[GitHub] bhavinthaker commented on issue #7335: Exception in threads kills entire process

[gi...@git.apache.org]

bhavinthaker commented on issue #7335: Exception in threads kills entire process
URL: https://github.com/apache/incubator-mxnet/issues/7335#issuecomment-320317571
 
 
   **Comments from Mu Li:**
   
   Hi Cliff,
    
   Thank you for your summary. We thought to fix it before. One solution is using C++11 execption_ptr (http://en.cppreference.com/w/cpp/error/exception_ptr) to pass all exceptions to the main thread, so that we can catch all of them at the python frontend. 
    
   This feature is not on our team roadmap now, it will be great if you can work on it.
    
   Thanks
   Mu
   
   **Comments from Junyuan Xie:**
   
   One problem with this is that once an operator fails inside engine it will never be complete and all subsequent operations will hang.
    
   It?s unclear how one should recover from this.
    
   **Comments from Junru Shao:**
   
   Will it be a good try to
   print out related operands to some log file
   pass the exception to main thread
   kill the operators depending on the operator that throws the exception?
    
   Thanks,
   Junru
 
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