I think I have now tried everything. 
I saw that ova imports were failing with java.lang.NullPointerException in engine.log.
It seemed to be a bug corrected in 4.3.9 as per release note : https://bugzilla.redhat.com/show_bug.cgi?id=1789737
I upgraded ovirt-manager to 4.3.10 and used a hosts on ovirt-node 4.3.10 to retry ova template import but it is still failing with : 

2021-06-16 16:05:58,336+02 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.GetVmsInfoVDSCommand] (default task-7) [7d957966-65f5-4a81-b1a1-f3a7e41c9db8] START, GetVmsInfoVDSCommand( GetVmsInfoVDSCommandParameters:{storagePoolId='d9118020-3ce3-11e9-989d-00163e79db10', ignoreFailoverLimit='false', storageDomainId='b0f2bae9-1602-45a4-b527-8020e1a24a43', vmIdList='null'}), log id: 76eed3f5
2021-06-16 16:05:58,351+02 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.GetVmsInfoVDSCommand] (default task-7) [7d957966-65f5-4a81-b1a1-f3a7e41c9db8] FINISH, GetVmsInfoVDSCommand, log id: 76eed3f5
2021-06-16 16:06:05,248+02 INFO  [org.ovirt.engine.core.common.utils.ansible.AnsibleExecutor] (default task-7) [bf07d4fe-7fd1-4787-a84b-8de59ecdd758] Executing Ansible command: ANSIBLE_STDOUT_CALLBACK=ovaqueryplugin /usr/bin/ansible-playbook --ssh-common-args=-F /var/lib/ovirt-engine/.ssh/config --private-key=/etc/pki/ovirt-engine/keys/engine_id_rsa --inventory=/tmp/ansible-inventory2288790033435520844 --extra-vars=ovirt_query_ova_path="/root/ovaexports" --extra-vars=list_directory="True" --extra-vars=entity_type="template" /usr/share/ovirt-engine/playbooks/ovirt-ova-query.yml [Logfile: /var/log/ovirt-engine/ova/ovirt-query-ova-ansible-20210616160605-ps-inf-int-kvm-fr-308-210.hostics.fr.log]
2021-06-16 16:06:10,369+02 INFO  [org.ovirt.engine.core.common.utils.ansible.AnsibleExecutor] (default task-7) [bf07d4fe-7fd1-4787-a84b-8de59ecdd758] Ansible playbook command has exited with value: 0
2021-06-16 16:06:39,449+02 ERROR [org.ovirt.engine.core.bll.CommandsFactory] (default task-7) [da051efc-4a1c-4146-b26e-a5419b69781b] An exception has occurred while trying to create a command object for command 'ImportVmTemplateFromOva' with parameters 'ImportVmTemplateFromOvaParameters:{commandId='a4e405b1-024b-4a42-a67c-986611fda292', user='null', commandType='Unknown'}': WELD-000049: Unable to invoke protected final void org.ovirt.engine.core.bll.CommandBase.postConstruct() on org.ovirt.engine.core.bll.exportimport.ImportVmTemplateFromOvaCommand@124e9537
2021-06-16 16:06:39,450+02 ERROR [org.ovirt.engine.core.bll.CommandsFactory] (default task-7) [da051efc-4a1c-4146-b26e-a5419b69781b] Exception: java.lang.IllegalArgumentException: VM64BitMaxMemorySizeInMB has no value for version: 4.6
at org.ovirt.engine.core.dal.dbbroker.generic.DBConfigUtils.getValue(DBConfigUtils.java:161) [dal.jar:]
at org.ovirt.engine.core.common.config.Config.getValue(Config.java:28) [common.jar:]
at org.ovirt.engine.core.common.utils.VmCommonUtils.maxMemorySizeWithHotplugInMb(VmCommonUtils.java:72) [common.jar:]
at org.ovirt.engine.core.bll.VmHandler.updateMaxMemorySize(VmHandler.java:1319) [bll.jar:]
at org.ovirt.engine.core.bll.VmHandler$Proxy$_$$_WeldClientProxy.updateMaxMemorySize(Unknown Source) [bll.jar:]
at org.ovirt.engine.core.bll.exportimport.ImportVmTemplateCommandBase.init(ImportVmTemplateCommandBase.java:89) [bll.jar:]
at org.ovirt.engine.core.bll.CommandBase.postConstruct(CommandBase.java:219) [bll.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_292]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.invokeMethods(DefaultLifecycleCallbackInvoker.java:83) [weld-core-impl-3.1.1.Final.jar:3.1.1.Final]
at org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.postConstruct(DefaultLifecycleCallbackInvoker.java:66) [weld-core-impl-3.1.1.Final.jar:3.1.1.Final]
at org.jboss.weld.injection.producer.BasicInjectionTarget.postConstruct(BasicInjectionTarget.java:122) [weld-core-impl-3.1.1.Final.jar:3.1.1.Final]
at org.ovirt.engine.core.di.Injector.injectMembers(Injector.java:41) [vdsbroker.jar:]
at org.ovirt.engine.core.bll.CommandsFactory.createCommand(CommandsFactory.java:102) [bll.jar:]
at org.ovirt.engine.core.bll.CommandsFactory.createCommand(CommandsFactory.java:83) [bll.jar:]
at org.ovirt.engine.core.bll.NestedCommandFactory.createWrappedCommand(NestedCommandFactory.java:23) [bll.jar:]
at org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.initCommandsAndReturnValues(PrevalidatingMultipleActionsRunner.java:91) [bll.jar:]
at org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.execute(PrevalidatingMultipleActionsRunner.java:74) [bll.jar:]
at org.ovirt.engine.core.bll.Backend.runMultipleActionsImpl(Backend.java:579) [bll.jar:]
at org.ovirt.engine.core.bll.Backend.runMultipleActions(Backend.java:549) [bll.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_292]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.delegateInterception(Jsr299BindingsInterceptor.java:79)
at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:89)
at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:102)
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
at org.ovirt.engine.core.bll.interceptors.CorrelationIdTrackerInterceptor.aroundInvoke(CorrelationIdTrackerInterceptor.java:13) [bll.jar:]
at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source) [:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptor.java:89)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45) [wildfly-ee-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:40)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:53)
at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:52)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:216) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:418) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:148) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
at org.jboss.weld.module.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:81) [weld-ejb-3.1.1.Final.jar:3.1.1.Final]
at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:89)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:47) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:100) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.deployment.processors.StartupAwaitInterceptor.processInvocation(StartupAwaitInterceptor.java:22) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:67) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:60)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:438)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:618)
at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:57)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:53)
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:198)
at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:185)
at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:81)
at org.ovirt.engine.core.common.interfaces.BackendLocal$$$view3.runMultipleActions(Unknown Source) [common.jar:]
at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.runMultipleActions(GenericApiGWTServiceImpl.java:161)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_292]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:587)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:333)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:303)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:373)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:706) [jboss-servlet-api_4.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.service(GenericApiGWTServiceImpl.java:78)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:791) [jboss-servlet-api_4.0_spec-1.0.0.Final.jar:1.0.0.Final]
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at org.ovirt.engine.core.utils.servlet.HeaderFilter.doFilter(HeaderFilter.java:94) [utils.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.ovirt.engine.core.utils.servlet.CachingFilter.doFilter(CachingFilter.java:133) [utils.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.ovirt.engine.core.branding.BrandingFilter.doFilter(BrandingFilter.java:73) [branding.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.ovirt.engine.core.utils.servlet.LocaleFilter.doFilter(LocaleFilter.java:65) [utils.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:364)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_292]

2021-06-16 16:06:39,461+02 ERROR [org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner] (default task-7) [da051efc-4a1c-4146-b26e-a5419b69781b] Failed to execute multiple actions of type 'ImportVmTemplateFromOva': null
2021-06-16 16:06:39,461+02 ERROR [org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner] (default task-7) [da051efc-4a1c-4146-b26e-a5419b69781b] Exception: java.lang.NullPointerException
at org.ovirt.engine.core.bll.NestedCommandFactory.createWrappedCommand(NestedCommandFactory.java:24) [bll.jar:]
at org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.initCommandsAndReturnValues(PrevalidatingMultipleActionsRunner.java:91) [bll.jar:]
at org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.execute(PrevalidatingMultipleActionsRunner.java:74) [bll.jar:]
at org.ovirt.engine.core.bll.Backend.runMultipleActionsImpl(Backend.java:579) [bll.jar:]
at org.ovirt.engine.core.bll.Backend.runMultipleActions(Backend.java:549) [bll.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_292]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.delegateInterception(Jsr299BindingsInterceptor.java:79)
at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:89)
at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:102)
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
at org.ovirt.engine.core.bll.interceptors.CorrelationIdTrackerInterceptor.aroundInvoke(CorrelationIdTrackerInterceptor.java:13) [bll.jar:]
at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source) [:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptor.java:89)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45) [wildfly-ee-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:40)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:53)
at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:52)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:216) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:418) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:148) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
at org.jboss.weld.module.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:81) [weld-ejb-3.1.1.Final.jar:3.1.1.Final]
at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:89)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:47) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:100) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.deployment.processors.StartupAwaitInterceptor.processInvocation(StartupAwaitInterceptor.java:22) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:67) [wildfly-ejb3-17.0.1.Final.jar:17.0.1.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:60)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:438)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:618)
at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:57)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:53)
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:198)
at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:185)
at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:81)
at org.ovirt.engine.core.common.interfaces.BackendLocal$$$view3.runMultipleActions(Unknown Source) [common.jar:]
at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.runMultipleActions(GenericApiGWTServiceImpl.java:161)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_292]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_292]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_292]
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:587)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:333)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:303)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:373)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:706) [jboss-servlet-api_4.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.service(GenericApiGWTServiceImpl.java:78)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:791) [jboss-servlet-api_4.0_spec-1.0.0.Final.jar:1.0.0.Final]
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at org.ovirt.engine.core.utils.servlet.HeaderFilter.doFilter(HeaderFilter.java:94) [utils.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.ovirt.engine.core.utils.servlet.CachingFilter.doFilter(CachingFilter.java:133) [utils.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.ovirt.engine.core.branding.BrandingFilter.doFilter(BrandingFilter.java:73) [branding.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.ovirt.engine.core.utils.servlet.LocaleFilter.doFilter(LocaleFilter.java:65) [utils.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1502)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:364)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_292]




Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group


On Wed, Jun 16, 2021 at 7:40 PM Guillaume Pavese <guillaume.pavese@interactiv-group.com> wrote:
As noted, the import through Export Domain fails with "General command validation failure."

In engine.log, I see : 
2021-06-16 12:37:48,736+02 ERROR [org.ovirt.engine.core.bll.exportimport.ImportVmCommand] (default task-1939) [c865f249-d658-4e67-9813-bedd06e5d4d3] Error during ValidateFailure.: java.lang.IllegalArgumentExcepti
on: VM64BitMaxMemorySizeInMB has no value for version: 4.6

Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group


On Wed, Jun 16, 2021 at 4:54 PM Guillaume Pavese <guillaume.pavese@interactiv-group.com> wrote:
OVA imports, template or vm, silently fail like with Export Domain imports.
Could it be because of the Cluster compatibility version set to 4.6 on both VM & template I am trying to import? 
On the origin oVirt 4.4.6 DC, before exporting them, I tried to see if I could set them to a lower compatibility version but only 4.6is available

Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group


On Tue, Jun 15, 2021 at 8:11 PM Guillaume Pavese <guillaume.pavese@interactiv-group.com> wrote:
On ovirt 4.4.6, I created a VM and made a template from it.
I would like to copy them to oVirt 4.3.7 & 4.3.10 DCs

- I saw that Export Domain is deprecated. I tried exporting the VM & template to an Export Domain anyway but,
after attaching the Export DOmain on my ovirt 4.3.7 DC, both VM and Template imports failed.
The Template import failed immediately without any errors visible in the UI, 
The VM import failed with the message "General command validation failure."

- I tried to do it through a Data Domains as recommended, but:
If created on oVirt 4.4.6, I get a Format V5 DataDomain that my oVirt 4.3.7 refuses to import.
If created first on the oVirt 4.3 DC, I get a Format V4 Domain. But then importing it on the oVirt 4.4 DC, I get the message: "Approving this operation will upgrade the Storage Domain format from 'V4' to 'V5'. Note that you will not be able to attach it back to an older Data Center."

In "Administration > Providers" everything seems supported, from XEN / KVM and even VMware (we have used all three with some success).
However oVirt is the obvious missing option...

I still have to try "Export as OVA",
is that the only supported way?

Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group

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