[nova]Lock required in nova reboot server operation

[jybuestc]

Description:
Lock required in nova reboot server operation

Project:
OpenStack

Project Area:
nova

Release:
OpenStack

Severity:
S1

Full Details:

Now nova can receive 2nd reboot request even if 1st reboot is ongoing. A lock is required when it's being reboot.

stack@ubuntu:$ nova reboot aba46ead-87fb-40ff-9df4-9bf4739bda96
Request to reboot server <Server: CentOS_VM> has been accepted.
stack@ubuntu:$ nova reboot --hard aba46ead-87fb-40ff-9df4-9bf4739bda96
Request to reboot server <Server: CentOS_VM> has been accepted.
stack@ubuntu:$ nova reboot --hard aba46ead-87fb-40ff-9df4-9bf4739bda96
Request to reboot server <Server: CentOS_VM> has been accepted.
stack@ubuntu:$ nova list
+--------------------------------------+-----------+-------------+---------------------+-------------+--------------------------------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-----------+-------------+---------------------+-------------+--------------------------------------------------------+
| aba46ead-87fb-40ff-9df4-9bf4739bda96 | CentOS_VM | HARD_REBOOT | reboot_pending_hard | Running | private=10.0.0.4, fd49:d2f7:ca05:0:f816:3eff:fe60:1823 |
+--------------------------------------+-----------+-------------+---------------------+-------------+--------------------------------------------------------+
stack@ubuntu:$ nova reboot aba46ead-87fb-40ff-9df4-9bf4739bda96
Request to reboot server <Server: CentOS_VM> has been accepted.
stack@ubuntu:$ nova list
+--------------------------------------+-----------+--------+----------------+-------------+--------------------------------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-----------+--------+----------------+-------------+--------------------------------------------------------+
| aba46ead-87fb-40ff-9df4-9bf4739bda96 | CentOS_VM | REBOOT | reboot_started | Running | private=10.0.0.4, fd49:d2f7:ca05:0:f816:3eff:fe60:1823 |
+--------------------------------------+-----------+--------+----------------+-------------+--------------------------------------------------------+
stack@ubuntu:~$ nova reboot --hard aba46ead-87fb-40ff-9df4-9bf4739bda96
Request to reboot server <Server: CentOS_VM> has been accepted.