Yes the host is up.
Please see below

[root@host3 ~]# tail 50 /var/log/ovirt-engine/engine.log
tail: cannot open `50' for reading: No such file or directory
==> /var/log/ovirt-engine/engine.log <==
2014-05-26 12:29:18,886 INFO  [org.ovirt.engine.core.vdsbroker.CreateVmVDSCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] START, CreateVmVDSCommand(HostName = HOST2.247CLUSTERS.COM, HostId = 905d89cd-158a-4b1b-bea5-c6c3180e71f1, vmId=aaca739d-dea0-4b17-a088-36bd3b8ab4a4, vm=VM [VM1]), log id: 302deca2
2014-05-26 12:29:18,905 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateVDSCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] START, CreateVDSCommand(HostName = HOST2.247CLUSTERS.COM, HostId = 905d89cd-158a-4b1b-bea5-c6c3180e71f1, vmId=aaca739d-dea0-4b17-a088-36bd3b8ab4a4, vm=VM [VM1]), log id: 4853232e
2014-05-26 12:29:18,912 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateVDSCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] Command CreateVDSCommand(HostName = HOST2.247CLUSTERS.COM, HostId = 905d89cd-158a-4b1b-bea5-c6c3180e71f1, vmId=aaca739d-dea0-4b17-a088-36bd3b8ab4a4, vm=VM [VM1]) execution failed. Exception: VDSNetworkException: org.apache.xmlrpc.common.XmlRpcExtensionException: Null values aren't supported, if isEnabledForExtensions() == false
2014-05-26 12:29:18,914 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateVDSCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] FINISH, CreateVDSCommand, log id: 4853232e
2014-05-26 12:29:18,914 ERROR [org.ovirt.engine.core.vdsbroker.CreateVmVDSCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] VDS::create Failed creating vm VM1 in vds = 905d89cd-158a-4b1b-bea5-c6c3180e71f1 : HOST2.247CLUSTERS.COM error = org.ovirt.engine.core.vdsbroker.vdsbroker.VDSNetworkException: org.apache.xmlrpc.common.XmlRpcExtensionException: Null values aren't supported, if isEnabledForExtensions() == false
2014-05-26 12:29:18,915 INFO  [org.ovirt.engine.core.vdsbroker.CreateVmVDSCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] FINISH, CreateVmVDSCommand, return: Down, log id: 302deca2
2014-05-26 12:29:18,915 INFO  [org.ovirt.engine.core.bll.RunVmOnceCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] Lock freed to object EngineLock [exclusiveLocks= key: aaca739d-dea0-4b17-a088-36bd3b8ab4a4 value: VM
, sharedLocks= ]
2014-05-26 12:29:18,916 ERROR [org.ovirt.engine.core.bll.RunVmOnceCommand] (ajp--127.0.0.1-8702-1) [1ffd0b64] Command org.ovirt.engine.core.bll.RunVmOnceCommand throw Vdc Bll exception. With error message VdcBLLException: org.ovirt.engine.core.vdsbroker.vdsbroker.VDSNetworkException: org.apache.xmlrpc.common.XmlRpcExtensionException: Null values aren't supported, if isEnabledForExtensions() == false (Failed with error VDS_NETWORK_ERROR and code 5022)
2014-05-26 12:29:18,938 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ajp--127.0.0.1-8702-1) [1ffd0b64] Correlation ID: 1ffd0b64, Job ID: 10b543cd-f174-46a3-9578-d7ed2ba88d3e, Call Stack: null, Custom Event ID: -1, Message: Failed to run VM VM1 (User: admin).