Openstack-M版(双节点)热迁移记录

喜欢ヅ旅行 2023-05-29 11:39 5阅读 0赞

### 本次测试采用如下配置 ###

<table> 
 <thead> 
  <tr> 
   <th>主机名</th> 
   <th>配置</th> 
   <th>IP地址</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>controller</td> 
   <td>4G4核</td> 
   <td>192.168.100.10</td> 
  </tr> 
  <tr> 
   <td>compute</td> 
   <td>4G4核</td> 
   <td>192.168.100.20</td> 
  </tr> 
 </tbody> 
</table>

# 1.编辑/etc/sysconfig/libvirtd文件 #

# 2.编辑/etc/libvirtd/libvirtd.conf文件 #

# 3.重启libvirtd服务 #

# 4.测试virsh链接 #

# 5.编辑/etc/nova/nova.conf文件 #

# 6.重启nova服务 #

# 7.开始热迁移 #

# 8.检查 #

## 1.编辑/etc/sysconfig/libvirtd文件 ##

[root@controller ~]# vi /etc/sysconfig/libvirtd 
    # Override the default config file
    # NOTE: This setting is no longer honoured if using
    # systemd. Set '--config /etc/libvirt/libvirtd.conf'
    # in LIBVIRTD_ARGS instead.
    LIBVIRTD_CONFIG=/etc/libvirt/libvirtd.conf
    
    # Listen for TCP/IP connections
    # NB. must setup TLS/SSL keys prior to using this
    LIBVIRTD_ARGS="--listen"

[root@compute ~]# vi /etc/sysconfig/libvirtd 
    # Override the default config file
    # NOTE: This setting is no longer honoured if using
    # systemd. Set '--config /etc/libvirt/libvirtd.conf'
    # in LIBVIRTD_ARGS instead.
    LIBVIRTD_CONFIG=/etc/libvirt/libvirtd.conf
    
    # Listen for TCP/IP connections
    # NB. must setup TLS/SSL keys prior to using this
    LIBVIRTD_ARGS="--listen"

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZseTE1NzQ_size_16_color_FFFFFF_t_70]  
\+  
\+  
\+  
\+  
\+  
\+

## 2.编辑/etc/libvirtd/libvirtd.conf文件 ##

22 listen_tls = 0
     23 
     24 # Listen for unencrypted TCP connections on the public TCP/IP port.
     25 # NB, must pass the --listen flag to the libvirtd process for this to
     26 # have any effect.
     27 #
     28 # Using the TCP socket requires SASL authentication by default. Only
     29 # SASL mechanisms which support data encryption are allowed. This is
     30 # DIGEST_MD5 and GSSAPI (Kerberos5)
     31 #
     32 # This is disabled by default, uncomment this to enable it.
     33 listen_tcp = 1
     163 auth_tcp = "none"

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZseTE1NzQ_size_16_color_FFFFFF_t_70 1]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZseTE1NzQ_size_16_color_FFFFFF_t_70 2]

## 3.重启libvirtd服务 ##

[root@controller ~]# systemctl restart libvirtd
    [root@controller ~]# systemctl restart libvirtd

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZseTE1NzQ_size_16_color_FFFFFF_t_70 3]

## 4.测试virsh链接 ##

[root@controller ~]# virsh -c qemu+tcp://compute/system
    Welcome to virsh, the virtualization interactive terminal.
    
    Type:  'help' for help with commands
           'quit' to quit
    
    virsh # 
    
    
    [root@conmpute ~]# virsh -c qemu+tcp://controller/system
    Welcome to virsh, the virtualization interactive terminal.
    
    Type:  'help' for help with commands
           'quit' to quit
    
    virsh #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZseTE1NzQ_size_16_color_FFFFFF_t_70 4]

## 5.编辑/etc/nova/nova.conf文件 ##

### 两个节点都需要操作 ###

3734 live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE, VIR_MIGRATE_PEER2PEER, VIR_MIGRATE_LIVE, VIR_MIGRATE_TUNNELLED
       3735 
       3736 # Migration flags to be set for block migration (string value)
       3737 # This option is deprecated for removal.
       3738 # Its value may be silently ignored in the future.
       3739 # Reason: The correct block migration flags can be inferred from the new
       3740 # live_migration_tunnelled config option. block_migration_flag will be removed
       3741 # to avoid potential misconfiguration.
       3742 block_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE, VIR_MIGRATE_PEER2PEER, VIR_MIGRATE_LIVE, VIR_MIGRATE_NON_SHARED_INC

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZseTE1NzQ_size_16_color_FFFFFF_t_70 5]

## 6重启nova服务 ##

[root@controller ~]# systemctl restart openstack-nova*
    [root@compute ~]# systemctl restart openstack-nova*

## 7.开始热迁移 ##

### 查看实例ID (这里的test为实例名称) ###

[root@controller ~]# nova show test |awk -F '|' NR==29'{print $3}'
     7a3ba94d-da58-4108-b927-29d3469da357

### 开始迁移(这里的test实例原本在compute节点，这里需要热迁移到controller节点) ###

[root@controller ~]# nova live-migration 7a3ba94d-da58-4108-b927-29d3469da357 controller

## 8.检查 ##

[root@controller ~]# nova show test
    +--------------------------------------+----------------------------------------------------------+
    | Property                             | Value                                                    |
    +--------------------------------------+----------------------------------------------------------+
    | OS-DCF:diskConfig                    | MANUAL                                                   |
    | OS-EXT-AZ:availability_zone          | nova                                                     |
    | OS-EXT-SRV-ATTR:host                 | controller                                               |
    | OS-EXT-SRV-ATTR:hostname             | test                                                     |
    | OS-EXT-SRV-ATTR:hypervisor_hostname  | controller                                               |
    | OS-EXT-SRV-ATTR:instance_name        | instance-00000004                                        |
    | OS-EXT-SRV-ATTR:kernel_id            |                                                          |
    | OS-EXT-SRV-ATTR:launch_index         | 0                                                        |
    | OS-EXT-SRV-ATTR:ramdisk_id           |                                                          |
    | OS-EXT-SRV-ATTR:reservation_id       | r-coe0peip                                               |
    | OS-EXT-SRV-ATTR:root_device_name     | /dev/vda                                                 |
    | OS-EXT-SRV-ATTR:user_data            | -                                                        |
    | OS-EXT-STS:power_state               | 1                                                        |
    | OS-EXT-STS:task_state                | -                                                        |
    | OS-EXT-STS:vm_state                  | active                                                   |
    | OS-SRV-USG:launched_at               | 2019-11-05T07:00:26.000000                               |
    | OS-SRV-USG:terminated_at             | -                                                        |
    | accessIPv4                           |                                                          |
    | accessIPv6                           |                                                          |
    | config_drive                         |                                                          |
    | created                              | 2019-11-05T06:59:24Z                                     |
    | description                          | -                                                        |
    | flavor                               | m1.small (2)                                             |
    | hostId                               | 8ffe301f6f31cde750b8a8ce296684831da56b737e0ef3580d86f305 |
    | host_status                          | UP                                                       |
    | id                                   | 7a3ba94d-da58-4108-b927-29d3469da357                     |
    | image                                | centos7.2 (8d98c502-70ee-44d1-8c75-bfef2d1ca444)         |
    | int-net network                      | 10.0.0.6                                                 |
    | key_name                             | -                                                        |
    | locked                               | False                                                    |
    | metadata                             | {
        }                                                       |
    | name                                 | test                                                     |
    | os-extended-volumes:volumes_attached | []                                                       |
    | progress                             | 0                                                        |
    | security_groups                      | default                                                  |
    | status                               | ACTIVE                                                   |
    | tenant_id                            | 01bf9902a50c4fddb601a0e3edf37c32                         |
    | updated                              | 2019-11-05T11:11:16Z                                     |
    | user_id                              | 8a163fbfcf80471883d1c3d34ae2aeef                         |
    +--------------------------------------+----------------------------------------------------------+

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