Got "NaApiError: NetApp API failed. Reason - 13040: Volume" r3 "does not exist in Vserver" svm001 " Error in cinder log

Issue

• I am concerned about the ERROR output in cinder log.
• Please let me know if the error is a problem and if not, how to suppress the error.

Error log contents

2016-12-22 19:18:32.922 pid:24291 loglevel:ERROR api:cinder.volume.drivers.netapp.dataontap.nfs_cmode request:req-49a903f8-de37-4029-8f42-39e1221ddfeb e64ac1699b84496196e1106f34a78d7b 9106245d769f4625890ab50da2eb66ae - - - message:Could not do delete of volume 8d7d0139-5a15-446a-a676-2f9069061f41 on filer, falling back to exec of "rm" command. host:control002 component:cinder subcomponent:volume

2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode Traceback (most recent call last): host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/nfs_cmode.py", line 350, in _delete_backing_file_for_volume host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode self._delete_volume_on_filer(volume) host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/utils.py", line 872, in trace_method_logging_wrapper host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return f(*args, **kwargs) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/utils.py", line 872, in trace_method_logging_wrapper host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return f(*args, **kwargs) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/nfs_cmode.py", line 366, in _delete_volume_on_filer host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode self.zapi_client.delete_file(path_on_filer) host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/utils.py", line 872, in trace_method_logging_wrapper host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return f(*args, **kwargs) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/utils.py", line 872, in trace_method_logging_wrapper host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return f(*args, **kwargs) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/utils.py", line 872, in trace_method_logging_wrapper host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return f(*args, **kwargs) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/client/client_cmode.py", line 638, in delete_file host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode self.send_request('file-delete-file', api_args, True) host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/utils.py", line 872, in trace_method_logging_wrapper host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return f(*args, **kwargs) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/client/client_base.py", line 76, in send_request host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode return self.connection.invoke_successfully(request, enable_tunneling) host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode File "/usr/lib/python2.7/site-packages/cinder/volume/drivers/netapp/dataontap/client/api.py", line 247, in invoke_successfully host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode raise NaApiError(code, msg) host:control002 component:cindersubcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode NaApiError: NetApp API failed. Reason - 13040:Volume "r3" does not exist in Vserver "svm001". Reason: entry doesn't exist. host:control002 component:cinder subcomponent:volume
2016-12-22 19:18:32.922 24291 ERROR cinder.volume.drivers.netapp.dataontap.nfs_cmode host:control002 component:cinder subcomponent:volume