Dear,
I have deployed ParaViewWeb. Everything seems to work fine, but I am not able
to visualize outputs, such as rendering the output fields such as T, V, etc.
I built and tried ParaViewWeb 4.1, 4.3 and 4.4 with offscreen OSMesa, and I
have received the same issues. Currently I use Apache 2.4.16 as a front end
running on port 8080, python launcher and ParaViewWeb 4.4 with offscreen
OSMesa. The following is my launcher and Apache configuration files:
launcher.json
{
"configuration": { "host" : "localhost",
"port" : 9000,
"endpoint": "paraview",
"content":
"/home/user/ParaViewWeb/ParaView/build/www",
"proxy_file":
"/home/user/ParaViewWeb/pv-mapping-file/mapping.txt", "sessionURL" :
"ws://testexample.com:8080/proxy?sessionId=${id}",
"timeout" : 25,
"log_dir" : "/home/user/ParaViewWeb/pvwLogs",
"upload_dir" : "/home/user/ParaViewWeb/upload", "fields" : ["file", "host",
"port", "updir"]
},
"resources" : [ { "host" : "localhost", "port_range" : [9001, 9010] } ],
"properties" : { "build_dir" : "/home/user/ParaViewWeb/ParaView/build",
"python_exec" : "/home/user/ParaViewWeb/ParaView/build/bin/pvpython",
"python_path": "/home/user/ParaViewWeb/ParaView/build/lib/site-packages",
"WWW" : "/home/user/ParaViewWeb/ParaView/build/www", "dataDir":
"/home/user/ParaViewWeb/data", "load_file": "/home/user/ParaViewWeb/upload",
"source_dir": "/.../src" },
"apps": { "pipeline": { "cmd": [ "${python_exec}", "-dr",
"${python_path}/paraview/web/pv_web_visualizer.py", "--port", "${port}",
"--data-dir", "${dataDir}" ], "ready_line" : "Starting factory" },
"visualizer": { "cmd": [ "${python_exec}", "-dr",
"${python_path}/paraview/web/pv_web_visualizer.py", "--port",
"${port}", "--data-dir", "${dataDir}" ], "ready_line" : "Starting
factory" }, "loader": { "cmd": [ "${python_exec}",
"-dr", "${python_path}/paraview/web/pv_web_file_loader.py",
"--port", "${port}", "--data-dir", "${dataDir}", "-f", "--authKey", "${secret}"
], "ready_line" : "Starting factory" }, "data_prober": {
"cmd": [ "${python_exec}", "-dr",
"${python_path}/paraview/web/pv_web_data_prober.py", "--port",
"${port}", "--data-dir", "${dataDir}", "-f", "--authKey", "${secret}" ],
"ready_line" : "Starting factory" } }}
httpd-vhosts.conf
<VirtualHost *:8080> ServerName testexample.com ServerAdmin
[email protected] DocumentRoot
"/home/user/ParaViewWeb/ParaView/build/www" ErrorLog
"/home/user/ParaViewWeb/apacheLogs/pv-error_log" CustomLog
"/home/user/ParaViewWeb/apacheLogs/pv-access_log" common
ProxyPass /paraview http://localhost:9000/paraview
# Turn on the rewrite engine RewriteEngine On
# This is the path the mapping file Jetty creates RewriteMap
session-to-port txt:/home/user/ParaViewWeb/pv-mapping-file/mapping.txt
# This is the rewrite condition. Look for anything with a sessionId= in the
query part of the URL and capture the value to use below. RewriteCond
%{QUERY_STRING} ^sessionId=(.*)$ [NC]
# This does the rewrite using the mapping file and the sessionId
RewriteRule ^/proxy.*$ ws://${session-to-port:%1}/ws [P]
<Directory "/home/user/ParaViewWeb/ParaView/build/www"> Options
Indexes FollowSymLinks Order allow,deny Allow from all
AllowOverride None Require all granted </Directory></VirtualHost>
Issue 1: Loading ASCII stl file
When I try to load my ASCII stl file on the ParaviewWeb, I receive the
following error message in my log file. However, desktop ParaView application
loads the file fine.
ERROR: In /home/user/ParaViewWeb/ParaView/src/VTK/IO/Geometry/vtkSTLReader.cxx,
line 461vtkSTLReader (0x5d89b50): STLReader: error while reading file
/home/user/ParaViewWeb/data/Mitchell_Lee_Administration_ReckordArmory_.stl at
line 14: unable to read reading point.
ERROR: In
/home/user/ParaViewWeb/ParaView/src/VTK/Common/ExecutionModel/vtkExecutive.cxx,
line 784vtkPVCompositeDataPipeline (0x5d84f70): Algorithm
vtkFileSeriesReader(0x5d881b0) returned failure for request: vtkInformation
(0x5d97f30) Debug: Off Modified Time: 225417 Reference Count: 1 Registered
Events: (none) Request: REQUEST_DATA FROM_OUTPUT_PORT: 0
ALGORITHM_AFTER_FORWARD: 1 FORWARD_DIRECTION: 0
Issue 2:
If I do the following selections on the ParaViewWeb, I always receive
src/VTK/Common/Core/vtkDataArrayTemplate.h:191: T
vtkDataArrayTemplate<T>::GetValue(vtkIdType) [with T = float; vtkIdType = long
long int]: Assertion `id >= 0 && id < this->Size' failed message in the log
file and cause the web socket connection closed.
2015-09-23 17:33:52-0400 [-] Log opened.2015-09-23 17:33:53-0400 [-] Site
starting on 90092015-09-23 17:33:53-0400 [-] Starting factory
<twisted.web.server.Site instance at 0x7fb6f2e55830>2015-09-23 17:33:53-0400
[HTTPChannel,0,127.0.0.1] Client has reconnected, cancelling reaper2015-09-23
17:33:53-0400 [HTTPChannel,0,127.0.0.1] on_connect: connection count =
1pvpython:
/home/user/ParaViewWeb/ParaView/src/VTK/Common/Core/vtkDataArrayTemplate.h:191:
T vtkDataArrayTemplate<T>::GetValue(vtkIdType) [with T = float; vtkIdType =
long long int]: Assertion `id >= 0 && id < this->Size' failed.
----------------------------------------------------------------------------------------------------------------------------------------------------------------
WebSocket connection to
'ws://XXXXXXXXXXX:8080/proxy?sessionId=0c562ad6-623f-11e5-9b44-00155dd73e0d'
failed: Error during WebSocket handshake: Unexpected response code: 503
I checked HTTP traffic, it has the following message. I assume the connection
is closed because of the above error.
Issue 3: Slow ParaViewWeb
My ParaViewWeb is very slow. Even I change the rendering mode to WebGL, It is
still very slow. The Ubuntu 14.04 Sever specifications are the following:
- 8 Cores - 8 GB RAM - 2.3 Ghz processors
Please let me know if I have setup anything incorrectly. Could anybody help me
with the above three issues that I am experiencing now. Thank you very much!
Kai L.
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