描述
我使用以下方式安装了 Openstack WallabyOpenStack安装指南，所有命令和配置都在我的Github。这个 LAB 在 VirtualBox 上运行，并且我在 ESXi 上有另一个具有相同配置和 Openstack 版本的 LAB，没有任何问题。
在此刻一个控制器和两个计算节点。
在下面的部分中正确改进数据库权限配置
数据库已正确创建：
user@controller001:~$ sudo mysql
MariaDB [(none)]> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| glance |
| information_schema |
| keystone |
| mysql |
| nova |
| nova_api |
| nova_cell0 |
| performance_schema |
| placement |
+--------------------+
授予这些数据库的所有权限：
MariaDB [(none)]> SHOW GRANTS FOR nova;
+-----------------------------------------------------------------------------------------------------+
| Grants for nova@% |
+-----------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO `nova`@`%` IDENTIFIED BY PASSWORD '*3A4A03AC22526F6B591010973A741D59A71D728E' |
| GRANT ALL PRIVILEGES ON `nova`.* TO `nova`@`%` |
| GRANT ALL PRIVILEGES ON `nova_cell0`.* TO `nova`@`%` |
| GRANT ALL PRIVILEGES ON `nova_api`.* TO `nova`@`%` |
+-----------------------------------------------------------------------------------------------------+
从计算节点远程访问数据库：
user@compute001:~$ mysql -unova -popenstack -h controller001
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| nova |
| nova_api |
| nova_cell0 |
+--------------------+
重启nova服务后的Mysql日志：
user@controller001:~$ sudo systemctl restart nova-*
user@controller001:~$ sudo tail -f /var/log/mysql/error.log
2021-10-02 12:52:12 112 [Warning] Aborted connection 112 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 118 [Warning] Aborted connection 118 to db: 'nova_api' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 116 [Warning] Aborted connection 116 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 119 [Warning] Aborted connection 119 to db: 'nova_api' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 115 [Warning] Aborted connection 115 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 113 [Warning] Aborted connection 113 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 114 [Warning] Aborted connection 114 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 117 [Warning] Aborted connection 117 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 109 [Warning] Aborted connection 109 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 110 [Warning] Aborted connection 110 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 111 [Warning] Aborted connection 111 to db: 'nova' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 108 [Warning] Aborted connection 108 to db: 'nova_cell0' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 103 [Warning] Aborted connection 103 to db: 'nova_api' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 102 [Warning] Aborted connection 102 to db: 'nova_api' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:12 105 [Warning] Aborted connection 105 to db: 'nova_cell0' user: 'nova' host: 'controller001' (Got an error reading communication packets)
2021-10-02 12:52:16 141 [Warning] Access denied for user 'nova'@'controller001' (using password: YES)
2021-10-02 12:52:16 142 [Warning] Access denied for user 'nova'@'controller001' (using password: YES)
2021-10-02 12:52:17 147 [Warning] Access denied for user 'nova'@'controller001' (using password: YES)
读取通信数据包时出错
这里以下是解决此错误的一些建议：
SET GLOBAL max_allowed_packet = 1024 * 1024 * 256;
set @@global.max_connections = 400;
SET GLOBAL interactive_timeout=6000;
SET GLOBAL innodb_buffer_pool_size = 1024 * 1024 * 2;
任何尝试发现新主机都会出现以下错误：
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova
....
sqlalchemy.exc.OperationalError: (pymysql.err.OperationalError) (1045, "Access denied for user 'nova'@'controller001' (using password: YES)")
(Background on this error at: http://sqlalche.me/e/13/e3q8)
但我不确定这是否是一个错误
user@controller001:~$ os hypervisor list
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'sqlalchemy.exc.OperationalError'> (HTTP 500) (Request-ID: req-d6edcfa3-ccf2-4eb8-80f8-041cb55e772d)
名称配置：
user@controller001:~$ . admin-openrc
user@controller001:~$ os endpoint list
+----------------------------------+-----------+--------------+--------------+---------+-----------+--------------------------------+
| ID | Region | Service Name | Service Type | Enabled | Interface | URL |
+----------------------------------+-----------+--------------+--------------+---------+-----------+--------------------------------+
| 1e2f0fc829f84a53a337bbb70e7679af | RegionOne | nova | compute | True | internal | http://controller001:8774/v2.1 |
| 38e967a4c87f4464ba6ac965c889f6a4 | RegionOne | placement | placement | True | admin | http://controller001:8778 |
| 398d51ab439f4afc8fb7c71adc1bf3a9 | RegionOne | keystone | identity | True | internal | http://controller001:5000/v3/ |
| 4aaf9ac0ccec41978e541a0de0e55ed4 | RegionOne | nova | compute | True | public | http://controller001:8774/v2.1 |
| 52ba2047ed864b9aa6ad352ba2fe59dc | RegionOne | nova | compute | True | admin | http://controller001:8774/v2.1 |
| 659ed7ae84074b30a6a4941648b994c3 | RegionOne | placement | placement | True | internal | http://controller001:8778 |
| 9cd126c1f07e4b13946edcdc80f9f215 | RegionOne | placement | placement | True | public | http://controller001:8778 |
| aec5b18b834b4a9cad8a4efb83b1b1d7 | RegionOne | glance | image | True | internal | http://controller001:9292 |
| b1a13f51438c40b8b74ec25b89efebab | RegionOne | glance | image | True | public | http://controller001:9292 |
| c35c703090f3478aa7d960293fde1bf0 | RegionOne | keystone | identity | True | admin | http://controller001:5000/v3/ |
| ca231e48c3ad406c8ec757c765b651a6 | RegionOne | glance | image | True | admin | http://controller001:9292 |
| ff927678f6634475bd80bdba7effc3fc | RegionOne | keystone | identity | True | public | http://controller001:5000/v3/ |
+----------------------------------+-----------+--------------+--------------+---------+-----------+--------------------------------+
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
| Name | UUID | Transport URL | Database Connection | Disabled |
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@controller001/nova_cell0 | False |
| cell1 | e62ffdc8-5f28-43ef-9bcb-404812faaeae | rabbit://openstack:****@controller001:5672/ | mysql+pymysql://nova:****@controller001/nova | False |
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
user@controller001:~$ cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 controller001
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.16.50.41 controller001
172.16.50.42 compute011
答案1
这与 MariaDB 权限或数据库 URL 无关。
用这个解决问题错误描述还有其他解决方案对我来说不起作用。创建完全一样的单元格nova 安装指南为我工作并添加传输网址和数据库连接到新曼日命令是我的错，尽管它过去对我有用。
“如果您未指定 --database_connection，那么 nova-manage 将使用配置文件中的 [database]/connection 值，并将数据库名称修改为带有 _cell0 后缀。”
和：
“如果您的数据库位于不同的主机上，那么您应该指定 --database_connection 或确保所使用的 nova.conf 具有指向适用于 cell0 数据库的相同用户/密码/主机的 [database]/connection 值。如果 cell0 映射创建不正确，可以使用 nova-manage cell_v2 delete_cell 命令将其删除，然后使用正确的数据库连接值再次运行 map_cell0。”
所以我认为可能发生的情况是，当您运行 map_cell0 时，它会使用错误的数据库连接 URL 创建 nova_api.cell_mappings 记录，因为现在依赖 cell_mappings 表记录连接到 cell0 数据库的 db sync 失败了，因为它正在寻找 nova_api_cell0，但您有 nova_cell0。
如果在运行 map_cell0 时未指定 --database-connection，则以下代码将创建默认 cell0 连接 URL：
所以我认为您可能只想（1）删除 cell0 映射（2）再次运行 map_cell0 并确保它使用正确的数据库连接 URL 创建 cell0 条目，然后（3）再次运行 nova-manage db sync。
sudo su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --transport-url rabbit://openstack:****@controller001:5672/ --database_connection mysql+pymysql://nova:****@controller001/nova --verbose" nova
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+-------------------------------------------+--------------------------------------------------+----------+
| Name | UUID | Transport URL | Database Connection | Disabled |
+-------+--------------------------------------+-------------------------------------------+--------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@controller001/nova_cell0 | False |
| cell1 | 553970ef-335a-4cf1-90fb-8268c49d5fad | rabbit://openstack:****@controller001:5672/ | mysql+pymysql://nova:****@controller001/nova | False |
+-------+--------------------------------------+-------------------------------------------+--------------------------------------------------+----------+
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 delete_cell --cell_uuid 00000000-0000-0000-0000-000000000000" nova
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 delete_cell --cell_uuid 553970ef-335a-4cf1-90fb-8268c49d5fad" nova
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage api_db sync" nova
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
--transport-url not provided in the command line, using the value [DEFAULT]/transport_url from the configuration file
--database_connection not provided in the command line, using the value [database]/connection from the configuration file
d448f914-53fa-410c-8f89-407e33c96c3f
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage db sync" nova
user@controller001:~$ sudo su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+-------------------------------------------+--------------------------------------------------+----------+
| Name | UUID | Transport URL | Database Connection | Disabled |
+-------+--------------------------------------+-------------------------------------------+--------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@controller001/nova_cell0 | False |
| cell1 | d448f914-53fa-410c-8f89-407e33c96c3f | rabbit://openstack:****@controller001:5672/ | mysql+pymysql://nova:****@controller001/nova | False |
+-------+--------------------------------------+-------------------------------------------+--------------------------------------------------+----------+
user@controller001:~$ openstack compute service list --service nova-compute
+----+--------------+-----------+------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+--------------+-----------+------+---------+-------+----------------------------+
| 5 | nova-compute | compute21 | nova | enabled | up | 2021-10-09T13:59:32.000000 |
+----+--------------+-----------+------+---------+-------+----------------------------+