[OOD-users] Testing OOD on OpenHPC 1.3.2 with CentOS 7.3 Cluster Head Node

[Nicklas, Jeremy]

Hi Dominic,

It seems your build environment differs from the per-user NGINX runtime environment. One thing to be made aware of is that the PUN process is launched from within a `sudo` call, which in turn wipes LD_LIBRARY_PATH (so it only relies on system libraries).

A couple of suggestions which we should probably document:

- re-build the web apps with `unset LD_LIBRARY_PATH`, so it better mimics the runtime environment (in fact you should make sure your ~/.profile, ~/.bash_profile, and ~/.bashrc aren't loading special libraries or binaries)
- or override the wrapper script used to launch each PUN (/opt/ood/nginx_stage/bin/ood_ruby) so that you export the necessary libraries in LD_LIBRARY_PATH

I'd suggest the former option so that you are using the CentOS system libraries. This allows you to keep up-to-date with CentOS security patches to these libraries.

Jeremy Nicklas
Web and Interface App Engineer
Ohio Supercomputer Center (OSC)
A member of the Ohio Technology Consortium
1224 Kinnear Road, Columbus, Ohio 43212
Office: (614) 292-6739 • Mobile: (614) 316-6428 • Fax: (614) 292-7168
jnicklas at osc.edu

Learn more about OSC at https://osc.edu

________________________________________
From: OOD-users [ood-users-bounces+jnicklas=osc.edu at lists.osc.edu] on behalf of Dominic Daninger [domd at nor-tech.com]
Sent: Thursday, October 05, 2017 4:12 PM
To: ood-users at lists.osc.edu
Subject: [OOD-users] Testing OOD on OpenHPC 1.3.2 with CentOS 7.3 Cluster       Head Node

I have to say that I am impressed with the nice job that your team has started. We have been looking for a GUI interface like this for a while and it looks like you have come close to what we had in mind.

I wanted to report that we discovered one bug so far related to the jobs app and I think it is the same thing that affects most other tasks except for the file manager. The lucky thing about the jobs app was that it gave us enough of an error message that we were able to apply a patch and fix the problem. When we attempt to run the jobs app we would get an error message as follows:

Exception: OodApp:SetupScriptFailed
Per user setup failed for script at /var/www/ood/sys/myjobs/./bin/setup-production for user nortech with output
LoadError: /lib64/libstdc++.so.6: version ‘CXXABI_1.3.9” not found (required by /var/www/ood/sys/myjobs/vendor/bundle/ruby/gems/therubyracer-0.12.3/lib/v8.rb:4:in ‘require’

I figured out that the CentOS environment variable LD_LIBRARY_PATH wasn’t being checked and the library being used was at the default location in CentOS of /usr/lib64/libstdc++.so.6. The libstdc++.so.6 was a symbolic link that pointed to libstdc++.so.6.0.19. This library doesn’t contain CXXABI_1.3.9. The environment variable LD_LIBRARY_PATH does point to a more current version of the library which is libstdc++.so.6.0.23 which does contain CXXABI_1.3.9. As a test I changed /usr/lib64/libstdc++.so.6 to be a symbolic like pointing at /opt/ohpc/pub/compiler/gcc/7.1.0/lib64/libstdc++.so.6 which is a symbolic link pointing at libstdc++.so.6.0.23. Once I did the dialog boxes for job creation, monitoring and many functions worked in our Firefox browser.

We will be testing starting and monitoring jobs with PBS Pro community version shortly and we will report our findings to you.

Is this something that can be fixed soon?

Thanks

Dominic Daninger | domd at nor-tech.com<mailto:domd at nor-tech.com>
Vice President of Engineering
Direct 952-229-2070 | Cell 612 251 3505 | Fax 952-229-2061
[NT logo.jpg]Burnsville, Minn.
People Friendly Technology with a Global Reach

-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 2481 bytes
Desc: image001.jpg
URL: <http://lists.osu.edu/pipermail/ood-users/attachments/20171005/6596d3e9/attachment-0001.jpg>