When an action fails it raises an exception containing a message like this:
u"The action raised an exception [action_ex_id=69df1efe-e078-4381-a4c1-44d37613b22f, action_cls='<class 'abc.WorkflowInputAction'>', attributes='{u'ACTION_AVAILABILITY': [u'disabled_if_scheduled']}', params='{u'operation_parameters': {u'extVirtualLinks': [{u'resourceId': u'configuration not needed', u'extCps': [{u'cpdId': u'configuration not needed', u'numDynamicAddresses': 0, u'addresses': []}], u'vimId': u'073c6eb0-26f0-4e86-b83f-26cd0d35c26e', u'extVirtualLinkId': u'ac4e5090-0be4-46f8-9a71-4aa807f1035d'}], u'grantlessMode': True, u'softwareImages': [], u'flavourId': u'bts_flavor', u'zones': [{u'resourceId': u'55dc8481-a169-4cd8-bb0a-dfd3963d0a57', u'id': u'd319f63d-c7d8-4af5-bc8f-759fbf349990', u'vimId': u'073c6eb0-26f0-4e86-b83f-26cd0d35c26e'}], u'vims': [{u'interfaceInfo': {u'endpoint': u'https://10.75.239.100:13000/v3'}, u'vimInfoType': u'OPENSTACK_V3_INFO', u'accessInfo': {u'username': u'admin', u'userDomain': u'default', u'region': u'regionOne', u'project': u'admin', u'projectDomain': u'default', u'password': u'2fI_p2FO3onNtEiB'}, u'id': u'073c6eb0-26f0-4e86-b83f-26cd0d35c26e'}], u'instantiationLevelId': u'base1',
.... <many more lines>
The issue with this format is that it doesn't include the root cause in the beginning. So if a client decides to truncate this long message the root cause may not be included at all. Since it's more important info than, e.g. action class attributes, it should go before them.
Fix proposed to branch: stable/train
Review: https:/