nova计算与nova云控制器的关系误差

Question

我已经成功地从文档：Ubuntu云基础设施中安装了Open。

我的Juju环境文件：

environments:
maas:
type: maas
maas-server: 'http://192.168.122.4:80/MAAS'
maas-oauth: 'np2beDGZye5ktAGHZC:xEN8GM5BDtWj2ChAW4:rnX9DBQs7Cv2rRZ9g9jxncpYg4uSkTbL'
admin-secret: 'nothing'
default-series: precise

Juju为OpenStack编写的所有节点都有一个LAN card.My has服务器，有一个局域网卡和一个DHCP。我没有使用任何DNS，因为我使用/etc/hosts文件来修复它。

问题来了：

当我运行Juju状态时，我看到一个与nova云控制器之间的关系错误。我能够登录到OpenStack仪表板，并且可以在除Manage部分之外的所有部分中移动，这可能是因为这两个服务器之间的错误。

当我运行Juju调试日志时，我看到以下结果：

2013-05-06 21:02:53,108 unit:nova-cloud-controller/1: hook.output DEBUG: Flushed values for hook 'cloud-compute-relation-joined' on 'cloud-compute:22'
Setting changed: u'ec2_host'=u'node-aabbccddeef4.localdomain' (was unset)
Setting changed: u'network_manager'=u'FlatDHCPManager' (was unset)
Setting changed: u'volume_service'=u'nova-volume' (was unset) 
2013-05-06 21:02:53,108 unit:nova-cloud-controller/1: hook.executor DEBUG: Hook complete: /var/lib/juju/units/nova-cloud-controller-1/charm/hooks/cloud-compute-relation-joined 
2013-05-06 21:02:53,115 unit:nova-cloud-controller/1: hook.scheduler DEBUG: executing hook for nova-compute/0:modified
2013-05-06 21:02:53,116 unit:nova-cloud-controller/1: unit.relation.lifecycle DEBUG: Executing hook cloud-compute-relation-changed
2013-05-06 21:02:53,116 unit:nova-cloud-controller/1: hook.executor DEBUG: Running hook: /var/lib/juju/units/nova-cloud-controller-1/charm/hooks/cloud-compute-relation-changed 
2013-05-06 21:02:53,375 unit:nova-compute/0: hook.scheduler DEBUG: settings changed: (('nova-cloud-controller/1', 1),) 
2013-05-06 21:02:53,378 unit:nova-compute/0: hook.scheduler DEBUG: executing hook for nova-cloud-controller/1:modified 
2013-05-06 21:02:53,378 unit:nova-compute/0: unit.relation.lifecycle DEBUG: Executing hook cloud-compute-relation-changed 
2013-05-06 21:02:53,379 unit:nova-compute/0: hook.executor DEBUG: Running hook: /var/lib/juju/units/nova-compute-0/charm/hooks/cloud-compute-relation-changed 
2013-05-06 21:02:54,133 unit:nova-cloud-controller/1: hook.output DEBUG: hook cloud-compute-relation-changed exited, exit code 0.
2013-05-06 21:02:54,161 unit:nova-cloud-controller/1: hook.executor DEBUG: Hook complete: /var/lib/juju/units/nova-cloud-controller-1/charm/hooks/cloud-compute-relation-changed
2013-05-06 21:02:54,555 unit:nova-compute/0: hook.output INFO: /var/lib/juju/units/nova-compute-0/charm/hooks/cloud-compute-relation-changed: configuring FlatDHCPManager network                                                    manager 
2013-05-06 21:02:55,193 unit:nova-compute/0: unit.hook.api DEBUG: Get unit setting: 'private-address'
2013-05-06 21:03:25,361 unit:nova-compute/0: hook.output ERROR: Traceback (most recent call last):
2013-05-06 21:03:25,361 unit:nova-compute/0: hook.output ERROR:   File "<string>", line 10, in <module>
2013-05-06 21:03:25,361 unit:nova-compute/0: hook.output ERROR:   File "/usr/lib/python2.7/dist-packages/dns/resolver.py", line 770, in query
2013-05-06 21:03:25,362 unit:nova-compute/0: hook.output ERROR:
2013-05-06 21:03:25,362 unit:nova-compute/0: hook.output ERROR: raise_on_no_answer)
2013-05-06 21:03:25,363 unit:nova-compute/0: hook.output ERROR:   File "/usr/lib/python2.7/dist-packages/dns/resolver.py", line 698, in query
2013-05-06 21:03:25,363 unit:nova-compute/0: hook.output ERROR:
2013-05-06 21:03:25,366 unit:nova-compute/0: hook.output ERROR: timeout = self._compute_timeout(start)
File "/usr/lib/python2.7/dist-packages/dns/resolver.py", line 568, in _compute_timeout
raise Timeout
dns.exception.Timeout
2013-05-06 21:03:25,589 unit:nova-compute/0: unit.hook.api INFO: Unable to resolve local IP address
2013-05-06 21:03:25,611 unit:nova-compute/0: hook.output DEBUG: hook cloud-compute-relation-changed exited, exit code Traceback (most recent call last):
Failure: juju.errors.CharmInvocationError: Error processing '/var/lib/juju/units/nova-compute-0/charm/hooks/cloud-compute-relation-changed': exit code 1.
.
2013-05-06 21:03:25,611 unit:nova-compute/0: hook.executor DEBUG: Hook error: /var/lib/juju/units/nova-compute-0/charm/hooks/cloud-compute-relation-changed Error processing '/var                                                   /lib/juju/units/nova-compute-0/charm/hooks/cloud-compute-relation-changed': exit code 1.
2013-05-06 21:03:25,612 unit:nova-compute/0: unit.relation.lifecycle WARNING: Error in cloud-compute-relation-changed hook: Error processing '/var/lib/juju/units/nova-compute-0/c                                                   harm/hooks/cloud-compute-relation-changed': exit code 1.
2013-05-06 21:03:25,612 unit:nova-compute/0: unit.relation.lifecycle INFO: Invoked error handler for cloud-compute-relation-changed hook
2013-05-06 21:03:25,811 unit:nova-compute/0: statemachine DEBUG: relationworkflowstate: transition error (up -> error) {'error_message': "Error processing '/var/lib/juju/units/no                                                   va-compute-0/charm/hooks/cloud-compute-relation-changed': exit code 1.", 'change_type': 'modified'}
2013-05-06 21:03:25,811 unit:nova-compute/0: statemachine DEBUG: relationworkflowstate:  execute action do_error
2013-05-06 21:03:25,812 unit:nova-compute/0: hook.scheduler DEBUG: stopping
2013-05-06 21:03:25,813 unit:nova-compute/0: unit.relation.lifecycle DEBUG: stopped relation:cloud-compute lifecycle
2013-05-06 21:03:25,944 unit:nova-compute/0: statemachine DEBUG: relationworkflowstate: transition complete error (state error) {'error_message': "Error processing '/var/lib/juju                                                   /units/nova-compute-0/charm/hooks/cloud-compute-relation-changed': exit code 1.", 'change_type': 'modified'}
2013-05-06 21:03:25,949 unit:nova-compute/0: hook.scheduler DEBUG: hook error, stopping scheduler execution
2013-05-06 21:03:25,949 unit:nova-compute/0: hook.scheduler INFO: stopped

我是否需要通过为OpenStack定义环境来对OpenStack的Juju环境文件进行一些补充？

为了解决上述问题，我尝试在另一个系统上使用DNS服务器，而不是使用/etc/hosts解析DNS名称。

我在这台新服务器上配置的域名是"malik.net“。名称解析很好，但是juju针对每个节点的已安装服务分配了不同的公共地址。例如，juju-状态报告：public-address: node-aab2ccddeeff.localdomain，而应该是public-address: node-aab2ccddeeff.malik.net。

节点不识别由juju创建的公共地址。然后，通过编写节点IP和/etc/hosts，我不得不在每个节点上输入each_node_name.localdomain条目。我遇到了同样的关系错误问题。

通过告诉Juju使用正确的域名可能会解决这个问题，但我不知道如何解决这个问题。

Answer 1

nova计算魅力取决于DNS对IP地址的解析；OpenStack中的几个函数依赖IP地址而不是主机名，该功能包括直接查询DNS以解析主机名-> IP地址的代码。

不幸的是，在股票云上使用/etc/hosts init构建的实例总是会导致主机名-> IP地址映射到127.0.1.1 --除了本地访问之外，这并没有多大用处。

我鼓励您启动并运行DNS；我不认为这是一个疯狂的假设，即DNS在魅力执行环境中具有功能。