It appears that the inspector service can be too busy to service requests, causing the mistral _introspect workflow to fail.
A retry directive on this action should be enough to handle this situation.
keystoneauth1.exceptions.connection.ConnectFailure: Unable to establish connection to https://192.168.24.2:13050/v1/introspection/8e845c37-6d89-49c8-99a4-5a287cfe938d: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
: keystoneauth1.exceptions.connection.ConnectFailure: Unable to establish connection to https://192.168.24.2:13050/v1/introspection/8e845c37-6d89-49c8-99a4-5a287cfe938d: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
2019-07-01 15:45:34.479 8 WARNING mistral.executors.default_executor [req-c713b016-66e9-4f6b-8b44-454a7da50d63 b7e89eebf2004c338b2fa27f2c8e5c0a 255ba499e4bf4f2896b34de488035ab2 - default default] The action raised an exception [action_ex_id=9ce38d03-7d0a-4ca3-bccf-14bc7e674e92, action_cls='<class 'mistral.actions.action_factory.BaremetalIntrospectionAction'>', attributes='{'client_method_name': 'wait_for_finish'}', params='{'uuids': ['8e845c37-6d89-49c8-99a4-5a287cfe938d'], 'max_retries': 120, 'retry_interval': 10}']
BaremetalIntrospectionAction.wait_for_finish failed: Unable to establish connection to https://192.168.24.2:13050/v1/introspection/8e845c37-6d89-49c8-99a4-5a287cfe938d: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',)): mistral.exceptions.ActionException: BaremetalIntrospectionAction.wait_for_finish failed: Unable to establish connection to https://192.168.24.2:13050/v1/introspection/8e845c37-6d89-49c8-99a4-5a287cfe938d: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
Fix proposed to branch: master /review. opendev. org/671380
Review: https:/