hi!
 
I have caught a problem. hosted-engine unexpectedly stop working with error in log:
 
2017-11-14 01:47:02,628+09 ERROR [org.ovirt.engine.core.bll.InitBackendServicesOnStartupBean] (ServerService Thread Pool -- 54) [7ce64f75-6eee-4d8c-9693-521cf0c6cebb] Failed to initialize backend: org.jboss.weld.exceptions.WeldException: WELD-000049: Unable to invoke private void org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller.init()
 
I had tried to restore HE from a backup, but also unsucsessful: Failed to execute stage 'Setup validation': Hosted Engine setup detected, but Global Maintenance is not set.
 
this is incorrect error, because:
hosted-engine --vm-status | grep MAIN
!! Cluster is in GLOBAL MAINTENANCE mode !!
tell me please how it can be fixed? )