olso.service 0.6.0 - cinder-volume cannot start on Windows

[Victor Laza]

When using Windows and cinder-volume the service cannot start with latest oslo.service (0.6.0)

2015-08-04 16:38:21.430 2504 ERROR cinder Traceback (most recent call last):
2015-08-04 16:38:21.430 2504 ERROR cinder File "<string>", line 1, in <module>
2015-08-04 16:38:21.430 2504 ERROR cinder File "C:\Python27\lib\site-packages\cinder\cmd\volume.py", line 81, in main
2015-08-04 16:38:21.430 2504 ERROR cinder launcher.wait()
2015-08-04 16:38:21.430 2504 ERROR cinder File "C:\Python27\lib\site-packages\cinder\service.py", line 470, in wait
2015-08-04 16:38:21.430 2504 ERROR cinder _launcher.wait()
2015-08-04 16:38:21.430 2504 ERROR cinder File "C:\Python27\lib\site-packages\oslo_service\service.py", line 278, in wait
2015-08-04 16:38:21.430 2504 ERROR cinder self.handle_signal()
2015-08-04 16:38:21.430 2504 ERROR cinder File "C:\Python27\lib\site-packages\oslo_service\service.py", line 243, in handle_signal
2015-08-04 16:38:21.430 2504 ERROR cinder (signal.SIGTERM, signal.SIGHUP, signal.SIGINT),
2015-08-04 16:38:21.430 2504 ERROR cinder AttributeError: 'module' object has no attribute 'SIGHUP'
2015-08-04 16:38:21.430 2504 ERROR cinder

The workaround for now was to force oslo.service==0.5.0 but this should be fixed

Extra info: it affects also nova-compute on HyperV

[Elena Ezhova (eezhova)]

_is_sighup_supported check should be made before we try to access signal.SIGHUP:

https://github.com/openstack/oslo.service/blob/master/oslo_service/service.py#L151

[Elena Ezhova (eezhova)]

https://review.openstack.org/#/c/209431/