6:59 a.m.
Hi list,
I have a hosted engine running on a CentOS 8. The engine and all the
VM's are stored on a 4-node gluster. I had some issues with the gluster
and then the hosted-engine stopped working (even though the
virtualization dashboard showed 4 virtual machines running). I tried to
"systemctl restart" the hosted-engine, but it failed. I try to reboot
the server and the hosted-engine still will not come up. Note that the
server has no issue mounting the gluster:
$ df
hydra1:/MRIData 390664407040 20530130012 370134277028 6%
/rhev/data-center/mnt/glusterSD/hydra1:_MRIData
$ ls -l
/rhev/data-center/mnt/glusterSD/hydra1\:_MRIData/6547dc22-b89e-4f14-8958-c9e8d27b29a4/
drwxr-xr-x. 2 vdsm kvm 4.0K Mar 29 12:24 dom_md
drwxr-xr-x. 2 vdsm kvm 4.0K Jul 20 17:47 ha_agent
drwxr-xr-x. 12 vdsm kvm 4.0K Apr 1 16:32 images
drwxr-xr-x. 4 vdsm kvm 4.0K Mar 29 12:24 master
Where "hydra1" is one of my gluster nodes and MRIData is the volume name.
Here is the relevant snippet from /var/log/ovirt-hosted-engine-ha/agent.log
MainThread::INFO::2021-07-20
17:29:07,584::agent::67::ovirt_hosted_engine_ha.agent.agent.Agent::(run)
ovirt-hosted-engine-ha agent 2.4.6 started
MainThread::INFO::2021-07-20
17:29:07,594::hosted_engine::242::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_get_hostname)
Certificate common name not found, using hostname to identify host
MainThread::INFO::2021-07-20
17:29:07,635::hosted_engine::548::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker)
Initializing ha-broker connection
MainThread::INFO::2021-07-20
17:29:07,636::brokerlink::82::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor)
Starting monitor network, options {'addr': '192.168.39.65',
'network_test': 'dns', 'tcp_t_address': '',
'tcp_t_port': ''}
MainThread::ERROR::2021-07-20
17:29:07,636::hosted_engine::564::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker)
Failed to start necessary monitors
MainThread::ERROR::2021-07-20
17:29:07,637::agent::143::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Traceback
(most recent call last):
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 85, in start_monitor
response = self._proxy.start_monitor(type, options)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1112, in __call__
return self.__send(self.__name, args)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1452, in __request
verbose=self.__verbose
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1154, in request
return self.single_request(host, handler, request_body, verbose)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1166, in
single_request
http_conn = self.send_request(host, handler, request_body, verbose)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1279, in send_request
self.send_content(connection, request_body)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1309, in send_content
connection.endheaders(request_body)
File "/usr/lib64/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib64/python3.6/http/client.py", line 974, in send
self.connect()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py", line
74, in connect
self.sock.connect(base64.b16decode(self.host))
FileNotFoundError: [Errno 2] No such file or directory
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line
131, in _run_agent
return action(he)
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line
55, in action_proper
return he.start_monitoring()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
line 437, in start_monitoring
self._initialize_broker()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
line 561, in _initialize_broker
m.get('options', {}))
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 91, in start_monitor
).format(t=type, o=options, e=e)
ovirt_hosted_engine_ha.lib.exceptions.RequestError: brokerlink - failed to start
monitor via ovirt-ha-broker: [Errno 2] No such file or directory, [monitor:
'network', options: {'addr': '192.168.39.65',
'network_test': 'dns', 'tcp_t_address': '',
'tcp_t_port': ''}]
MainThread::ERROR::2021-07-20
17:29:07,637::agent::144::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Trying to
restart agent
MainThread::INFO::2021-07-20
17:29:07,637::agent::89::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Agent shutting
down
I'm puzzled by that "Certificate common name not found", which I had not
seen before. The fqdn of the hosted engine resolves fine on the server,
so does the fqdn of the server itself. The ip address it seems to try to
use for the network is that of one of the university's gateways.
Any ideas ? Any way to debug this further ?
Thanks in advance,
--
Valerio Luccio (212) 998-8736
Center for Brain Imaging 4 Washington Place, Room 157
New York University New York, NY 10003
"In an open world, who needs windows or gates ?"
2:39 p.m.
Seems to be a bug:. https://bugzilla.redhat.com/show_bug.cgi?id=1727581
Can you update the host ?
Best Regards,Strahil Nikolov
On Wed, Jul 21, 2021 at 1:01, Valerio Luccio<valerio.luccio(a)nyu.edu> wrote:
Hi list,
I have a hosted engine running on a CentOS 8. The engine and all the VM's are stored
on a 4-node gluster. I had some issues with the gluster and then the hosted-engine stopped
working (even though the virtualization dashboard showed 4 virtual machines running). I
tried to "systemctl restart" the hosted-engine, but it failed. I try to reboot
the server and the hosted-engine still will not come up. Note that the server has no issue
mounting the gluster:
$ df
hydra1:/MRIData 390664407040 20530130012 370134277028 6%
/rhev/data-center/mnt/glusterSD/hydra1:_MRIData
$ ls -l
/rhev/data-center/mnt/glusterSD/hydra1\:_MRIData/6547dc22-b89e-4f14-8958-c9e8d27b29a4/
drwxr-xr-x. 2 vdsm kvm 4.0K Mar 29 12:24 dom_md
drwxr-xr-x. 2 vdsm kvm 4.0K Jul 20 17:47 ha_agent
drwxr-xr-x. 12 vdsm kvm 4.0K Apr 1 16:32 images
drwxr-xr-x. 4 vdsm kvm 4.0K Mar 29 12:24 master
Where "hydra1" is one of my gluster nodes and MRIData is the volume name.
Here is the relevant snippet from /var/log/ovirt-hosted-engine-ha/agent.log
MainThread::INFO::2021-07-20
17:29:07,584::agent::67::ovirt_hosted_engine_ha.agent.agent.Agent::(run)
ovirt-hosted-engine-ha agent 2.4.6 started
MainThread::INFO::2021-07-20
17:29:07,594::hosted_engine::242::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_get_hostname)
Certificate common name not found, using hostname to identify host
MainThread::INFO::2021-07-20
17:29:07,635::hosted_engine::548::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker)
Initializing ha-broker connection
MainThread::INFO::2021-07-20
17:29:07,636::brokerlink::82::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor)
Starting monitor network, options {'addr': '192.168.39.65',
'network_test': 'dns', 'tcp_t_address': '',
'tcp_t_port': ''}
MainThread::ERROR::2021-07-20
17:29:07,636::hosted_engine::564::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker)
Failed to start necessary monitors
MainThread::ERROR::2021-07-20
17:29:07,637::agent::143::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Traceback
(most recent call last):
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 85, in start_monitor
response = self._proxy.start_monitor(type, options)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1112, in __call__
return self.__send(self.__name, args)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1452, in __request
verbose=self.__verbose
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1154, in request
return self.single_request(host, handler, request_body, verbose)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1166, in single_request
http_conn = self.send_request(host, handler, request_body, verbose)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1279, in send_request
self.send_content(connection, request_body)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1309, in send_content
connection.endheaders(request_body)
File "/usr/lib64/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib64/python3.6/http/client.py", line 974, in send
self.connect()
File "/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py",
line 74, in connect
self.sock.connect(base64.b16decode(self.host))
FileNotFoundError: [Errno 2] No such file or directory
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/agent.py",
line 131, in _run_agent
return action(he)
File "/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/agent.py",
line 55, in action_proper
return he.start_monitoring()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
line 437, in start_monitoring
self._initialize_broker()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
line 561, in _initialize_broker
m.get('options', {}))
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 91, in start_monitor
).format(t=type, o=options, e=e)
ovirt_hosted_engine_ha.lib.exceptions.RequestError: brokerlink - failed to start monitor
via ovirt-ha-broker: [Errno 2] No such file or directory, [monitor: 'network',
options: {'addr': '192.168.39.65', 'network_test': 'dns',
'tcp_t_address': '', 'tcp_t_port': ''}]
MainThread::ERROR::2021-07-20
17:29:07,637::agent::144::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Trying to
restart agent
MainThread::INFO::2021-07-20
17:29:07,637::agent::89::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Agent shutting
down
I'm puzzled by that "Certificate common name not found", which I had not
seen before. The fqdn of the hosted engine resolves fine on the server, so does the fqdn
of the server itself. The ip address it seems to try to use for the network is that of one
of the university's gateways.
Any ideas ? Any way to debug this further ?
Thanks in advance,
--
Valerio Luccio (212) 998-8736
Center for Brain Imaging 4 Washington Place, Room 157
New York University New York, NY 10003
"In an open world, who needs windows or gates ?"
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2:46 p.m.
On Wed, Jul 21, 2021 at 1:01 AM Valerio Luccio <valerio.luccio(a)nyu.edu> wrote:
Hi list,
I have a hosted engine running on a CentOS 8. The engine and all the VM's are stored
on a 4-node gluster. I had some issues with the gluster and then the hosted-engine stopped
working (even though the virtualization dashboard showed 4 virtual machines running). I
tried to "systemctl restart" the hosted-engine, but it failed. I try to reboot
the server and the hosted-engine still will not come up. Note that the server has no issue
mounting the gluster:
$ df
hydra1:/MRIData 390664407040 20530130012 370134277028 6%
/rhev/data-center/mnt/glusterSD/hydra1:_MRIData
$ ls -l
/rhev/data-center/mnt/glusterSD/hydra1\:_MRIData/6547dc22-b89e-4f14-8958-c9e8d27b29a4/
drwxr-xr-x. 2 vdsm kvm 4.0K Mar 29 12:24 dom_md
drwxr-xr-x. 2 vdsm kvm 4.0K Jul 20 17:47 ha_agent
drwxr-xr-x. 12 vdsm kvm 4.0K Apr 1 16:32 images
drwxr-xr-x. 4 vdsm kvm 4.0K Mar 29 12:24 master
Where "hydra1" is one of my gluster nodes and MRIData is the volume name.
Here is the relevant snippet from /var/log/ovirt-hosted-engine-ha/agent.log
MainThread::INFO::2021-07-20
17:29:07,584::agent::67::ovirt_hosted_engine_ha.agent.agent.Agent::(run)
ovirt-hosted-engine-ha agent 2.4.6 started
MainThread::INFO::2021-07-20
17:29:07,594::hosted_engine::242::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_get_hostname)
Certificate common name not found, using hostname to identify host
MainThread::INFO::2021-07-20
17:29:07,635::hosted_engine::548::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker)
Initializing ha-broker connection
MainThread::INFO::2021-07-20
17:29:07,636::brokerlink::82::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor)
Starting monitor network, options {'addr': '192.168.39.65',
'network_test': 'dns', 'tcp_t_address': '',
'tcp_t_port': ''}
MainThread::ERROR::2021-07-20
17:29:07,636::hosted_engine::564::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker)
Failed to start necessary monitors
MainThread::ERROR::2021-07-20
17:29:07,637::agent::143::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Traceback
(most recent call last):
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 85, in start_monitor
response = self._proxy.start_monitor(type, options)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1112, in __call__
return self.__send(self.__name, args)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1452, in __request
verbose=self.__verbose
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1154, in request
return self.single_request(host, handler, request_body, verbose)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1166, in single_request
http_conn = self.send_request(host, handler, request_body, verbose)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1279, in send_request
self.send_content(connection, request_body)
File "/usr/lib64/python3.6/xmlrpc/client.py", line 1309, in send_content
connection.endheaders(request_body)
File "/usr/lib64/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib64/python3.6/http/client.py", line 974, in send
self.connect()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py", line
74, in connect
self.sock.connect(base64.b16decode(self.host))
FileNotFoundError: [Errno 2] No such file or directory
This seems to indicate that the broker is down. Can you check it,
please - log, restart, status, etc.?
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line
131, in _run_agent
return action(he)
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line
55, in action_proper
return he.start_monitoring()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
line 437, in start_monitoring
self._initialize_broker()
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py",
line 561, in _initialize_broker
m.get('options', {}))
File
"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 91, in start_monitor
).format(t=type, o=options, e=e)
ovirt_hosted_engine_ha.lib.exceptions.RequestError: brokerlink - failed to start monitor
via ovirt-ha-broker: [Errno 2] No such file or directory, [monitor: 'network',
options: {'addr': '192.168.39.65', 'network_test': 'dns',
'tcp_t_address': '', 'tcp_t_port': ''}]
MainThread::ERROR::2021-07-20
17:29:07,637::agent::144::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Trying to
restart agent
MainThread::INFO::2021-07-20
17:29:07,637::agent::89::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Agent shutting
down
I'm puzzled by that "Certificate common name not found", which I had not
seen before.
This seems like a harmless bug. Now filed it, mainly for reference -
not sure it's worth fixing:
https://bugzilla.redhat.com/show_bug.cgi?id=1984262
The fqdn of the hosted engine resolves fine on the server, so does
the fqdn of the server itself. The ip address it seems to try to use for the network is
that of one of the university's gateways.
Any ideas ? Any way to debug this further ?
See above - check the broker.
Thanks and best regards,
--
Didi
11:33 p.m.
On 7/21/21 1:46 AM, Yedidyah Bar David wrote:
On Wed, Jul 21, 2021 at 1:01 AM Valerio Luccio
<valerio.luccio(a)nyu.edu> wrote:
> [...]
This seems to indicate that the broker is down. Can you check it,
please - log, restart, status, etc.?
> [...]
See above - check the broker.
Thanks and best regards,
Indeed Didi, the broker starts, but then fails. It would seem that some
of my images have disappeared, it probably has to do with my gluster
issues. I'll try to fix that first and see if I can recover the images.
Thanks,
--
As a result of Coronavirus-related precautions, NYU and the Center for
Brain Imaging operations will be managed remotely until further notice.
All telephone calls and e-mail correspondence are being monitored
remotely during our normal business hours of 9am-5pm, Monday through
Friday.
For MRI scanner-related emergency, please contact: Keith Sanzenbach at
keith.sanzenbach(a)nyu.edu and/or Pablo Velasco at pablo.velasco(a)nyu.edu
For computer/hardware/software emergency, please contact: Valerio Luccio
at valerio.luccio(a)nyu.edu
For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at
chrysa(a)nyu.edu
For CBI-related administrative emergency, please contact: Jennifer
Mangan at jennifer.mangan(a)nyu.edu
Valerio Luccio (212) 998-8736
Center for Brain Imaging 4 Washington Place, Room 158
New York University New York, NY 10003
"In an open world, who needs windows or gates ?"
1401
days inactive
1402
days old
3 comments
3 participants
participants (3)
-
Strahil Nikolov -
Valerio Luccio -
Yedidyah Bar David