[GitHub] [beam] kennknowles opened a new issue, #18294: Faling to re-raise exceptions

[GitBox <gi...@apache.org>]

kennknowles opened a new issue, #18294:
URL: https://github.com/apache/beam/issues/18294

   In runners common.py `reraise_augmented` fails to re-raise exceptions in some case.
   
   `raise type(exn), args, sys.exc_info()[2]`
   
   The above code assumes that the Exception can be reconstructed from its arguments but this is not always true for custom exception classes. (e.g. `RPCError` in https://github.com/GoogleCloudPlatform/google-cloud-datastore/blob/master/python/googledatastore/connection.py#L226
   
   This re-raising could first attempt to re-create the exception and if that does not fail raise otherwise raise the original exception as is.
   
   (cc: [~robertwb])
   
   Imported from Jira [BEAM-1901](https://issues.apache.org/jira/browse/BEAM-1901). Original Jira may contain additional context.
   Reported by: altay.


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