状态为Available 的volume 才能够被delete，如果volume当前已经被attach 到Instance，需要先detach后才能delete。delete的操作实现比较简单，流程图如下：
 
 
1、向cinder-api 发送delete消息
2、cinder-api发送消息
3、cinder-volume执行delete操作
 
 
 
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: INFO cinder.api.openstack.wsgi [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] DELETE http://10.12.30.21/volume/v3/9ed27f1df9814f91b370d1003b066b0a/volumes/fe3d0886-6dfb-4cc6-898a-72e902fba912
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: DEBUG cinder.api.openstack.wsgi [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] Empty body provided in request {{(pid=21070) get_body /opt/stack/cinder/cinder/api/openstack/wsgi.py:718}}
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: DEBUG cinder.api.openstack.wsgi [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] Calling method 'delete' {{(pid=21070) _process_stack /opt/stack/cinder/cinder/api/openstack/wsgi.py:872}}
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: INFO cinder.api.v3.volumes [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] Delete volume with id: fe3d0886-6dfb-4cc6-898a-72e902fba912
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: INFO cinder.volume.api [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] Volume info retrieved successfully.
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: INFO cinder.volume.api [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] Delete volume request issued successfully.
Jul  2 20:02:10 DevStack-Rocky-Controller-21 devstack@c-api.service: INFO cinder.api.openstack.wsgi [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin admin] http://10.12.30.21/volume/v3/9ed27f1df9814f91b370d1003b066b0a/volumes/fe3d0886-6dfb-4cc6-898a-72e902fba912 returned with HTTP 202
 
 
Jul  2 20:02:13 DevStack-Rocky-Controller-21 cinder-scheduler: DEBUG cinder.scheduler.host_manager [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Received volume service update from DevStack-Rocky-Compute-22@lvmdriver-1: {u'filter_function': None, u'goodness_function': None, u'shared_targets': False, u'volume_backend_name': u'lvmdriver-1', u'driver_version': u'3.0.0', u'sparse_copy_volume': True, u'pools': [{u'pool_name': u'lvmdriver-1', u'filter_function': None, u'goodness_function': None, u'multiattach': True, u'total_volumes': 1, u'provisioned_capacity_gb': 0.0, u'allocated_capacity_gb': 0, u'thin_provisioning_support': True, u'free_capacity_gb': 22.8, u'location_info': u'LVMVolumeDriver:DevStack-Rocky-Compute-22:stack-volumes-lvmdriver-1:thin:0', u'total_capacity_gb': 22.8, u'thick_provisioning_support': False, u'reserved_percentage': 0, u'QoS_support': False, u'max_over_subscription_ratio': u'20.0', u'backend_state': u'up'}], u'vendor_name': u'Open Source', u'storage_protocol': u'iSCSI'} {{(pid=21820) update_service_capabilities /opt/stack/cinder/cinder/scheduler/host_manager.py:550}}
Jul  2 20:02:13 DevStack-Rocky-Controller-21 cinder-scheduler: DEBUG cinder.scheduler.host_manager [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Publish storage capacity: [{'provisioned': 0.0, 'reported_at': datetime.datetime(2019, 7, 2, 12, 2, 13, 258687), 'virtual_free': 456.0, 'free': 22.8, 'name_to_id': u'DevStack-Rocky-Compute-22@lvmdriver-1#lvmdriver-1', 'allocated': 0.0, 'total': 22.8, 'type': 'pool'}, {'provisioned': 0.0, 'reported_at': datetime.datetime(2019, 7, 2, 12, 2, 13, 258687), 'virtual_free': 456.0, 'free': 22.8, 'name_to_id': u'DevStack-Rocky-Compute-22@lvmdriver-1', 'allocated': 0.0, 'total': 22.8, 'type': 'backend'}]. {{(pid=21820) _notify_capacity_usage /opt/stack/cinder/cinder/scheduler/host_manager.py:859}}
 
 
Jul  2 20:02:10 DevStack-Rocky-Compute-22 cinder-volume: DEBUG cinder.coordination [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Lock "/opt/stack/data/cinder/cinder-fe3d0886-6dfb-4cc6-898a-72e902fba912-delete_volume" acquired by "delete_volume" :: waited 0.001s {{(pid=27933) _synchronized /opt/stack/cinder/cinder/coordination.py:150}}
Jul  2 20:02:10 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.lockutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Lock "lioadm" acquired by "cinder.volume.targets.lio._execute" :: waited 0.000s {{(pid=27933) inner /usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:273}}
Jul  2 20:02:10 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf cinder-rtstool get-targets {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf cinder-rtstool get-targets" returned: 0 in 0.509s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.lockutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Lock "lioadm" released by "cinder.volume.targets.lio._execute" :: held 0.511s {{(pid=27933) inner /usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:285}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: INFO cinder.volume.targets.iscsi [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Skipping remove_export. No iscsi_target is presently exported for volume: fe3d0886-6dfb-4cc6-898a-72e902fba912
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o vg_name,name,size --nosuffix stack-volumes-lvmdriver-1/volume-fe3d0886-6dfb-4cc6-898a-72e902fba912 {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o vg_name,name,size --nosuffix stack-volumes-lvmdriver-1/volume-fe3d0886-6dfb-4cc6-898a-72e902fba912" returned: 0 in 0.269s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvdisplay --noheading -C -o Attr stack-volumes-lvmdriver-1/volume-fe3d0886-6dfb-4cc6-898a-72e902fba912 {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvdisplay --noheading -C -o Attr stack-volumes-lvmdriver-1/volume-fe3d0886-6dfb-4cc6-898a-72e902fba912" returned: 0 in 0.269s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:11 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf lvremove --config activation { retry_deactivation = 1}  -f stack-volumes-lvmdriver-1/volume-fe3d0886-6dfb-4cc6-898a-72e902fba912 {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf lvremove --config activation { retry_deactivation = 1}  -f stack-volumes-lvmdriver-1/volume-fe3d0886-6dfb-4cc6-898a-72e902fba912" returned: 0 in 0.356s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: INFO cinder.volume.drivers.lvm [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Successfully deleted volume: fe3d0886-6dfb-4cc6-898a-72e902fba912
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: WARNING cinder.quota [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Deprecated: Default quota for resource: gigabytes_lvmdriver-1 is set by the default quota flag: quota_gigabytes_lvmdriver-1, it is now deprecated. Please use the default quota class for default quota.
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: WARNING cinder.quota [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Deprecated: Default quota for resource: volumes_lvmdriver-1 is set by the default quota flag: quota_volumes_lvmdriver-1, it is now deprecated. Please use the default quota class for default quota.
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG cinder.quota [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Created reservations ['882c2991-93fd-454d-9cdd-95adc55f0dd1', 'aac388ab-8ee0-49e1-9329-640c1e122eee', 'f55cc2ac-64ae-42b5-bf41-333df99e154b', '21df7a63-f503-42af-8005-a110eec9549e'] {{(pid=27933) reserve /opt/stack/cinder/cinder/quota.py:1029}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG cinder.volume.drivers.lvm [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Updating volume stats {{(pid=27933) _update_volume_stats /opt/stack/cinder/cinder/volume/drivers/lvm.py:192}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C vgs --noheadings --unit=g -o name,size,free,lv_count,uuid --separator : --nosuffix stack-volumes-lvmdriver-1 {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C vgs --noheadings --unit=g -o name,size,free,lv_count,uuid --separator : --nosuffix stack-volumes-lvmdriver-1" returned: 0 in 0.269s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o vg_name,name,size --nosuffix stack-volumes-lvmdriver-1 {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o vg_name,name,size --nosuffix stack-volumes-lvmdriver-1" returned: 0 in 0.286s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o size,data_percent --separator : --nosuffix /dev/stack-volumes-lvmdriver-1/stack-volumes-lvmdriver-1-pool {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o size,data_percent --separator : --nosuffix /dev/stack-volumes-lvmdriver-1/stack-volumes-lvmdriver-1-pool" returned: 0 in 0.272s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:12 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Running cmd (subprocess): sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o vg_name,name,size --nosuffix stack-volumes-lvmdriver-1 {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:372}}
Jul  2 20:02:13 DevStack-Rocky-Compute-22 cinder-volume: DEBUG oslo_concurrency.processutils [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] CMD "sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C lvs --noheadings --unit=g -o vg_name,name,size --nosuffix stack-volumes-lvmdriver-1" returned: 0 in 0.259s {{(pid=27933) execute /usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py:409}}
Jul  2 20:02:13 DevStack-Rocky-Compute-22 cinder-volume: DEBUG cinder.manager [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Notifying Schedulers of capabilities ... {{(pid=27933) _publish_service_capabilities /opt/stack/cinder/cinder/manager.py:194}}
Jul  2 20:02:13 DevStack-Rocky-Compute-22 cinder-volume: INFO cinder.volume.manager [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Deleted volume successfully.
Jul  2 20:02:13 DevStack-Rocky-Compute-22 cinder-volume: DEBUG cinder.coordination [None req-da9d0b6b-fe6f-46d8-87a4-114013433fe6 admin None] Lock "/opt/stack/data/cinder/cinder-fe3d0886-6dfb-4cc6-898a-72e902fba912-delete_volume" released by "delete_volume" :: held 2.733s {{(pid=27933) _synchronized /opt/stack/cinder/cinder/coordination.py:162}}
 
 

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