Openstack Rocky 版本在检索实例和连接到 VM 时面临问题答案

【问题标题】：Facing issue with Openstack Rocky version in retrieving the instances and connecting to VM'sOpenstack Rocky 版本在检索实例和连接到 VM 时面临问题
【发布时间】：2021-09-09 07:01:42
【问题描述】：

Openstack（Rocky 版本）在检索实例时面临问题，即 无法检索实例时出错以及连接到 VM 时。错误地，我们在控制器机器上运行了apt upgrade。系统升级会成为 OpenStack 故障的原因吗？此外，当我们检查计算节点中 neutron-openvswitch-agent 的状态并看到以下日志时：

root@compute-I:/home/user# systemctl status neutron-openvswitch-agent

● neutron-openvswitch-agent.service - Openstack Neutron Open vSwitch Plugin Agent
  Loaded: loaded (/lib/systemd/system/neutron-openvswitch-agent.service; enabled; vendor preset: enabled)

  **Active: active (running)** since Tue 2021-09-07 20:42:39 IST; 43s ago

 Process: 13632 ExecStartPre=/sbin/modprobe br_netfilter (code=exited, status=0/SUCCESS)
 Process: 13631 ExecStartPre=/bin/chown neutron:neutron /var/lock/neutron /var/log/neutron /var/lib/neutron (code=exited, status=0/SUCCESS)
 Process: 13630 ExecStartPre=/bin/mkdir -p /var/lock/neutron /var/log/neutron /var/lib/neutron (code=exited, status=0/SUCCESS)
Main PID: 13633 (neutron-openvsw)
   Tasks: 3 (limit: 22118)
  CGroup: /system.slice/neutron-openvswitch-agent.service
          ├─13633 /usr/bin/python2.7 /usr/bin/neutron-openvswitch-agent --config-file=/etc/neutron/neutron.conf --config-file=/etc/neutron/plugins/ml2/openvswitch_age
          ├─13651 ovsdb-client monitor tcp:127.0.0.1:6640 Interface name,ofport,external_ids --format=json
          └─13656 ovsdb-client monitor tcp:127.0.0.1:6640 Bridge name --format=json

Sep 07 20:42:41 compute-I ovs-vsctl[13650]: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=5 --id=@manager -- create Manager "target=\"ptcp:6640:127.0.0.1

**Sep 07 20:42:41 compute-I ovs-vsctl[13650]: ovs|00002|ovsdb_idl|WARN|transaction error: {"details":"Transaction causes multiple rows in \"Manager\" table to have ident**

Sep 07 20:42:41 compute-I ovs-vsctl[13650]: ovs|00003|db_ctl_base|ERR|transaction error: {"details":"Transaction causes multiple rows in \"Manager\" table to have iden

Sep 07 20:42:41 compute-I sudo[13647]: pam_unix(sudo:session): session closed for user root

Sep 07 20:42:41 compute-I sudo[13652]:  neutron : TTY=unknown ; PWD=/var/lib/neutron ; USER=root ; COMMAND=/usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf ovs-vsc

Sep 07 20:42:41 compute-I sudo[13652]: pam_unix(sudo:session): session opened for user root by (uid=0)

Sep 07 20:42:41 compute-I ovs-vsctl[13655]: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=5 --id=@manager -- create Manager "target=\"ptcp:6640:127.0.0.1

Sep 07 20:42:41 compute-I ovs-vsctl[13655]: ovs|00002|ovsdb_idl|WARN|transaction error: {"details":"Transaction causes multiple rows in \"Manager\" table to have ident

Sep 07 20:42:41 compute-I ovs-vsctl[13655]: ovs|00003|db_ctl_base|ERR|transaction error: {"details":"Transaction causes multiple rows in \"Manager\" table to have iden

Sep 07 20:42:41 compute-I sudo[13652]: pam_unix(sudo:session): session closed for user root

【问题讨论】：

标签： openstack

【解决方案1】：

在这种情况下，问题在于中子服务。我们按照链接页面末尾给出的完成安装步骤进行操作： https://docs.openstack.org/neutron/rocky/install/controller-install-ubuntu.html 并且可以解决问题。运行这些步骤后，我们可以在仪表板上看到我们的实例。

【讨论】：