huge amount of Web Renderer based on Cef in TaskManager for Nprinting and Qlik Sense

[Sebastian_Linser]

The Task Managers list a high number of Web Rendered based on Cef tasks. 

After starting the first print job in Qlik Sense or a connection towards Qlik Sense it is possible to get even more of them. Four of them will stay until the next service restart.

The additional processes are only used to render new reports, equally to Qlikview starting a Qlikview Desktop instance triggered from Nprinting to render the Qlikview reports.

To see the full detail you can either:

1. Call a command line with the following parameters to output the result into a text file (process.text in our example).
   

   WMIC /OUTPUT:C:\Process.txt path win32_process get Caption,Processid,Commandline​

2. Or use the Task Manager to get a graphical overview.
   1. Open the Task Manager
   2. Change to the details tab
      
      
      
      
   3. Right-click in the label row and choose select columns
      
      
      
      
   4. Scroll down and select Command Line
      
      
      
      
   5. After this, you will be able to see the command line as listed below
      
      

For Nprinting those four standard tasks are:

C:\Program Files\NPrintingServer\NPrinting\Engine\lib\rwr\x64\reporting_web_renderer.exe

with the following command arguments:

• --type= utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle= 1252,4457016349572877178,3575950894086257519,131072 --enable-features=CastMediaRoute
• --type=gpu-process --field-trial-handle= 1252,4457016349572877178,3575950894086257519,131072 --enable-features=CastMediaRouteProvider --no-sandbox --disable-d3d11 --log-
• --type=crashpad-handler/prefetch:7 --no-rate-limit --max-db-size=20 --max-db-age=5 --monitor-self-annotation=ptype=crashpad-handler "--database= C:\Users\NPService\AppD
• -grpc-addr= 127.0.0.1:51051

For Qlik Sense the standard tasks are:

C:\Program Files\Qlik\Sense\Printing\lib\rwr\x64\reporting_web_renderer.exe

with the following arguments :

•  -l=error -grpc-addr="127.0.0.1:52051" --no-proxy-server -log-file-path="C:\ProgramData\Qlik\Sense\Log\Printing\Trace\WIN-26KCKPK7CUS_System_Printing_rwr.txt"
• --type=crashpad-handler /prefetch:7 --no-rate-limit --max-db-size=20 --max-db-age=5 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Administrator\AppData\Local\CEF\User Data\Crashpad" "--metrics-dir=C:\Users\Administrator\AppData\Local\CEF\User Data" --annotation=platform=win64 --annotation=product=reporting-web-renderer --annotation=version=1.0.0 --initial-client-data=0x38c,0x390,0x394,0x368,0x398,0x7ffc43eba160,0x7ffc43eba170,0x7ffc43eba180
• --type=gpu-process --field-trial-handle=1620,16558599898342786946,1820740170035316084,131072 --enable-features=CastMediaRouteProvider --disable-features=CalculateNativeWinOcclusion --no-sandbox --disable-d3d11 --log-file="C:\Program Files\Qlik\Sense\Printing\lib\rwr\x64\debug.log" --log-severity=disable --lang=en-US --gpu-preferences=MAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAQAAAAAAAAAAAAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAA= --use-gl=swiftshader-webgl --log-file="C:\Program Files\Qlik\Sense\Printing\lib\rwr\x64\debug.log" --mojo-platform-channel-handle=1640 /prefetch:2
• --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1620,16558599898342786946,1820740170035316084,131072 --enable-features=CastMediaRouteProvider --disable-features=CalculateNativeWinOcclusion --lang=en-US --service-sandbox-type=network --no-sandbox --ignore-certificate-errors --ignore-certificate-errors --log-file="C:\Program Files\Qlik\Sense\Printing\lib\rwr\x64\debug.log" --log-severity=disable --lang=en-US --log-file="C:\Program Files\Qlik\Sense\Printing\lib\rwr\x64\debug.log" --mojo-platform-channel-handle=2176 /prefetch:8

Environment

• Qlik Sense Enterprise on Windows 
• Qlik NPrinting 

Resolution

For limiting the number of tasks, you need to follow this article NPrinting how to manage max number of QV.exe (QlikView) and QS reporting_web_renderer.exe (Qlik Sens... keep in mind that this number is only for additional triggered processes besides the 4 shown above.