devstack cinder-volume服务状态为down

cinder-manage service list

查看到有一个 xxx状态

Binary           Host                                 Zone             Status     State Updated At           RPC Version  Object Version  Cluster
cinder-scheduler ubsv                                 nova             enabled    :-)   2019-05-16 09:19:30  3.11         1.37
cinder-volume    ubsv@lvmdriver-1                     nova             enabled    XXX   2019-05-16 08:13:18  3.16         1.37                                                
`systemctl restart devstack@c*` #重新启动cinder  cinder-volume 过一会就会down状态,所有虚拟机都无法启动.
root@ubsv:~# vgs
  VG                        #PV #LV #SN Attr   VSize   VFree
  stack-volumes-lvmdriver-1   1   5   0 wz--n- <24.00g  <1.15g  #没有空间了
  ubuntu-vg                   2   4   0 wz--n-  <1.83t <63.54g

那就增加个 vg吧.

修改

vim /etc/cinder/cinder.conf

#修改的
default_volume_type = lvmdriver-2
enabled_backends = lvmdriver-1,lvmdriver-2
#原有的
[lvmdriver-1]
image_volume_cache_enabled = True
volume_clear = zero
lvm_type = auto
target_helper = tgtadm
volume_group = stack-volumes-lvmdriver-1
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_backend_name = lvmdriver-1
#新增
[lvmdriver-2]
volume_group = ubuntu-vg
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_backend_name = lvmdriver-2

重新启动cinder服务

systemctl restart devstack@c*

重新查看下状态,发现已经有了.

root@ubsv:~# cinder-manage service list
DEBUG oslo_db.sqlalchemy.engines [None req-606341f1-d96b-4b01-88bf-4fe7bca206e9 None None] MySQL server mode set to STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION {{(pid=6243) _check_effective_sql_mode /usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/engines.py:307}}
Binary           Host                                 Zone             Status     State Updated At           RPC Version  Object Version  Cluster
cinder-scheduler ubsv                                 nova             enabled    :-)   2019-05-16 09:47:18  3.11         1.37
cinder-volume    ubsv@lvmdriver-1                     nova             enabled    :-)   2019-05-16 09:47:22  3.16         1.37
cinder-volume    ubsv@lvmdriver-2                     nova             enabled    :-)   2019-05-16 09:47:18  3.16         1.37

在dashboard中 管理员登录, 管理员-卷类型-创建卷类型 {随便取个名字吧},然后找到新创建的卷类型点击下三角箭头->查看扩展规格 创建一个键值对 volume_backend_name lvmdriver-2 刚才我们创建的.

之后可以迁移卷到我们新的卷类型. 以后默认新建卷都存储在我们新建的lvmdriver-2#lvmdriver-2 中,至此 目前解决了这个问题.

关联错误提示: schedule allocate volume:Could not find any available weighted backend. cinder service 状态为 down