[Paraview] LiveArticles example with paraview 4.4

Tue Oct 6 10:50:09 EDT 2015

Hi Livia,

The error seems related to the following issue:

http://localhost:9442/ws [HTTP/1.1 400 This server only speaks WebSocket
subprotocols wamp.2.json.batched, wamp.2.json 10ms]
Connection could not be established. embed.html:134:25

I'm not sure to understand why that could be, but I was wondering if you
could try to run the WebVisualizer to see if that works as it's the part
that get actively developed while the rest are just sample code base that's
meant to help the community to build their own code base.

Moreover, if you could share your launcher configuration, that could be
useful.

Thanks,

Seb

On Mon, Oct 5, 2015 at 10:47 AM, <livia.barazzetti at istb.unibe.ch> wrote:

> Hi,
> I am following the paraview web guide and testing the provided web
> application in version 4.4.0 .
> I modified the script in
>
> http://www.paraview.org/gitweb?p=ParaViewSuperbuild.git;a=blob_plain;f=Scripts/pvw-setup.py;hb=HEAD
>
> in order to download Paraview4.4 for linux 64 (I am running Ubuntu 15
> desktop in a virtual machine), change the ports . I am following the
> documentation in
> http://www.paraview.org/ParaView3/Doc/Nightly/www/js-doc/index.html# ,
> and for a start I am trying the Python launcher.
>
> Using the script bin/start.sh I am able to load the webpage at
> http://localhost:4400/apps/LiveArticles/ , but when I click to embedded
> visualization , I see that the "server" process is starting a vtk render
> window but without data . After a moment the visualization on the web page
> closes.
>
> Here are the relevant part of the logs :
>
> *In Firefox Developer console*:
>
> The character encoding of a framed document was not declared. The document
> may appear different if viewed without the document framing it. embed.html
> The character encoding of a framed document was not declared. The document
> may appear different if viewed without the document framing it. embed.html
> Use of getPreventDefault() is deprecated. Use defaultPrevented instead.
> jquery-1.8.3.min.js:2:0
> GET
> http://localhost:9442/ws [HTTP/1.1 400 This server only speaks WebSocket
> subprotocols wamp.2.json.batched, wamp.2.json 10ms]
> Connection could not be established. embed.html:134:25
> Firefox can't establish a connection to the server at
> ws://localhost:9442/ws.
>
>
> * In LauncherLog.log:*
>
> 2015-10-05 18:15:24,525:INFO:twisted:"127.0.0.1" - - [05/Oct/2015:16:15:24
> +0000] "GET /ext/core/jquery.hammer.min.js HTTP/1.1" 304 - "
> http://localhost:4400/apps/LiveArticles/embed.html?data=disk_out_ref.ex2"
> "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101
> Firefox/41.0"
> 2015-10-05 18:15:24,529:INFO:twisted:"127.0.0.1" - - [05/Oct/2015:16:15:24
> +0000] "GET /ext/core/vgl.min.js HTTP/1.1" 304 - "
> http://localhost:4400/apps/LiveArticles/embed.html?data=disk_out_ref.ex2"
> "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101
> Firefox/41.0"
> 2015-10-05 18:15:24,532:INFO:twisted:"127.0.0.1" - - [05/Oct/2015:16:15:24
> +0000] "GET /ext/jquery-ui/jquery-ui-1.10.0.css HTTP/1.1" 304 - "
> http://localhost:4400/apps/LiveArticles/embed.html?data=disk_out_ref.ex2"
> "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101
> Firefox/41.0"
> 2015-10-05 18:15:24,534:INFO:twisted:"127.0.0.1" - - [05/Oct/2015:16:15:24
> +0000] "GET /ext/jquery-ui/jquery-ui-1.10.0.min.js HTTP/1.1" 304 - "
> http://localhost:4400/apps/LiveArticles/embed.html?data=disk_out_ref.ex2"
> "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101
> Firefox/41.0"
> 2015-10-05 18:15:24,537:INFO:twisted:"127.0.0.1" - - [05/Oct/2015:16:15:24
> +0000] "GET /lib/core/vtkweb-all.min.js HTTP/1.1" 304 - "
> http://localhost:4400/apps/LiveArticles/embed.html?data=disk_out_ref.ex2"
> "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101
> Firefox/41.0"
> 2015-10-05 18:15:41,492:INFO:twisted:"127.0.0.1" - - [05/Oct/2015:16:15:41
> +0000] "POST /paraview HTTP/1.1" 200 194 "
> http://localhost:4400/apps/LiveArticles/embed.html?data=can.ex2"
> "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:41.0) Gecko/20100101
> Firefox/41.0"
>
>
>
>
> * in the process log: *2015-10-05 18:15:39+0200 [-] Log opened.
> 2015-10-05 18:15:41+0200 [-] Site starting on 9442
> 2015-10-05 18:15:41+0200 [-] Starting factory <twisted.web.server.Site
> instance at 0x4a0f488>
> 2015-10-05 18:15:41+0200 [-]
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 2015-10-05 18:15:41+0200 [-]
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> 2015-10-05 18:15:41+0200 [-]
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 2015-10-05 18:15:41+0200 [-]
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 2015-10-05 18:15:41+0200 [HTTPChannel,0,127.0.0.1] Client has reconnected,
> cancelling reaper
> 2015-10-05 18:15:41+0200 [HTTPChannel,0,127.0.0.1] on_connect: connection
> count = 1
> 2015-10-05 18:15:41+0200 [HTTPChannel,0,127.0.0.1] connection_lost:
> connection count = 0
> 2015-10-05 18:15:41+0200 [HTTPChannel,0,127.0.0.1] Starting timer, process
> will terminate in: 300sec
> 2015-10-05 18:20:41+0200 [twisted.web.server.Site] (TCP Port 9442 Closed)
> 2015-10-05 18:20:41+0200 [twisted.web.server.Site] Stopping factory
> <twisted.web.server.Site instance at 0x4a0f488>
> 2015-10-05 18:20:41+0200 [-] Main loop terminated.
>
> Interestingly I've seen that the process that is called by the
> PythonLauncher is
> /data/pvweb/ParaView-4.4.0-Qt4-Linux-64bit/lib/paraview-4.4/pvpython
> /data/pvweb/ParaView-4.4.0-Qt4-Linux-64bit/lib/paraview-4.4/site-packages//paraview/web/pv_web_file_loader.py
> --port 9442 --data-dir /data/pvweb/data -f
>
> I've already tried to modify the javascript in the embed.html code in
> order to "force"  the data file in the command that the server uses to
> launch the script, but the problem of the render window immediately closing
> remains.
> I don't think it's a problem of the configuration, because I am able to
> use the visualization app and load some data.
>
> Any suggestion about this problem? I don't know how to debug further to
> understand if the problem in on the javascript or python side
>
> Best regards
> Livia
>
>
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