[ovirt-users] Error installing ovirt node

Dear All, I have Ovirt engine 4.2 and node version is 4.2. After installing node in in ovirt engine when i try to install node it gives following error 14:25:37,410+05 ERROR [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-19) [52669850] Host installation failed for host 'bd8d007a-be92-4075-bba9-6cbeb890a1e5', 'node_2': Command returned failure code 1 during SSH session 'root(a)192.168.20.20' 2018-02-27 14:25:37,416+05 INFO [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-19) [52669850] START, SetVdsStatusVDSCommand(HostName = node_2, SetVdsStatusVDSCommandParameters:{hostId='bd8d007a-be92-4075-bba9-6cbeb890a1e5', status='InstallFailed', nonOperationalReason='NONE', stopSpmFailureLogged='false', maintenanceReason='null'}), log id: 2b138e87 2018-02-27 14:25:37,423+05 INFO [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-19) [52669850] FINISH, SetVdsStatusVDSCommand, log id: 2b138e87 2018-02-27 14:25:37,429+05 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-19) [52669850] EVENT_ID: VDS_INSTALL_FAILED(505), Host node_2 installation failed. Command returned failure code 1 during SSH session 'root(a)192.168.20.20'. 2018-02-27 14:25:37,433+05 INFO [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-19) [52669850] Lock freed to object 'EngineLock:{exclusiveLocks='[bd8d007a-be92-4075-bba9-6cbeb890a1e5=VDS]', sharedLocks=''}' I have attached log file for your reference Please help me out.