关于Cell的基本介绍，可以参考贤哥的一篇文章：

　　　　【OpenStack】G版中关于Nova的Cell  http://blog.csdn.net/lynn_kong/article/details/8564558

详细的代码分析，可以参考gaoxingnengjisuan的blog：

　　　　 OpenStack Nova-cell服务的源码解析（编者注：G版）http://blog.csdn.net/gaoxingnengjisuan/article/details/14216977

Cell的服务部署：

Cell的消息路由：

按照官方的推荐部署方案部署：即API Cell只部署nova-api，nova-cells服务，在Child Cell中部署除nova-api之外的全部cell服务（在本人的实际部署中，nova-compute单独部署在另一个节点）

在部署完nova-cells的服务之后，API cell上输入nova-manage service list，输出正常,但只显示本机的nova服务：
 
Binary           Host                                   Zone             Status     State Updated_At
nova-cells       API-cell                             internal         enabled    :-)   2014-04-04 09:57:47
 
在Child Cell 或nova-Compute节点上，输入nova-manage service list，输出也正常，但也只显示本Cell的nova服务：
 
Binary                   Host                                 Zone             Status     State Updated_At
nova-cert                Cell                                 internal         enabled    :-)   2014-04-04 10:00:11
nova-conductor       Cell                                 internal         enabled    :-)   2014-04-04 10:00:19
nova-consoleauth     Cell                                internal         enabled    :-)   2014-04-04 10:00:12
nova-scheduler        Cell                                 internal         enabled    :-)   2014-04-04 10:00:12
nova-cells               Cell                                 internal         enabled    :-)   2014-04-04 10:00:11
nova-compute     Computer3                         nova             enabled    :-)   2014-04-04 10:00:13
但是，在任意节点 终端输入 nova service-list 和 nova   host-list 命令将报错：

命令报错：

ERROR: Theserver has either erred or is incapable of performing the requested operation.(HTTP 500) (Request-ID: req-dfa169cf-db9e-44c6-b51b-0d80e4a89e3b)

跟踪 API Cell 节点的 nova-api.log, 输出如下错误信息：

2014-04-04 15:17:25.151 3172 ERROR nova.api.openstack [req-dfa169cf-db9e-44c6-b51b-0d80e4a89e3b 836609a159f244738933dc7c5cb6266a d965a

339b99a4d2da2be18bd0334b9ff] Caught error: invalid literal for int() with base 10: 'api!cell@1'

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack Traceback (most recent call last):

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/__init__.py", line 1

19, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return req.get_response(self.application)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1296, in send

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    application, catch_exc_info=False)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1260, in call_a

pplication

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    app_iter = application(self.environ, start_response)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return resp(environ, start_response)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py

", line 539, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return self.app(env, start_response)                               [26/1914]

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return resp(environ, start_response)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return resp(environ, start_response)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in __c

all__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    response = self.app(environ, start_response)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 144, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return resp(environ, start_response)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 130, in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     resp = self.call_func(req, *args, **self.kwargs)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 195, in call_func

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return self.func(req, *args, **kwargs)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line 938,

in __call__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    content_type, body, accept)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line 997,

in _process_stack

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    action_result = self.dispatch(meth, request, action_args)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/wsgi.py", line 1078,

 in dispatch

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return method(req=request, **action_args)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/serv

ices.py", line 139, in index

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    services = self._get_services_list(req, detailed)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/serv

ices.py", line 117, in _get_services_list

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    services = self._get_services(req)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/serv

ices.py", line 86, in _get_services

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    context, set_zones=True)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/compute/cells_api.py", line 469, in service_get_all

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    services)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/objects/base.py", line 606, in obj

_make_list

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    **extra_args)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/objects/service.py", line 67, in _

from_db_object

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    service[key] = db_service[key]

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/objects/base.py", line 405, in __s

etitem__

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack    setattr(self, name, value)

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack   File "/usr/lib/python2.7/dist-packages/nova/objects/base.py", line 66, in sett

er

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack     return setattr(self, get_attrname(name), typefn(value))

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack ValueError: invalid literal for int() with base 10: 'api!cell@1'

2014-04-04 15:17:25.151 3172 TRACE nova.api.openstack

2014-04-04 15:17:25.154 3172 INFO nova.api.openstack [req-dfa169cf-db9e-44c6-b51b-0d80e4a89e3b 836609a159f244738933dc7c5cb6266a d965a3

39b99a4d2da2be18bd0334b9ff] http://192.168.122.12:8774/v2/d965a339b99a4d2da2be18bd0334b9ff/os-services returned with HTTP 500

2014-04-04 15:17:25.155 3172 INFO nova.osapi_compute.wsgi.server [req-dfa169cf-db9e-44c6-b51b-0d80e4a89e3b 836609a159f244738933dc7c5cb

6266a d965a339b99a4d2da2be18bd0334b9ff] 192.168.122.14 "GET /v2/d965a339b99a4d2da2be18bd0334b9ff/os-services HTTP/1.1" status: 500 len

: 335 time: 0.1216350

后来查询了N久，发现社区已有人提出Bugs：https://bugs.launchpad.net/nova/+bug/1251043

并已解决：

　　Reviewed: https://review.openstack.org/81282
　　Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=0df94733f7283cbc1e9ae7d27f5cd443158cae8e

因为在Cell中，主机名的ID 前面加了一个前缀：cell routing path，所以格式为<cell routing path>@ID,而nova object模块里，会用一个int()的方法来将id的字符串变为整数，而int('api!cell@1')显然会报一个ValueError！

Patch 中给出的办法就是用一个代理类ServiceProxy，来处理附加在id前面的cell_paths，如下：

class ServiceProxy(object):

    def __init__(self, obj, cell_path):

        self._obj = obj

        self._cell_path = cell_path

    @property

    def id(self):

        return cells_utils.cell_with_item(self._cell_path, self._obj.id)

    def __getitem__(self, key):

        if key == 'id':

            return self.id

        return getattr(self._obj, key)

    def __getattr__(self, key):

        return getattr(self._obj, key)

目前，输入nova service-list，得到正常输出，返回各个节点的nova服务，问题解决：

在Openstack H版部署Nova Cell 时 ，终端输入nova service-list 和 nova host-list 命令将报错的更多相关文章

  1. docker 部署mysql tomcat时 在root@localhost~下——-——docker exec -it 容器名 /bin/bash 报错

    在docker部署mysql时 报错 找不到 容器不自动启动  , docker start 容器名  也没有效果 多次尝试发现 原因是创建容器时在 下面创建的 更改为下创建 问题解决

  2. openstack Q版部署-----nova服务配置-控制节点（5）

    一.创建数据库(控制节点) 创建数据库以及用户: CREATE DATABASE nova_api; CREATE DATABASE nova; CREATE DATABASE nova_cell0; ...

  3. OpenStack H版与 Ceph 整合的现状

    转自:https://www.ustack.com/blog/openstack_and_ceph/ Contents 1 Ceph与Nova整合 2 Ceph与Cinder整合 3 相关Patch ...

  4. openstack Q版部署-----Cinder云存储服务（10）

    一.cinder介绍 一般 cinder-api 和 cinder-scheduler 安装在控制节点上, cinder-volume 安装在存储节点上. 二.数据库配置 # 在任意控制节点创建数据库 ...

  5. openstack Q版部署-----网络服务（neutron）安装部署（7）

    一.数据库配置(控制节点) 控制节点创建数据库: CREATE DATABASE neutron; GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'lo ...

  6. openstack Q版部署-----安装报错问题

    1.实例开机提示找不到磁盘Booting from Hard Disk... GRUB. 开启 CPU 虚拟化支持. 将计算节点 nova.conf 配置修改如下即可: [libvirt] cpu_m ...

  7. docker-compose exec时 出现"fork/exec /proc/self/exe: no such file or directory" 报错

    问题:跟往常一样执行docker-compos exec redis sh时出现如下错误,而容器是运行状态中. # docker-compose exec redis sh rpc error: co ...

  8. Dubbo+zookeeper部署到tomcat上注意事项，遇到的问题，闪退，运行报错等

    需要下载工具zookeeper-3.4.14.tar.gz,dubbo-2.5.x.zip,apache-tomcat-8.5.47-windows-x64.zip这些官网都可以先下载到 1.最新的z ...

  9. openstack Q版部署-----nova服务配置-计算节点（6）

    一.服务安装(计算节点) 安装软件: yum install openstack-nova-compute -y 编辑/etc/nova/nova.conf文件并设置如下内容: [DEFAULT] e ...

随机推荐

  1. iOS navigationBar导航栏底部与self.view的分界线的隐藏

    ios开发中经常碰到各种需求,比如要求导航栏的颜色和self.view的颜色一样,当我们直接设置navigationBar的颜色和view一样时,我们会发现navigationBar还会有一条分割线留 ...

  2. CSS 伪元素

    CSS伪元素是用来添加一些选择器的特殊效果. 语法 伪元素的语法: selector:pseudo-element {property:value;} CSS类也可以使用伪元素: selector.c ...

  3. MVC权限模块

    设计方向: 1.摒弃SiteMap,避免在容易书写错误的sitemap中书写,导航在controller和action上打标签生成. 2.controller统一继承basecontroller,在b ...

  4. Köln-keith jarrett

    在火车上遇到一男生,带着他弟弟.他弟弟跑来跑去的,他就安稳地坐在下铺看书,不知道是哪种语言. 我们都是在北京下车. 第二天在王府井吃饭,姐姐带我吃西餐.我又看到他,跟一个阿姨一起吃饭. 吃饭的时候姐姐 ...

  5. ES 必备插件的安装

    1. elasticsearch-head插件的安装,非常好的插件 elasticsearch-head是一个elasticsearch的集群管理工具,它是完全由html5编写的独立网页程序,你可以通 ...

  6. jQuery.ajax() datatype:“json" 转换失败

    当使用jQuery.ajax() 时,如果设置dataType:"json",如果返回的字符转换出错则不会调用success方法,而进入error方法,控制台中也不会出现错误信息 ...

  7. quick-x 计时器的写法

    local scheduler = require("framework.scheduler") --计时器 function MainScene:recoderTime() pr ...

  8. C语言变量声明加冒号的用法

    有些信息在存储时,并不需要占用一个完整的字节, 而只需占几个或一个二进制位.例如在存放一个开关量时,只有0和1 两种状态, 用一位二进位即可.为了节省存储空间,并使处理简便,C语言又提供了一种数据结构 ...

  9. WPF扩展标记

    标记扩展和 WPF XAML,标记扩展是 XAML 语言以及 XAML 服务的 .NET 实现的常规功能 XAML 处理器和标记扩展 XAML 分析器可将特性值解释为可转换成基元的文本字符串,或可通过 ...

  10. C++11老关键字的新含义(auto, using，extern)

    http://blog.csdn.net/cnsword/article/details/8034947 公司可以使用c++11.看大牛的代码模仿使用,所以现在已经不知道什么使用的是c++的语法还是c ...