[OOD-users] Testing OnDemand - 2 questions

[Kevin Manalo]

Jeremy,

Yes, it is valid – it has created ‘issues’ with software because even home directories are of the form /home/bob at jhu.edu
Sometimes, symlinking has worked but other times we needed to make reports to software maintainers.

We usually tell users to

ssh login.hpc.jhu.edu -l bob at jhu.edu

or

ssh “johndoe at jhu.edu”@login.hpc.jhu.edu<mailto:“johndoe at jhu.edu”@login.hpc.jhu.edu>

but your version is valid also.

The one nice benefit of the username is of course email matching and supporting multiple institutions without too much encoding.

Also, thanks for the /var/log/nginx/ location, I haven’t looked there before.

-Kevin

From: OOD-users <ood-users-bounces at lists.osc.edu> on behalf of "Nicklas, Jeremy" <jnicklas at osc.edu>
Reply-To: User support maiing list for Open OnDemand <ood-users at lists.osc.edu>
Date: Tuesday, August 8, 2017 at 3:17 PM
To: User support maiing list for Open OnDemand <ood-users at lists.osc.edu>
Subject: Re: [OOD-users] Testing OnDemand - 2 questions

Hi Kevin,

1. Usernames have AT signs?!?! I learned something new today. Out of curiosity, how do users SSH? Is this valid:

ssh bob at jhu.edu@login.hpc.jhu.edu

Fortunately the above scenario won't affect the Shell App because we leave off the username portion when forking off the ssh command to the login nodes for the clusters.

I can look into fixing the regular expression issue you are having for the next release of OOD, until then I am guessing you managed to hand-patch the offending bit of code.

2. To confirm that it is reading the cluster config file correctly I typically go to Active Jobs and first check that you are presented with a dropdown of the configured clusters in the top right. After confirming I see all the configured clusters in the dropdown, I then change the dropdown on the left from "Your Jobs" to "All Jobs" and confirm I see the jobs on the clusters.

If something fails then I go to my log files and see what errors are being reported (from the OnDemand node):

/var/log/nginx/<username>/error.log

2b. If you modify the cluster config files, you will need to restart your personal web server to see the changes reflected in the apps. You do this by going to the Dashboard and selecting Help => Restart Web Server.

Jeremy Nicklas
Web and Interface App Engineer
Ohio Supercomputer Center (OSC)<https://osc.edu/>
A member of the Ohio Technology Consortium<https://oh-tech.org/>
1224 Kinnear Road, Columbus, Ohio 43212
Office: (614) 292-6739<tel:+16142926739> • Mobile: (614) 316-6428<tel:+16143166428> • Fax: (614) 292-7168<tel:+16142927168>
jnicklas at osc.edu<mailto:jnicklas at osc.edu>

Learn more about OSC at https://osc.edu<https://osc.edu/>
________________________________
From: OOD-users [ood-users-bounces+jnicklas=osc.edu at lists.osc.edu] on behalf of Kevin Manalo [kmanalo at jhu.edu]
Sent: Tuesday, August 08, 2017 2:13 PM
To: OOD-users
Subject: [OOD-users] Testing OnDemand - 2 questions
Hi WIAG/OOD Team!

We are starting testing OnDemand here at Johns Hopkins, and I see some quirks I’m trying to resolve

1.
When I launch the dashboard I see

Error -- invalid user name syntax: myusername at jhu.edu<mailto:myusername at jhu.edu>
Run 'nginx_stage --help' to see a full list of available command line options.

Is there a way you can improve the regex to avoid this issue (we have usernames with AT signs)
https://github.com/OSC/nginx_stage/blob/5ba5c2c4e1466c29ffe70f445ce35052ebaaf41a/lib/nginx_stage/generator_helpers.rb


2.
Is there a way for a logger for me to confirm that various apps under the OOD umbrella are actually reading my cluster configuration YML file? I don’t know the obvious way of doing this but for sysadmin verification this would be really helpful to double check.  We are using SLURM here.

Thanks,
Kevin

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