openstack虛擬機(jī)遷移的操作記錄

1、 需求說明:計(jì)算節(jié)點(diǎn)linux-node1.openstack：計(jì)算節(jié)點(diǎn)linux-node2.openstack：7這兩個(gè)計(jì)算節(jié)點(diǎn)在同個(gè)控制節(jié)點(diǎn)下（既是控制節(jié)點(diǎn)，也是其中個(gè)計(jì)算節(jié)點(diǎn)），現(xiàn)在需要將linux-node1.openstack上的虛擬機(jī)kvm-server005遷移到liunx-node2.openstack上。、openstack的虛擬機(jī)線下遷移（冷遷移，遷移前關(guān)閉虛擬機(jī)）操作記錄如下：linux-node1.openstack上的操作：1）查看虛擬機(jī)rootlinux-node1 src# source admi

2、n-openrc.shrootlinux-node1 src# nova list+-+-+-+-+-+-+| ID| Name| Status | Task State | Power State | Networks|+-+-+-+-+-+-+| b6a4738d-7e01-a09b-7008b612d126 | beta-new1| 9acdb28b-02c2-41bb-87c4-5f3a8fa008ab | dev-new-test1| 30e5ba3e-9ba6-7523cf865b6f | fangfull-backup| 3483d9f1-4015-48d9-9837-b67ca

3、82dd54d | kvm-server005| 5ec50ae5-a1f9-b509-cfeb5ef62ca3 | memcache1-backup| a5863e46-ef75-a9df-505da5db58ed | memcache2-backup| 377c536e-4d27-8d9d-24c2686a73f6 | memcache3-backup| a2893208-3ec9-ab82-d7a870206cb9 | xqsj-backup| ACTIVE | -| ACTIVE | -| ACTIVE | -| ACTIVE | -| ACTIVE | -| ACTIVE | -|

4、ACTIVE | -| ACTIVE | -| Running | flat= 51| Running | flat= 50| Running | flat= 52| Running | flat=54 | Running | flat= 55| Running | flat= 56| Running | flat= 03| Running | flat= 53|+-+-+-+-+-+-+2）停待遷移虛擬機(jī)kvm-ser

5、ver005rootlinux-node1 src# nova stop 3483d9f1-4015-48d9-9837-b67ca82dd54dRequest to stop server 3483d9f1-4015-48d9-9837-b67ca82dd54d has been accepted.rootlinux-node1 src# nova list+-+-+-+-+-+-+| ID| Name| Status | Task State | Power State | Networks|+-+-+-+-+-+-+| b6a4738d-7e01-4068-a09b-7008b612d1

6、26 | beta-new1| 9acdb28b-02c2-41bb-87c4-5f3a8fa008ab | dev-new-test1| 30e5ba3e-3942-4119-9ba6-7523cf865b6f | fangfull-backup|3483d9f1-4015-48d9-9837-b67ca82dd54d | kvm-server005| 5ec50ae5-a1f9-4425-b509-cfeb5ef62ca3 | memcache1-backup| a5863e46-ef75-4601-a9df-505da5db58ed | memcache2-backup| 377c536

7、e-4d27-4447-8d9d-24c2686a73f6 | memcache3-backup| a2893208-3ec9-4606-ab82-d7a870206cb9 | xqsj-backup| ACTIVE | -| ACTIVE | -| ACTIVE | -| SHUTOFF|-| ACTIVE | -| ACTIVE | -| ACTIVE | -| ACTIVE | -| Running | flat=51 | Running | flat=50 | Running | flat=52 | Shutdown |

8、 flat=54 | Running | flat=55 | Running | flat=56 | Running | flat=03 | Running | flat=53 |+-+-+-+-+-+-+3）查看待遷虛擬機(jī)kvm-server005所在的宿主機(jī)rootlinux-node1 src# nova show 3483d9f1-4015-48d9-9837-b67ca82dd54d | grep OS-EXT-SRV-ATTR:hos| OS-EXT-SRV-ATTR:ho

9、st| linux-node1.openstack4）登錄宿主機(jī)linux-node1.openstack上將虛擬機(jī)kvm-server005虛擬機(jī)的數(shù)據(jù)拷貝到待遷移的宿主機(jī)linux-node2.openstack上rootlinux-node1 src# cd /var/lib/nova/instancesrootlinux-node1 instances# ls30e5ba3e-3942-4119-9ba6-7523cf865b6f 5ec50ae5-a1f9-4425-b509-cfeb5ef62ca3 a5863e46-ef75-4601-a9df-505da5db58ed comp

10、ute_nodes3483d9f1-4015-48d9-9837-b67ca82dd54d9acdb28b-02c2-41bb-87c4-5f3a8fa008ab b6a4738d-7e01-4068-a09b-7008b612d126 locks377c536e-4d27-4447-8d9d-24c2686a73f6 a2893208-3ec9-4606-ab82-d7a870206cb9 _basesnapshotsrootlinux-node1 instances# rsync -e ssh -p22 -avpgolr 3483d9f1-4015-48d9-9837-b67ca82dd5

11、4d 7:/var/lib/nova/instances/sending incremental file list3483d9f1-4015-48d9-9837-b67ca82dd54d/3483d9f1-4015-48d9-9837-b67ca82dd54d/console.log3483d9f1-4015-48d9-9837-b67ca82dd54d/disk3483d9f1-4015-48d9-9837-b67ca82dd54d/3483d9f1-4015-48d9-9837-b67ca82dd54d/disk.swap3483d9f1-4015

12、-48d9-9837-b67ca82dd54d/libvirt.xmlsent 381469737 bytes received 111 bytes 69358154.18 bytes/sectotal size is 381422781 speedup is 1.00標(biāo)節(jié)點(diǎn)linux-node2.openstack上的操作1）查看虛擬機(jī)kvm-server005的數(shù)據(jù)有沒有拷貝過來，修改權(quán)限r(nóng)ootlinux-node2 instances# pwd/var/lib/nova/instancesrootlinux-node2 instances# lltotal 12drwxr-xr-x.

13、2 nova nova 85 Oct31 14:54 0944254c-1c75-4523-9751-2389d677d59cdrwxr-xr-x. 2 nova nova 85 Sep 6 12:59 3483d9f1-4015-48d9-9837-b67ca82dd54ddrwxr-xr-x. 2 nova nova 85 Oct31 17:29 946b340a-28bc-492d-8b3a-59d2fea1b464drwxr-xr-x. 2 nova nova 4096 Oct31 17:17 _base-rw-r-r-. 1 nova nova 44 Nov 1 10:53 comp

14、ute_nodesdrwxr-xr-x. 2 nova nova 85 Oct31 17:23 f6be1cb3-a694-4492-b2db-55ff9f09d843drwxr-xr-x. 2 nova nova 4096 Oct31 17:14 locksrootlinux-node2 instances# chown -R nova.nova 3483d9f1-4015-48d9-9837-b67ca82dd54d/rootlinux-node2 instances# ll 3483d9f1-4015-48d9-9837-b67ca82dd54d/total 372492-rw-rw-.

15、 1 nova nova 65214 Sep 8 13:58 console.log-rw-r-r-. 1 nova nova 381157376 Nov 1 10:59 disk-rw-r-r-. 1 nova nova-rw-r-r-. 1 nova nova 197120 Sep 6 12:59 disk.swap-rw-r-r-. 1 nova nova 2909 Sep 6 12:59 libvirt.xml162 Sep 6 12:59 2）登錄數(shù)據(jù)庫更改MySQL中的host、node字段為新的物理主機(jī)名字rootlinux-node2 instances# m

16、ysql-pEnter password:Welcome to the MariaDB monitor. Commands end with ; or g.Your MariaDB connection id is 4063Server version: 10.1.17-MariaDB MariaDB ServerCopyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.Type help; or h for help. Type c to clear the current input statement.Mari

17、aDB (none)use nova;Database changedMariaDB nova update instances set host=linux-node2.openstack, node=linux-node2.openstack where uuid=3483d9f1-4015-48d9-9837-b67ca82dd54d;Query OK,1 rows affected (0.01 sec)Rows matched: 1 Changed: 1 Warnings: 0MariaDB nova3）在標(biāo)節(jié)點(diǎn)linux-node2.openstack上啟動(dòng)虛擬機(jī)，啟動(dòng)前重啟下該計(jì)算

18、節(jié)點(diǎn)的compute服務(wù)rootlinux-node2 instances# systemctl restart openstack-nova-computerootlinux-node2 instances# nova start 3483d9f1-4015-48d9-9837-b67ca82dd54d4）驗(yàn)證虛擬機(jī)所在的宿主機(jī)rootlinux-node2 src# nova list+-+-+-+-+-+-+| ID| Name| Status | Task State | Power State | Networks|+-+-+-+-+-+-+| 946b340a-28bc-492d-

19、8b3a-59d2fea1b464 | centos03 | ACTIVE | -| 0944254c-1c75-4523-9751-2389d677d59c | kvm-centos01 | ACTIVE | -| f6be1cb3-a694-4492-b2db-55ff9f09d843 | kvm-centos02 | ACTIVE | -| 3483d9f1-4015-48d9-9837-b67ca82dd54d | kvm-server005| ACTIVE | -| Running | flat=04 | Running | flat=21

20、 | Running | flat=22 | Running | flat=54|+-+-+-+-+-+-+rootlinux-node2 src# nova show 3483d9f1-4015-48d9-9837-b67ca82dd54d | grep OS-EXT-SRV-ATTR:hos| OS-EXT-SRV-ATTR:host| linux-node2.openstack、openstack的虛擬機(jī)在線遷移（熱遷移，虛擬機(jī)在運(yùn)中遷移）直接在控制節(jié)點(diǎn)上操作1）查看虛擬機(jī)rootlinux-node1 src# source admin-op

21、enrc.shrootlinux-node1 src# nova list+-+-+-+-+-+-+| ID| Name| Status | Task State | Power State | Networks|+-+-+-+-+-+-+| b6a4738d-7e01-4068-a09b-7008b612d126 | beta-new1| 9acdb28b-02c2-41bb-87c4-5f3a8fa008ab | dev-new-test1| 30e5ba3e-3942-4119-9ba6-7523cf865b6f | fangfull-backup| 3483d9f1-4015-48d9

22、-9837-b67ca82dd54d | kvm-server005| 5ec50ae5-a1f9-4425-b509-cfeb5ef62ca3 | memcache1-backup| a5863e46-ef75-4601-a9df-505da5db58ed | memcache2-backup| 377c536e-4d27-4447-8d9d-24c2686a73f6 | memcache3-backup| a2893208-3ec9-4606-ab82-d7a870206cb9 | xqsj-backup| ACTIVE | -| ACTIVE | -| ACTIVE | -| ACTIV

23、E | -| ACTIVE | -| ACTIVE | -| ACTIVE | -| ACTIVE | -| Running | flat=51 | Running | flat=50 | Running | flat=52 | Running | flat=54 | Running | flat=55 | Running | flat=56 | Running | flat=03 | Running | flat=53

24、 |+-+-+-+-+-+-+2）查看待遷虛擬機(jī)kvm-server005所在的宿主機(jī)rootlinux-node1 src# nova show 3483d9f1-4015-48d9-9837-b67ca82dd54d | grep OS-EXT-SRV-ATTR:hos| OS-EXT-SRV-ATTR:host| linux-node1.openstack3）查看可的計(jì)算節(jié)點(diǎn)rootlinux-node1 src# nova-manage service listNo handlers could be found for logger oslo_config.cfgBinary.HostZoneStatus State Updated_Atnova-compute linux-node1.openstacknova-compute linux-node2.openstacknovanovaenabled :-) 2016-11-01 05:12:56enabled XXX 2016-10-31 05:55:244）查看標(biāo)計(jì)算節(jié)點(diǎn)linux-node2.openstack資源rootlinux-node1 src# nova-m