Code: October 2017

[oneadmin@opennebula-250 ~]$ onehost list
  ID NAME            CLUSTER   RVM      ALLOCATED_CPU      ALLOCATED_MEM STAT
   0 opennebula-250  default     7  1400 / 3200 (43%)  38G / 62.4G (60%) err
[oneadmin@opennebula-250 ~]$ onehost show 0
HOST 0 INFORMATION
ID                    : 0
NAME                  : opennebula-250
CLUSTER               : default
STATE                 : ERROR
IM_MAD                : kvm
VM_MAD                : kvm
LAST MONITORING TIME  : 10/30 11:32:54

HOST SHARES
TOTAL MEM             : 62.4G
USED MEM (REAL)       : 12.4G
USED MEM (ALLOCATED)  : 38G
TOTAL CPU             : 3200
USED CPU (REAL)       : 0
USED CPU (ALLOCATED)  : 1400
RUNNING VMS           : 7

LOCAL SYSTEM DATASTORE #0 CAPACITY
TOTAL:                : 2.7T
USED:                 : 19.2G
FREE:                 : 2.7T

MONITORING INFORMATION
ARCH="x86_64"
CPUSPEED="2399"
ERROR="Mon Oct 30 11:32:54 2017 : Error monitoring Host opennebula-250 (0): sh: /var/tmp/one/im/kvm.d/../run_probes: No such file or directory
"
HOSTNAME="opennebula-250.localdomain"
HYPERVISOR="kvm"
IM_MAD="kvm"
MODELNAME="Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz"
NETRX="2631437455"
NETTX="129750876"
RESERVED_CPU=""
RESERVED_MEM=""
VERSION="5.2.1"
VM_MAD="kvm"

WILD VIRTUAL MACHINES

NAME                                                      IMPORT_ID  CPU     MEMORY

VIRTUAL MACHINES

    ID USER     GROUP    NAME            STAT UCPU    UMEM HOST             TIME
     3 oneadmin oneadmin JUMP Server     unkn  0.0      4G opennebula 109d 18h19
     4 oneadmin oneadmin Temp 4GB 4vcpu  unkn  0.0      8G opennebula 107d 20h20
     5 oneadmin oneadmin KDN MDC Databas unkn  0.0      8G opennebula 103d 00h37
     6 oneadmin oneadmin KDN MDC FrontEn unkn  0.0      2G opennebula 103d 00h37
     7 oneadmin oneadmin KDN MDC Databas unkn  0.0      8G opennebula 103d 00h36
     8 oneadmin oneadmin KDN MDC Backend unkn  0.0      4G opennebula 103d 00h35
     9 oneadmin oneadmin KDN MDC Backend unkn  0.0      4G opennebula 103d 00h35
[oneadmin@opennebula-250 ~]$ ping opennebula-250
PING opennebula-250 (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.064 ms
64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.019 ms

See?

Solution is actually pretty simple.

remove