So grateful for your help here - I ran tcpdump on the host, and I saw
the connection requests to the host from the hosted-engine on 54321/tcp,
so I was kind of getting there on the whole vdsm thing.
The install just fell over again (same issue - the 120 second timeout
you described). Taking a step back here, I think something is wrong very
early on in my upgrade process. My environment is:
2 x RHEL based hosts (previously RHEL 7 - to be re-installed with RHEL 8
as per install documentation)
NFS based storage
Self-hosted engine
I have been following the documentation here:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html-single/upgrade_guide/index#SHE_Upgrading_from_4-3
And specifically here:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html-single/upgrade_guide/index#Upgrading_the_Manager_to_4-4_4-3_SHE
All pre-requisite steps are done - the 4.3 engine was upgraded to the
latest version before the backup was taken and it was shut down.
Now, I note that on my RHEL 8 host (newly installed), vdsmd is not
configured or running. The deploy script is not opening the firewall for
the temporary manager to talk to the host on 54321, but it wouldn't
matter if it did - even if were open up the firewall, there's no
configured vdsmd running for it to talk to anyway.
I suddenly have the feeling that I've missed an important step that
would have configured the freshly installed RHEL 8 host for the
hosted-engine to be installed on - but I can't see what this might be.
I've been back and forth through the documentation but I can't see where
vdsmd would have been configured on the host. In short (ignoring all the
failed attempts), my commands to install on a fresh RHEL 8 host have been:
dnf module reset virt
dnf module list virt
dnf module enable virt:8.3
dnf distro-sync --nobest
dnf install rhvm-appliance
reboot
dnf install ovirt-hosted-engine-setup
dnf install firewalld
systemctl status firewalld
systemctl enable firewalld
systemctl start firewalld
systemctl status firewalld
hosted-engine --deploy --restore-from-file=backup.bck
Am I missing something fundamental, or is there another step that's not
working where vdsmd would have been configured?
Many thanks
James
Yedidyah Bar David wrote on 19/01/2021 10:36:
On Tue, Jan 19, 2021 at 12:25 PM James Freeman <james.free...@a24.io> wrote:
Thanks Didi
Great pointer - I have just performed a fresh deploy - am in the
hosted-engine VM, and in /var/log/ovirt-engine/engine-log, I can see the
following 3 lines cycling over and over again:
2021-01-19 05:12:11,395-05 INFO
[org.ovirt.vdsm.jsonrpc.client.reactors.ReactorClient] (SSL Stomp
Reactor) [] Connecting to rhvh1.example.org/192.168.50.31
2021-01-19 05:12:11,399-05 ERROR
[org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring]
(EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-96)
[] Unable to RefreshCapabilities: ConnectException: Connection refused
2021-01-19 05:12:11,401-05 ERROR
[org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesAsyncVDSCommand]
(EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-96)
[] Command 'GetCapabilitiesAsyncVDSCommand(HostName = rhvh1.example.org,
VdsIdAndVdsVDSCommandParametersBase:{hostId='12057f7e-a4cf-46ec-b563-c1037ba5c62d',
vds='Host[rhvh1.example.org,12057f7e-a4cf-46ec-b563-c1037ba5c62d]'})'
execution failed: java.net.ConnectException: Connection refused
I can ping 192.168.50.31 and resolve rhvh1.example.org - however I note
that firewalld on the hypervisor host (192.168.50.31) hasn't had
anything allowed through it yet apart from SSH and Cockpit. Is this a
problem, or a red herring?
Generally speaking, the deploy process connects first from the engine to
the host via ssh (22), then (also) configures firewalld to allow access
to vdsm (the oVirt host-side agent, port 54321), and later the engine
normally communicates with the host via vdsm.
Whether or not all of this worked, depends on exactly how you configured
your host's firewalld beforehand.
I suggest to start by not touching it, do the deployment, then see what
it does/did (and that it worked), then decide how you are going to adapt
your policy/tooling/whatever for later deployments, assuming you want to
harden your hosts before deploying.
It seems that the hosted-engine is coming up and being installed and
configured ok. The engine health page looks ok (as validated by
Ansible). It looks like the hosted-engine is waiting for something to
happen on the host itself, but this never completed - which I suspect it
never will given that it cannot connect to the host.
The deploy process runs on the host, connects to the engine, asks it to
add the host, then waits until it sees the host in the engine with status
'Up'. It indeed does not try to further diagnose failures, nor fail more
quickly - if it's 'Up' it's quick, if it's not, it will wait for a timeout
(120 times * 10 seconds = 20 minutes).
Am I on the right track?
You are :-).
Good luck and best regards,
Yedidyah Bar David wrote on 19/01/2021 10:06:
On Tue, Jan 19, 2021 at 11:44 AM <james.free...@a24.io> wrote:
Hi all
I am in the process of migrating a RHV 4.3 setup to RHV 4.4 and struggling with
the setup. I am installing on RHEL 8.3, using settings backed up from the RHV
4.3 install (via 'hosted-engine --deploy --restore-from-file=backup.bck').
The install process always fails at the same point for me at the moment, and I
can't figure out how to get past it. As far as install progress goes, the local
hosted-engine comes up and runs on the node. I have been able to grep for
local_vm_ip in the logs, and can SSH into it with the password I set during the
setup phase.
However the install playbooks always fail with:
2021-01-18 18:38:00,086-0500 ERROR otopi.plugins.gr_he_common.core.misc
misc._terminate:167 Hosted Engine deployment failed: please check the logs for
the issue, fix accordingly or re-deploy from scratch.
Earlier in the logs, I note the following:
2021-01-18 18:34:51,258-0500 ERROR otopi.ovirt_hosted_engine_setup.ansible_utils
ansible_utils._process_output:109 fatal: [localhost]: FAILED! => {"changed": false,
"msg": "Host is not up, please check logs, perhaps also on the engine machine"}
2021-01-18 18:37:16,661-0500 ERROR otopi.ovirt_hosted_engine_setup.ansible_utils
ansible_utils._process_output:109 fatal: [localhost]: FAILED! => {"changed": false,
"msg": "The system may not be provisioned according to the playbook results: please check the
logs for the issue, fix accordingly or re-deploy from scratch.\n"}
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/otopi/context.py", line 132, in
_executeMethod
method['method']()
File
"/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/gr-he-ansiblesetup/core/misc.py",
line 435, in _closeup
raise RuntimeError(_('Failed executing ansible-playbook'))
RuntimeError: Failed executing ansible-playbook
2021-01-18 18:37:18,996-0500 ERROR otopi.context context._executeMethod:154
Failed to execute stage 'Closing up': Failed executing ansible-playbook
2021-01-18 18:37:32,421-0500 ERROR otopi.ovirt_hosted_engine_setup.ansible_utils ansible_utils._process_output:109 fatal: [localhost]:
UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh: ssh: connect to host
rhvm.example.org port 22: No route to host", "skip_reason": "Host localhost is unreachable", "unreachable":
true}
I find the unreachable message a bit odd, as at this stage all that has
happened is that the local hosted-engine has been brought up to be configured,
and so it is running on virbr0, not on my actual network. As a result, that DNS
address will never resolve, and the IP it resolves to won't be up. I gave the
installation script permission to modify the local /etc/hosts but this hasn't
improved things.
I presume I'm missing something in the install process, or earlier on in the
logs, but I've been scanning for errors and possible clues to no avail.
Any and all help greatly appreciated!
Please check/share, on the engine machine under /var/log/ovirt-engine,
or, if inaccessible, on the host, under
/var/log/ovirt-hosted-engine-setup/engine-logs-*:
engine.log
host-deploy/*
Good luck and best regards,
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