congress

  1. Bug #1620868
  2. Comment #7

Comment 7 for bug 1620868

Revision history for this message
Eric K (ekcs) wrote :

Thanks for such a detailed investigation, Aimee!

As someone mentioned over ML, Oslo messaging appends the traceback to e.args[0] of the remote exception on RPC call.
https://github.com/openstack/oslo.messaging/blob/5690156d9b73e39547dbc3d27b12b41321bb6500/oslo_messaging/_drivers/common.py#L207
https://github.com/openstack/oslo.messaging/blob/5690156d9b73e39547dbc3d27b12b41321bb6500/oslo_messaging/_drivers/common.py#L242

In Python2, the e.message field is left untouched by oslo messaging, so taking that avoids the traceback. In Python3 however, that field does not exist.

So as far as I can figure, the only Python2+3 way to avoid the traceback is to "undo" what oslo messaging does to e.args[0]

I'm working on a patch.