Good Morning; Thanks for the answers. I tried to put the cluster in maintenance, shutdown the hosted-engine and then a --vm-start, the hosted-engine started but after a few days the hosted-engine crashed again and there is no way to get it up. I have shut down machines in the hots to make sure it is not a lack of memory problem. But there is no way to turn it on. I have tried to turn it on from each of the hots (especially the one with the best score) but it turns on and off. Any more ideas; Do you know any tutorial or manual where this type of problem may appear. I have read red-hat virtualization manuals and ovirt manuals, but can't find anything. In the log / var / log / vdsm this error appears, it looks like a cpu problem, but I can't interpret it correctly. -------------------------------------------------- -------------------------------------------------- ------- 2021-04-14 10: 46: 00,856 + 0200 INFO (jsonrpc / 3) [api.virt] FINISH getStats return = {'status': {' message ':' Done ',' code ': 0},' statsList ': [{' status': 'Down', 'exitMessage': "internal error: qemu unexpectedly closed the monitor: 2021-04-14T08: 37: 18.376261Z qemu-kvm: warning: All CPU (s) up to maxcpus should be described in NUMA config, ability to start up with partial NUMA mappings is obsoleted and will be removed in future \ n2021-04-14T08: 37: 18.384137Z qemu-kvm: cannot set up guest memory 'pc.ram': Cannot allocate memory ", 'statusTime': '41000949110', 'vmId': 'c94c7a4b-adbd-4ee0-879d-8cb1f399bf90', 'exitReason': 1, 'exitCode': 1}]} from = :: 1,48086, vmId = c94c7a4b-adbd-4ee0-879d-8cb1f399bf90 (api: 54) 2021-04-14 10: 46: 00,857 + 0200 INFO (jsonrpc / 3) [jsonrpc.JsonRpcServer] RPC call VM.getStats succeeded in 0.00 seconds (__init __: 312) -------------------------------------------------- -------------------------------------------------- ------------ I am new at this. I appreciate your help and answers. All the best.