We recently had a network event where we lost access to our storage for a period of time. The Cluster basically shut down all our VM's and in the process we had three HV's that went offline and would not communicate properly with the cluster.
We have since completely reinstalled CentOS on the hosts and attempted to install them into the cluster with no joy. We've gotten to the point where we generally get an error message in the web gui:
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: libvirt: XML-RPC error : authentication failed: authentication failed
Feb 16 11:39:53 hv-ausa-02 libvirtd: 2018-02-16 16:39:53.761+0000: 15231: error : virNetSASLSessionListMechanisms:390 : internal error: cannot list SASL mechanisms -4 (SASL(-4): no mechanism available: Internal Error -4 in server.c near line 1757)
Feb 16 11:39:53 hv-ausa-02 libvirtd: 2018-02-16 16:39:53.761+0000: 15231: error : remoteDispatchAuthSaslInit:3411 : authentication failed: authentication failed
Feb 16 11:39:53 hv-ausa-02 libvirtd: 2018-02-16 16:39:53.761+0000: 15226: error : virNetSocketReadWire:1808 : End of file while reading data: Input/output error
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: libvirt: XML-RPC error : authentication failed: authentication failed
Feb 16 11:39:53 hv-ausa-02 libvirtd: 2018-02-16 16:39:53.962+0000: 15233: error : virNetSASLSessionListMechanisms:390 : internal error: cannot list SASL mechanisms -4 (SASL(-4): no mechanism available: Internal Error -4 in server.c near line 1757)
Feb 16 11:39:53 hv-ausa-02 libvirtd: 2018-02-16 16:39:53.963+0000: 15233: error : remoteDispatchAuthSaslInit:3411 : authentication failed: authentication failed
Feb 16 11:39:53 hv-ausa-02 libvirtd: 2018-02-16 16:39:53.963+0000: 15226: error : virNetSocketReadWire:1808 : End of file while reading data: Input/output error
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: libvirt: XML-RPC error : authentication failed: authentication failed
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: Traceback (most recent call last):
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/bin/vdsm-tool", line 219, in main
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: return tool_command[cmd]["command"](*args)
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/tool/upgrade_300_networks.py", line 83, in upgrade_networks
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: networks = netinfo.networks()
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/netinfo.py", line 112, in networks
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: conn = libvirtconnection.get()
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 159, in get
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: conn = _open_qemu_connection()
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 95, in _open_qemu_connection
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: return utils.retry(libvirtOpen, timeout=10, sleep=0.2)
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 1108, in retry
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: return func()
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: File "/usr/lib64/python2.7/site-packages/libvirt.py", line 105, in openAuth
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: if ret is None:raise libvirtError('virConnectOpenAuth() failed')
Feb 16 11:39:53 hv-ausa-02 vdsm-tool: libvirtError: authentication failed: authentication failed
Feb 16 11:39:53 hv-ausa-02 systemd: vdsm-network.service: control process exited, code=exited status=1
Feb 16 11:39:53 hv-ausa-02 systemd: Failed to start Virtual Desktop Server Manager network restoration.
Feb 16 11:39:53 hv-ausa-02 systemd: Dependency failed for Virtual Desktop Server Manager.
Feb 16 11:39:53 hv-ausa-02 systemd: Job vdsmd.service/start failed with result 'dependency'.
Feb 16 11:39:53 hv-ausa-02 systemd: Unit vdsm-network.service entered failed state.
Feb 16 11:39:53 hv-ausa-02 systemd: vdsm-network.service failed.
Feb 16 11:40:01 hv-ausa-02 systemd: Started Session 10 of user root.
Feb 16 11:40:01 hv-ausa-02 systemd: Starting Session 10 of user root.
Feb 16 11:40:01 hv-ausa-02 systemd: Started Session 11 of user root.
Feb 16 11:40:01 hv-ausa-02 systemd: Starting Session 11 of user root.
Can someone point me in the right direction to resolve this - it seems to be a SASL issue perhaps?