Unable to approve the RHEV host from the RHEV manager

Issue

• Trying to add a RHEV Hypervisor 6.2 to a RHEV-Manager (rhevm-3.0.3);
• Getting the following errors while doing so:

From /var/log/rhevm.log:

2012-05-18 08:10:36,143 ERROR [org.ovirt.engine.core.bll.GetoVirtISOsQuery] (http-0.0.0.0-8443-1) ovirt ISOs directory not found. Search in: /usr/share/rhev-hypervisor
..
2012-05-18 11:08:41,608 ERROR [org.ovirt.engine.core.vdsbroker.ResourceManager] (pool-19-thread-48) Cannot get vdsManager for vdsid=5a9fdd1c-a0fb-11e1-b64c-0018fe727668
2012-05-18 11:08:41,608 INFO  [org.ovirt.engine.core.vdsbroker.RemoveVdsVDSCommand] (pool-19-thread-48) START, RemoveVdsVDSCommand(vdsId = 5a9fdd1c-a0fb-11e1-b64c-0018fe7276
68), log id: 2a9f7b13
2012-05-18 11:08:41,608 ERROR [org.ovirt.engine.core.vdsbroker.ResourceManager] (pool-19-thread-48) Cannot get vdsManager for vdsid=5a9fdd1c-a0fb-11e1-b64c-0018fe727668
2012-05-18 11:08:41,608 INFO  [org.ovirt.engine.core.vdsbroker.RemoveVdsVDSCommand] (pool-19-thread-48) FINISH, RemoveVdsVDSCommand, log id: 2a9f7b13
2012-05-18 11:08:41,609 ERROR [org.ovirt.engine.core.vdsbroker.ResourceManager] (pool-19-thread-48) Cannot get vdsManager for vdsid=5a9fdd1c-a0fb-11e1-b64c-0018fe727668

From /var/log/vdsm/vdsm/log of host:

MainThread::INFO::2012-05-18 16:34:28,755::vdsm::76::vds::(run) VDSM main thread ended. Waiting for 1 other threads...
MainThread::INFO::2012-05-18 16:34:28,755::vdsm::79::vds::(run) <_MainThread(MainThread, started 140347089434368)>
MainThread::INFO::2012-05-18 16:34:28,755::vdsm::79::vds::(run) <Thread(libvirtEventLoop, started daemon 140346877949696)>
MainThread::INFO::2012-05-18 16:34:28,818::vdsm::71::vds::(run) I am the actual vdsm 4.9-112.1
MainThread::ERROR::2012-05-18 16:34:28,967::vdsm::74::vds::(run) Traceback (most recent call last):
  File "/usr/share/vdsm//vdsm", line 72, in run
    serve_clients(log)
  File "/usr/share/vdsm//vdsm", line 40, in serve_clients
    cif = clientIF.clientIF(log)
  File "/usr/share/vdsm/clientIF.py", line 92, in __init__
  File "/usr/share/vdsm/libvirtconnection.py", line 94, in get
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 102, in openAuth
libvirtError: authentication failed: authentication failed

From /var/log/messages of this host:

May 18 16:34:28 fitbir-dsd-vhost1 respawn: slave '/usr/share/vdsm//vdsm' died too quickly, respawning slave
May 18 16:34:29 fitbir-dsd-vhost1 respawn: slave '/usr/share/vdsm//vdsm' died too quickly for more than 30 seconds, master sleeping for 900 seconds

• Also if trying to start/restart the vdsmd daemon manually, getting the following error:

# /etc/init.d/vdsmd start
vdsm: Missing certificates, vdsm not registered [FAILED]
Starting iscsid:
Starting up vdsm daemon:
vdsm start [ OK ]