ALLOCATED_MEM STAT = err

Community Support General
1

Hello all.
I have a Dual AMD Opteron server with 64GB RAM, CentOS 7.6. I installed OpenNebula 5.8.5 as per documentation for Hypervisor KVM and Sunstone on the same machine.

After creating the host configuration (KVM), I added a direct image of Marktplace, a Debian 9 (KVM). When you create a VM from this image, its status is forever “PENDING”.

Checking the status of the server gets ALLOCATED_MEM STAT = err, as shown below.
[root@host01 ~]# onehost list
ID NAME CLUSTER TVM ALLOCATED_CPU ALLOCATED_MEM STAT
6 host01 default 0 - - err

The log file /var/log/one/sched.log
Mon Oct 14 15:46:20 2019 [Z0][VM][D]: Found 1 pending/rescheduling VMs.
Mon Oct 14 15:46:20 2019 [Z0][HOST][D]: Discovered 0 enabled hosts.
Mon Oct 14 15:46:20 2019 [Z0][VM][D]: VMs in VMGroups:

Mon Oct 14 15:46:20 2019 [Z0][VNET][D]: Discovered 1 vnets.
Mon Oct 14 15:46:20 2019 [Z0][SCHED][D]: Match-making results for VM 6:
Cannot schedule VM, there is no suitable host.

Mon Oct 14 15:46:20 2019 [Z0][SCHED][D]: Dispatching VMs to hosts:
VMID Priority Host System DS
--------------------------------------------------------------

Has anyone had such a problem?

2

Hi @lvicentini

You need to look possible errors on /var/log/one/oned.log in order to find what happens with the host. The VM will not run unless a host is OK.

3

Hello @dclavijo

Is possible, change ssh port to use with opennebula?

Idont use ssh in port 22.

4

OpenNebula uses SSH for communication between the frontend and the hosts. It should be agnostic to the port where SSH runs on.

5

Hi @dclavijo, how are you?

When ssh port is default (22), everything works fine, when I change port to (2222) it doesn’t work anymore. Tried to add the port to the file .ssh/config user settings “ondeadmin”, tried to make a new ssh-keyscan -p 2222 after changing the port. Does not work. Any idea?