[OOD-users] evaluating ood and noVNC

Franz, Eric efranz at osc.edu
Thu Nov 8 16:02:56 EST 2018


> Our compute nodes have turbovnc-2.2-20180927.x86_64 and 
> python-websockify-0.6.0-2.el7.noarch installed and are similarly 
> provisioned with RAM/cores/os.

We are using websockify 0.8.0+. We do have a websockify rpm if you want to use that: https://yum.osc.edu/ondemand/1.3/compute/el7/x86_64/. Also we are using an older version of turbovnc (2.0.91, 2.1.1, and now 2.1.90).

I doubt that the version differences would introduce the problem you are seeing though.


Eric Franz, Senior Web & Interface App Engineer
Ohio Supercomputer Center
An Ohio Technology Consortium (OH-TECH) Member
1224 Kinnear Road
Columbus, OH 43212
email: efranz at osc.edu

On 11/2/18, 4:59 PM, "OOD-users on behalf of John-Paul Robinson via OOD-users" <ood-users-bounces at lists.osc.edu on behalf of ood-users at lists.osc.edu> wrote:

    Hi Folks,
    We've been evaluating ood and now have a beta instance deployed on our 
    cluster.    Over all, the application works great.  It is exactly what 
    we want to see as a modernization of the  HPC user experience.
    Our tests with noVNC are seeing a lot of promise but we've noticed some 
    rendering/responsiveness issues with this interface.  In particular, 
    sometimes we see a lack of updates to text typed in a terminal on the 
    VNC desktop and no updates visible until we click on a desktop outside 
    the terminal.  We are also seeing issues with Matlab rendering updates 
    (matlab has been problematic in the past even with traditional vnc 
    clients, so i'm just putting this one out there).  It seems to me that 
    the problems are due to a refresh-rate/detection issue between the X 
    server and the VNC server agent.  If I connect with a traditional VNC 
    client to the hpc desktop, I see the same update issues as i'm seeing on 
    the noVNC client side.  We are testing with xfce.
    Thanks for all the work on this great product,
    OOD-users mailing list
    OOD-users at lists.osc.edu

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