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Anonymous's avatar
Anonymous
Not applicable
5 years ago
Solved

Python optimizer / PowerApps / Automate

Hi all,   My use case is as follows: given user input (a single monetary value), I would like to optimize a set of given items.   My initial thoughts are: 1. Build a PowerApps app + connect in p...
Need Help
Anonymous's avatar
Anonymous
Not applicable
5 years ago

It fails at this command: func new --name HttpExample --template "HTTP trigger" --authlevel "anonymous"

Anonymous's avatar
Anonymous
Not applicable
5 years ago

HI Anonymous,

So you mean you can't finish the create function app steps to redirect to the detail develop menu?
If this is a case, have you checked you have corresponded permissions to do operate with azure functions apps?
In addition, you can contact azure admin/support with detailed error messages and these request id to get further support.
Regards,

Xiaoxin Sheng

  • Anonymous's avatar
    Anonymous
    Not applicable
    5 years ago

    Hi Anonymous !

     

    Amazing, that was the issue -- thanks for your help again.

    If you dont mind, I am running into an issue again. The function is now locally working, but when I try to deploy onto Azure, I get the following error traceback:

    Exception while executing function: Functions.HttpExample Result: Failure
Exception: PulpSolverError: Pulp: Error while executing /home/site/wwwroot/.python_packages/lib/site-packages/pulp/apis/../solverdir/cbc/linux/64/cbc
Stack: File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/dispatcher.py", line 355, in _handle__invocation_request
call_result = await self._loop.run_in_executor(
File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/dispatcher.py", line 542, in __run_sync_func
return func(**params)
File "/home/site/wwwroot/HttpExample/__init__.py", line 22, in main
return func.HttpResponse(f"{optimize(name)}")
File "/home/site/wwwroot/HttpExample/__init__.py", line 100, in optimize
model.solve(solver)
File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/pulp.py", line 1737, in solve
status = solver.actualSolve(self, **kwargs)
File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/apis/coin_api.py", line 101, in actualSolve
return self.solve_CBC(lp, **kwargs)
File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/apis/coin_api.py", line 159, in solve_CBC
raise PulpSolverError("Pulp: Error while executing "+self.path)

     

    Based on this file: https://github.com/coin-or/pulp/blob/master/pulp/apis/coin_api.py

    It looks like it fails here on line 158/9:

            if not os.path.exists(tmpSol):
            raise PulpSolverError("Pulp: Error while executing "+self.path)

    maybe when deploying, it doesnt have / cant find the os path?

     

    Couldn't find the same issue on the web, except this: https://github.com/Azure/azure-functions-python-worker/issues/465 which suggests using Docker -- 

    but is there an alternative to Docker? how should  I proceed?

     

    thanks for your help

    • Anonymous's avatar
      Anonymous
      Not applicable
      5 years ago

      ah, please ignore -- i fiex with parameter keepFiles=True

      I now have this issue lol

       

      Exception while executing function: Functions.HttpExample Result: Failure
Exception: OSError: [Errno 30] Read-only file system: 'Budget_model-pulp.mps'
Stack:   File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/dispatcher.py", line 355, in _handle__invocation_request
    call_result = await self._loop.run_in_executor(
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/dispatcher.py", line 542, in __run_sync_func
    return func(**params)
  File "/home/site/wwwroot/HttpExample/__init__.py", line 22, in main
    return func.HttpResponse(f"{optimize(name)}")
  File "/home/site/wwwroot/HttpExample/__init__.py", line 100, in optimize
    model.solve(solver)
  File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/pulp.py", line 1737, in solve
    status = solver.actualSolve(self, **kwargs)
  File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/apis/coin_api.py", line 101, in actualSolve
    return self.solve_CBC(lp, **kwargs)
  File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/apis/coin_api.py", line 114, in solve_CBC
    vs, variablesNames, constraintsNames, objectiveName = lp.writeMPS(tmpMps, rename = 1)
  File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/pulp.py", line 1611, in writeMPS
    return mpslp.writeMPS(self, filename, mpsSense = mpsSense, rename = rename, mip = mip)
  File "/home/site/wwwroot/.python_packages/lib/site-packages/pulp/mps_lp.py", line 223, in writeMPS
    with open(filename, "w") as f:

      i understand i cant write to the azure fn directory -- but im wondering how its possible to work around this if its in a library im calling -- maybe create a blob storage for this "filename" -- will have to keep digging into it

      • Anonymous's avatar
        Anonymous
        Not applicable
        5 years ago

        i'm trying to play around wtih some parameters when calling the function that is in the pulp library, no luck yet - will keep you posted