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Accepted
Athafoud
Asked: 2015-03-24 02:37:38 +0800 CST

nova-compute strart 上的错误 - libvirt：无法将套接字连接到“/var/run/libvirt/libvirt-sock”：没有这样的文件或目录

  • 772

任何启动 nova 计算服务的尝试都失败并出现错误HypervisorUnavailable: Connection to the hypervisor is broken on host:

跟踪日志如下（取自/var/log/nova/nova-compute.log ）

AUDIT nova.service [-] Starting compute node (version 2014.1.1)
ERROR nova.virt.libvirt.driver [-] Connection to libvirt failed: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory
TRACE nova.virt.libvirt.driver Traceback (most recent call last):
TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 787, in _connect
TRACE nova.virt.libvirt.driver     libvirt.openAuth, uri, auth, flags)
TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 139, in proxy_call
TRACE nova.virt.libvirt.driver     rv = execute(f,*args,**kwargs)
TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 77, in tworker
TRACE nova.virt.libvirt.driver     rv = meth(*args,**kwargs)
TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 105, in openAuth
TRACE nova.virt.libvirt.driver     if ret is None:raise libvirtError('virConnectOpenAuth() failed')
TRACE nova.virt.libvirt.driver libvirtError: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory
TRACE nova.virt.libvirt.driver
ERROR nova.openstack.common.threadgroup [-] Connection to the hypervisor is broken on host: <HOST_NAME>
TRACE nova.openstack.common.threadgroup Traceback (most recent call last):
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/threadgroup.py", line 117, in wait
TRACE nova.openstack.common.threadgroup     x.wait()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/threadgroup.py", line 49, in wait
TRACE nova.openstack.common.threadgroup     return self.thread.wait()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 168, in wait
TRACE nova.openstack.common.threadgroup     return self._exit_event.wait()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
TRACE nova.openstack.common.threadgroup     return hubs.get_hub().switch()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 187, in switch
TRACE nova.openstack.common.threadgroup     return self.greenlet.switch()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 194, in main
TRACE nova.openstack.common.threadgroup     result = function(*args, **kwargs)
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/service.py", line 483, in run_service
TRACE nova.openstack.common.threadgroup     service.start()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 163, in start
TRACE nova.openstack.common.threadgroup     self.manager.init_host()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1006, in init_host
TRACE nova.openstack.common.threadgroup     self.driver.init_host(host=self.host)
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 656, in init_host
TRACE nova.openstack.common.threadgroup     self._do_quality_warnings()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 639, in _do_quality_warnings
 TRACE nova.openstack.common.threadgroup     caps = self.get_host_capabilities()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2849, in get_host_capabilities
TRACE nova.openstack.common.threadgroup     xmlstr = self._conn.getCapabilities()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 721, in _get_connection
TRACE nova.openstack.common.threadgroup     wrapped_conn = self._get_new_connection()
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 674, in _get_new_connection
TRACE nova.openstack.common.threadgroup     wrapped_conn = self._connect(self.uri(), self.read_only)
TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 796, in _connect
TRACE nova.openstack.common.threadgroup     raise exception.HypervisorUnavailable(host=CONF.host)
TRACE nova.openstack.common.threadgroup HypervisorUnavailable: Connection to the hypervisor is broken on host: <HOST_NAME>

没有其他日志文件指示任何错误 syslog，dmesg也 /var/log/libvirt/libvirtd.log没有显示任何问题

libvirt 配置 ( /etc/libvirt/libvirtd.conf) 设置为记录错误 log_outputs="3:syslog:libvirtd"

在出现错误之前，节点运行平稳，没有进行任何更改。

openstack-nova

3 个回答

  1. 就我而言，我已经重新安装了 libvirt 和相关的软件包而没有重新启动libvirtd. 因此，使用以下三个命令解决了该错误： 

    systemctl stop libvirtd
systemctl start libvirtd
systemctl status libvirtd
    • 2
  2. Best Answer

    似乎这是libvirt. 简而言之，问题在于它libvirtd不是以--listenflag 开头，因此它没有创建 nova 服务正在搜索的适当 sock 文件。

    有关如何在“侦听”模式下配置 libvirt 的问题，请参阅我的相关答案。

    • 0

  3. 昨晚我尝试重新启动nova-compute服务时遇到了类似的情况。在您提供的 lpg 中，我们可以 se3 以下行

    无法将套接字连接到“/var/run/libvirt/libvirt-sock”：没有这样的文件或目录 TRACE nova.virt.libvirt.driver”

    所以我们可以知道问题是由于libvirtd服务不工作造成的。

    在我的情况下，我检查了libvirtd服务的状态以找出它失败的原因，然后我尝试重新启动它，如下所示

    在此处输入图像描述

    我用谷歌搜索了很多关于上面的问题（g-io-error-quark,1）。但是所有的结果都是关于 /etc/fstab 的问题。

    就我而言，我尝试使用该libvirtd -l命令来获取一些提示

    在此处输入图像描述

    终于我发现了！问题是关于/var/run路径 /run 的链接，并且链接失败。所以我将链接重置为 /run ，然后libvirtd成功重新启动服务。

    我希望这对你有用。

    • 0

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