tdockendorf=osc.edu@lists.osc.edu> on behalf of "E.M. Dragowsky" <dragowsky@case.edu><br>
<b>Reply-To: </b>User support mailing list for Open OnDemand <ood-users@lists.osc.edu><br>
<b>Date: </b>Friday, September 28, 2018 at 4:25 PM<br>
<b>To: </b>User support mailing list for Open OnDemand <ood-users@lists.osc.edu><br>
<b>Subject: </b>[OOD-users] Jupyter App -- satisfy password request && database connection error<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Comic Sans MS"">Hi, everyone --<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Comic Sans MS"">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).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Comic Sans MS"">Being after 4pm local time, I have two problems that are preventing the actual connection.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Comic Sans MS"">-- 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.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Comic Sans MS"">-- Perhaps related to my failed password attempts, I'm now also experiencing a database connection error preventing any further evaluation:<br>
<o:p></o:p></span></p>
<pre>sbatch: error: slurm_persist_conn_open_without_init: failed to open persistant connection to smaster:6819: Connection refused<o:p></o:p></pre>
<pre>sbatch: error: slurmdbd: Sending PersistInit msg: Connection refused<o:p></o:p></pre>
<pre>sbatch: error: slurm_persist_conn_open_without_init: failed to open persistant connection to smaster:6819: Connection refused<o:p></o:p></pre>
<pre>sbatch: error: slurmdbd: Sending PersistInit msg: Connection refused<o:p></o:p></pre>
<pre>sbatch: error: slurmdbd: DBD_GET_CLUSTERS failure: Connection refused<o:p></o:p></pre>
<pre>sbatch: error: Problem talking to database<o:p></o:p></pre>
<pre>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.<o:p></o:p></pre>
<p class="MsoNormal"><span style="font-family:"Comic Sans MS""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Comic Sans MS"">smaster is the name of my cluster, and we're using slurm.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Comic Sans MS""><br>
Thanks in advance<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Comic Sans MS"">~ Emily<br clear="all">
<o:p></o:p></span></p>
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<p class="MsoNormal"><br>
-- <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Comic Sans MS"">E.M. Dragowsky, Ph.D.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Comic Sans MS"">Research Computing -- UTech</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Comic Sans MS"">Case Western Reserve University</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Comic Sans MS"">(216) 368-0082</span><o:p></o:p></p>
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