Have a way to retrieve the original error on defunct connection ?

[prevostc]

Suggestion

I noticed the _set_defunct method of the bolt protocol files completely hides the underlying error message:

• neo4j-python-driver/neo4j/io/_bolt4x0.py

  Line 367 in 2d55eae

  def _set_defunct(self, error=None):

In my case I get a OSError from IncomingMessage:

• Method passed here:

  neo4j-python-driver/neo4j/io/_bolt4x0.py

  Line 85 in 2d55eae

  self.inbox = Inbox(self.socket, on_error=self._set_defunct)

• Error triggered here:

  neo4j-python-driver/neo4j/io/_courier.py

  Line 63 in 2d55eae

  self.on_error(error)

When I get this "Failed to read from defunct connection" error, I don't really know what to do and have absolutely no way to retrieve the original error for hints.

[martin-neotech]

@prevostc Thanks for the suggestion, I will have a look at this, to improve error propagation for this case.

[martin-neotech]

#466

[martin-neotech]

@prevostc does the PR solve your issue with the error propagation info? I will do a patch release on Thursday where this is included.

[prevostc]

@martin-neotech thank you for your quick work and great communication. I'll try the branch with the fix and will let you know today.

[prevostc]

Sorry for the delay, I can confirm this fix for my particular issue

[martin-neotech]

great news, thanks for the feedback.

Cheers, Martin