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serverwkhtmltopdf
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QWY SOFTWARE PRIVATE LIMITED

Hi,


Wkhtmltopdf failed (error code: -11). Memory limit too low or maximum 

file number of subprocess reached. Message : QPaintDevice: Cannot 

destroy paint device that is being painted.


Wkhtmltopdf failed (error code: -11). Memory limit too low or maximum file number of subprocess reached. Message : b''


What is the solution for this ? Our current server configuration is


  • 16 GB RAM
  • 4 core CPU



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Omni Byte
Best Answer

Hello,

According to this link: https://github.com/wkhtmltopdf/wkhtmltopdf/issues/4957 , you can resolved this issue by increase  file and stack limits with command: "ulimit -n 10000".

Or if you have interest, you can check out our product: Local PDF Report Generation and Printing, which offer the ability to generate and print from local PC, and reduce your sever load at the same time.

Best regard.


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BRAHIM El-houcine
Best Answer

I had the same problem, I have solved it for some time by increasing the number of workers in my configuration then I faced the same issue with huge datasets. 

For this, I have solved the issue by adding queue_job module from OCA.

I hope this helps!

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