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<p>One more step closer to the goal it seems - if run:</p>
<p><br>
</p>
<p>export XAUTHORITY=/var/run/slim/slim.auth<br>
DISPLAY=:0 xhost +</p>
<p><br>
</p>
<p>as root, I can get the launcher to start, and not die with an
X-related error (cumbersome workaround, but I guess I can find a
better way later). <br>
</p>
<p><br>
</p>
<p>[paraview@vbl-sim ~] $ cat /etc/httpd/paraview-mapping/proxy.txt
<br>
be12802a-137f-11e6-b12c-002590e6af35 vbl-sim.eli-beams.eu:9003<br>
</p>
<p>[paraview@vbl-sim ~] $ ps aux | grep pvpython<br>
paraview 1792 1.2 0.1 1393740 144956 pts/1 S+ 13:42 0:02
/usr/local/lib/paraview-5.0/pvpython
/usr/local/lib/paraview-5.0/site-packages/vtk/web/launcher.py
/etc/httpd/paraview-launcher.config -d<br>
paraview 1887 1.6 0.1 1519164 237520 pts/1 Sl+ 13:43 0:02
/usr/local/lib/paraview-5.0/pvpython -dr
/usr/local/lib/paraview-5.0/site-packages/paraview/web/pv_web_visualizer.py
--port 9003 --data-dir /var/paraview/data -f --authKey
3ZXwyWwTz7aPjT9p</p>
<p><br>
</p>
<p>Now when I try to open an app from the browser, it still doesn't
work (waits forever to load some part, etc.), and I see thist in
the paraview log:</p>
<p><br>
</p>
<p>[strazce@vbl-sim ~] $ cat
/var/log/paraview-viz-logs/be12802a-137f-11e6-b12c-002590e6af35.txt
<br>
2016-05-06 13:43:27+0200 [-] Log opened.<br>
2016-05-06 13:43:27+0200 [-] Site starting on 9003<br>
2016-05-06 13:43:27+0200 [-] Starting factory
<twisted.web.server.Site instance at 0x7fd34014f3b0><br>
2016-05-06 13:43:27+0200 [-]
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<br>
2016-05-06 13:43:27+0200 [-]
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<br>
<br>
</p>
<p><br>
</p>
and a lot of lines which contain just the repeating plus signs. <br>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 05/05/16 16:23, Sebastien Jourdain
wrote:<br>
</div>
<blockquote
cite="mid:CABObKxefXtqmpADYSvv1un3Q-i7Ri5kFgqYDdMfV3Dgr=12cow@mail.gmail.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<div dir="ltr">You were on the right track with DISPLAY=:0 but I'm
wondering if you setup a "virtual" monitor or if your "paraview"
user is auto logged in a X session or if it stuck at the "login"
panel?
<div><br>
</div>
<div>You can find some information about the virtual screen
here: (Search for "Screen")</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://kitware.github.io/paraviewweb/docs/guides/graphics_on_ec2_g2.html"
target="_blank">http://kitware.github.io/paraviewweb/docs/guides/graphics_on_ec2_g2.html</a><br>
</div>
<div><br>
</div>
<div>And for the autologin if it is needed. (Note on EC2 the
user start X hence no need to login...)</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="https://github.com/Kitware/paraviewweb/blob/master/tools/ansible/roles/paraview/tasks/Ubuntu.yml"
target="_blank">https://github.com/Kitware/paraviewweb/blob/master/tools/ansible/roles/paraview/tasks/Ubuntu.yml</a><br>
</div>
<div><br>
</div>
<div>Seb</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, May 5, 2016 at 6:58 AM, Jiří
Vyskočil <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jiri.vyskocil@fjfi.cvut.cz" target="_blank">jiri.vyskocil@fjfi.cvut.cz</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
<br>
I'm trying to set up a Paraview Web server on a Fedora 23
machine. The serves is not connected to a monitor or a
keyboard (I only have access through ssh), but it has a
nvidia GPU which I want to use for paraview.<br>
<br>
<br>
I have installed xdm to run the X server, and verified that
it is in fact running with the correct nvidia drivers (by
checking the Xorg.0.log file). The problem is I don't know
how to run the paraview webserver on the X display when
there's no one physically logged in - I can only get to the
server via ssh. When I log in, and switch to the paraview
user, the DISPLAY and XAUTHORITY variables are empty.<br>
<br>
<br>
The webserver itself is running (apache + the python
launcher), but when I try to open any of the example
applications, I get an error like this:<br>
<br>
<br>
$ ./launch-paraview.sh<br>
2016-05-05 14:54:17,528:<a class="moz-txt-link-freetext" href="INFO:twisted:Site">INFO:twisted:Site</a> starting on 9000<br>
2016-05-05 14:54:17,528:<a class="moz-txt-link-freetext" href="INFO:twisted:Starting">INFO:twisted:Starting</a> factory
<twisted.web.server.Site instance at 0x7fe20da6a998><br>
2016-05-05 14:55:09,655:<a class="moz-txt-link-freetext" href="INFO:twisted">INFO:twisted</a>:"127.0.0.1" - -
[05/May/2016:12:55:09 +0000] "POST /paraview/ HTTP/1.1" 503
78 "<a moz-do-not-send="true"
href="https://vbl-sim.eli-beams.eu/apps/Visualizer/"
rel="noreferrer" target="_blank">https://vbl-sim.eli-beams.eu/apps/Visualizer/</a>"
"Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:45.0)
Gecko/20100101 Firefox/45.0"<br>
<br>
<br>
$ cat 965318f2-12c0-11e6-a3cb-002590e6af35.txt<br>
2016-05-05 14:55:06+0200 [-] Log opened.<br>
ERROR: In
/home/strazce/hax/ParaView-v5.0.0-source/VTK/Rendering/OpenGL/vtkXOpenGLRenderWindow.cxx,
line 333<br>
vtkXOpenGLRenderWindow (0x3f00be0): bad X server connection.
DISPLAY=<br>
<br>
<br>
Specifying DISPLAY=:0 when running the launcher gives this
error:<br>
<br>
$ cat e73921bc-12c0-11e6-b002-002590e6af35.txt<br>
2016-05-05 14:57:22+0200 [-] Log opened.<br>
No protocol specified<br>
No protocol specified<br>
No protocol specified<br>
ERROR: In
/home/strazce/hax/ParaView-v5.0.0-source/VTK/Rendering/OpenGL/vtkXOpenGLRenderWindow.cxx,
line 333<br>
vtkXOpenGLRenderWindow (0x4127c10): bad X server connection.
DISPLAY=:0. Aborting.<br>
<br>
<br>
<br>
Thanks for any hints,<br>
<br>
Jiri<br>
<br>
<br>
<br>
<br>
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</blockquote>
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</blockquote>
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