<div dir="ltr"><div><div><div><div><div>Since I upgraded to 4.0.6-3 I&#39;ve been having problems with the UI<br><br>When I login the dash board presents a bunch of Operation Canceled dialogs,<br><br><br>! Operation canceled<br><br>Error while executing query: null<br><br><br><br>! Operation canceled<br><br>Error while executing action: A Request to the Server failed: java.lang.reflect.InvocationTargetException<br><br><br></div>The only error I see in engine.log is<br><br>2016-12-04 11:34:07,945 INFO  [org.ovirt.engine.docs.utils.servlet.ContextSensitiveHelpMappingServlet] (default task-1) [] Context-sensitive help is not installed. Manual directory doesn&#39;t exist: /usr/share/ovirt-engine/manual<br><br></div>Eventually after closing the error dialogs the dash board is displayed.<br><br></div>Most of the UI tabs then work normally, however &#39;Virtual Machines&#39; tab doesn&#39;t display any information, just the progress &#39;dots&#39; on the first line, it then cycles through the null query error dialogs.<br><br></div><div>This error also appeared in the log while I was writing this:<br><br>2016-12-04 11:40:09,276 INFO  [org.ovirt.engine.core.bll.EngineBackupAwarenessManager] (DefaultQuartzScheduler5) [7b442cfe] Backup check started.<br>2016-12-04 11:40:09,278 INFO  [org.ovirt.engine.core.bll.EngineBackupAwarenessManager] (DefaultQuartzScheduler5) [7b442cfe] Backup check completed.<br>2016-12-04 11:40:09,772 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.OvfDataUpdater] (DefaultQuartzScheduler3) [2701e060] Attempting to update VMs/Templates Ovf.<br>2016-12-04 11:40:09,774 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Before acquiring and wait lock &#39;EngineLock:{exclusiveLocks=&#39;[57fc8739-0039-00c7-0322-0000000001e5=&lt;OVF_UPDATE, ACTION_TYPE_FAILED_OBJECT_LOCKED&gt;]&#39;, sharedLocks=&#39;null&#39;}&#39;<br>2016-12-04 11:40:09,774 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Lock-wait acquired to object &#39;EngineLock:{exclusiveLocks=&#39;[57fc8739-0039-00c7-0322-0000000001e5=&lt;OVF_UPDATE, ACTION_TYPE_FAILED_OBJECT_LOCKED&gt;]&#39;, sharedLocks=&#39;null&#39;}&#39;<br>2016-12-04 11:40:09,775 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Running command: ProcessOvfUpdateForStoragePoolCommand internal: true. Entities affected :  ID: 57fc8739-0039-00c7-0322-0000000001e5 Type: StoragePool<br>2016-12-04 11:40:09,781 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Attempting to update VM OVFs in Data Center &#39;Default&#39;<br>2016-12-04 11:40:09,788 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Successfully updated VM OVFs in Data Center &#39;Default&#39;<br>2016-12-04 11:40:09,789 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Attempting to update template OVFs in Data Center &#39;Default&#39;<br>2016-12-04 11:40:09,790 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Successfully updated templates OVFs in Data Center &#39;Default&#39;<br>2016-12-04 11:40:09,790 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Attempting to remove unneeded template/vm OVFs in Data Center &#39;Default&#39;<br>2016-12-04 11:40:09,793 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Successfully removed unneeded template/vm OVFs in Data Center &#39;Default&#39;<br>2016-12-04 11:40:09,793 INFO  [org.ovirt.engine.core.bll.storage.ovfstore.ProcessOvfUpdateForStoragePoolCommand] (DefaultQuartzScheduler3) [5358e209] Lock freed to object &#39;EngineLock:{exclusiveLocks=&#39;[57fc8739-0039-00c7-0322-0000000001e5=&lt;OVF_UPDATE, ACTION_TYPE_FAILED_OBJECT_LOCKED&gt;]&#39;, sharedLocks=&#39;null&#39;}&#39;<br></div><div><br><br><br></div>If I restart the ovirt-engine process, the UI works for a while before the Operation Canceled dialogs start appearing again.<br><br></div>Any suggestions ?<br></div>