Re: Unable to migrate Engine to another HE Host

As we have tested off the list, it seems that the symbolic link in /var/lib/vdsm that ovirt-ha-agent/broker create was missing.Yet migration succeeds, but the donor host looses score as the vm 'died unexpectedly'. Try to cleanup the host2's metadata and try to provision it , so you can proceed with the fix of host1 & host3. I have no clue if engine-cleanup will affect the shared syorage, but it's possible - so use as last resort. If you fail to add host2 , you can always reinstall it as host4 and try to add it fresh. Best Regards,Strahil Nikolov On Fri, Apr 30, 2021 at 16:27, Marko Vrgotic<M.Vrgotic@activevideo.com> wrote: <!--#yiv1414828792 _filtered {} _filtered {} _filtered {}#yiv1414828792 #yiv1414828792 p.yiv1414828792MsoNormal, #yiv1414828792 li.yiv1414828792MsoNormal, #yiv1414828792 div.yiv1414828792MsoNormal {margin:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv1414828792 p.yiv1414828792MsoListParagraph, #yiv1414828792 li.yiv1414828792MsoListParagraph, #yiv1414828792 div.yiv1414828792MsoListParagraph {margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv1414828792 span.yiv1414828792EmailStyle17 {font-family:"Calibri", sans-serif;color:windowtext;}#yiv1414828792 .yiv1414828792MsoChpDefault {font-family:"Calibri", sans-serif;} _filtered {}#yiv1414828792 div.yiv1414828792WordSection1 {}#yiv1414828792 _filtered {} _filtered {} _filtered {} _filtered {} _filtered {} _filtered {} _filtered {} _filtered {} _filtered {} _filtered {}#yiv1414828792 ol {margin-bottom:0cm;}#yiv1414828792 ul {margin-bottom:0cm;}--> Dear oVirt, I have already reached out twice regarding the issues that occurred, due to power outage, but noticed only when upgrading engine to latest 4.3. version. I am unable to redeploy engine on Host2, the hosted-engine file stays empty and VDSM on Hosts1 and 3 is reporting, even though I cleared the metadata for the Host2, on Host 1 and Host3: 2021-04-30 05:57:58,454-0700 ERROR (jsonrpc/7) [ovirt_hosted_engine_ha.client.client.HAClient] Malformed metadata for host 2: received 0 of 512 expected bytes (client:137) Today I tried to migrate HE from Host 3 to Host 1 and it fails each time with following message: On Engine: 2021-04-30 12:57:56,961Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-1233892) [] EVENT_ID: VM_MIGRATION_TO_SERVER_FAILED(120), Migration failed (VM: HostedEngine, Source: ovirt-sj-03.ictv.com, Destination: ovirt-sj-01.ictv.com). On source Host: 2021-04-30 05:57:56,705-0700 ERROR (migsrc/66b6d489) [virt.vm] (vmId='66b6d489-ceb8-486a-951a-355e21f13627') Failed to migrate (migration:450) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 431, in _regular_run time.time(), migrationParams, machineParams File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 505, in _startUnderlyingMigration self._perform_with_conv_schedule(duri, muri) File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 591, in _perform_with_conv_schedule self._perform_migration(duri, muri) File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 525, in _perform_migration self._migration_flags) File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 100, in f ret = attr(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 94, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1781, in migrateToURI3 if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed', dom=self) libvirtError: operation aborted: migration out job: canceled by client I know that this version is end of life – but I would very much appreciate if someone could help me asses if this means corruption in DB or the overall damage, simply to know how to plan further actions. My impression was that I still had to functional HE Hosts in the pool, but after seeing migration failure, it’s pretty much down to single host. This is production system, so I cannot just move on to upgrading/deploying to 4.4. Additionally – : - Is the effect of the engine-cleanup on HE Host local or it affects all HE Hosts? Could that help bringing the Host back to state so that HE can be re-deployed? - What is the effect or reinitialize-lockspace? Kindly awaiting your reply. Happy to provide any additional information needed. ----- kind regards/met vriendelijke groeten Marko Vrgotic Sr. System Engineer @ System Administration ActiveVideo o: +31 (35) 6774131 m: +31 (65) 5734174 e: m.vrgotic@activevideo.com w: www.activevideo.com ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ Hilversum, The Netherlands. The information contained in this message may be legally privileged and confidential. It is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or destroy any copy of this message. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/FRTRNTSGPLQOS7...

On Sat, May 1, 2021 at 6:46 PM Strahil Nikolov via Users <users@ovirt.org> wrote:
As we have tested off the list, it seems that the symbolic link in /var/lib/vdsm that ovirt-ha-agent/broker create was missing. Yet migration succeeds, but the donor host looses score as the vm 'died unexpectedly'.
Try to cleanup the host2's metadata and try to provision it , so you can proceed with the fix of host1 & host3.
I have no clue if engine-cleanup will affect the shared syorage, but it's possible - so use as last resort.
'engine-cleanup' is a utility you run on the engine machine, which does basically the opposite of 'engine-setup', and in any case cleans up the _engine_, not any particular host. If you run it, your engine is gone, likely forever (unless you kept backups). What you might were looking for is 'ovirt-hosted-engine-cleanup'. This one cleans up a host from a hosted-engine deployment. It's generally intended to be used after a failed deployment attempt. I think it can work well also in your case, but would first try to fix using other means.
If you fail to add host2 , you can always reinstall it as host4 and try to add it fresh.
Best Regards, Strahil Nikolov
On Fri, Apr 30, 2021 at 16:27, Marko Vrgotic <M.Vrgotic@activevideo.com> wrote:
Dear oVirt,
I have already reached out twice regarding the issues that occurred, due to power outage, but noticed only when upgrading engine to latest 4.3. version.
I am unable to redeploy engine on Host2, the hosted-engine file stays empty and VDSM on Hosts1 and 3 is reporting, even though I cleared the metadata for the Host2, on Host 1 and Host3:
2021-04-30 05:57:58,454-0700 ERROR (jsonrpc/7) [ovirt_hosted_engine_ha.client.client.HAClient] Malformed metadata for host 2: received 0 of 512 expected bytes (client:137)
Today I tried to migrate HE from Host 3 to Host 1 and it fails each time with following message:
On Engine:
2021-04-30 12:57:56,961Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-1233892) [] EVENT_ID: VM_MIGRATION_TO_SERVER_FAILED(120), Migration failed (VM: HostedEngine, Source: ovirt-sj-03.ictv.com, Destination: ovirt-sj-01.ictv.com).
On source Host:
2021-04-30 05:57:56,705-0700 ERROR (migsrc/66b6d489) [virt.vm] (vmId='66b6d489-ceb8-486a-951a-355e21f13627') Failed to migrate (migration:450)
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 431, in _regular_run
time.time(), migrationParams, machineParams
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 505, in _startUnderlyingMigration
self._perform_with_conv_schedule(duri, muri)
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 591, in _perform_with_conv_schedule
self._perform_migration(duri, muri)
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 525, in _perform_migration
self._migration_flags)
File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 100, in f
ret = attr(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper
ret = f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 94, in wrapper
return func(inst, *args, **kwargs)
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1781, in migrateToURI3
if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed', dom=self)
libvirtError: operation aborted: migration out job: canceled by client
I know that this version is end of life – but I would very much appreciate if someone could help me asses if this means corruption in DB or the overall damage, simply to know how to plan further actions.
My impression was that I still had to functional HE Hosts in the pool, but after seeing migration failure, it’s pretty much down to single host.
This is production system, so I cannot just move on to upgrading/deploying to 4.4.
Additionally – :
Is the effect of the engine-cleanup on HE Host local or it affects all HE Hosts? Could that help bringing the Host back to state so that HE can be re-deployed? What is the effect or reinitialize-lockspace?
Kindly awaiting your reply. Happy to provide any additional information needed.
-----
kind regards/met vriendelijke groeten
Marko Vrgotic Sr. System Engineer @ System Administration
ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: m.vrgotic@activevideo.com w: www.activevideo.com
ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ Hilversum, The Netherlands. The information contained in this message may be legally privileged and confidential. It is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or destroy any copy of this message.
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/FRTRNTSGPLQOS7...
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/X4BO5TG4ZKL5VQ...
-- Didi

Hi Strahil and Yedidyah, First of all I want to thank you for helping me. So, this is what I did: * Executed steps as in https://access.redhat.com/solutions/2212601 and https://access.redhat.com/solutions/3319891 on working Hosts (Host1 and Host3) – to clean up failed deployment * Verified on Host1 and Host3 that metadata is cleaned by running : [root@ovirt-sj-03 ~]# hosted-engine --vm-status | grep -B2 "Host ID" Status up-to-date : True Hostname : ovirt-sj-01.ictv.com Host ID : 1 -- Status up-to-date : True Hostname : ovirt-sj-03.ictv.com Host ID : 3 * Reran hosted-engine deploy from UI on Host2 From the start of deployment, I could see following ERROR messages on Host2: VDSM: 2021-05-03 07:58:21,205+0000 ERROR (periodic/3) [root] failed to retrieve Hosted Engine HA score '[Errno 2] No such file or directory'Is the Hosted Engine setup finished? (api:196) 2021-05-03 07:58:36,257+0000 ERROR (periodic/3) [root] failed to retrieve Hosted Engine HA score '[Errno 2] No such file or directory'Is the Hosted Engine setup finished? (api:196) 2021-05-03 07:58:46,093+0000 ERROR (jsonrpc/7) [root] failed to retrieve Hosted Engine HA score '[Errno 2] No such file or directory'Is the Hosted Engine setup finished? (api:196) OVIRT-HA-AGENT|BROKER: MainThread::ERROR::2021-05-03 08:12:57,690::agent::145::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Trying to restart agent MainThread::INFO::2021-05-03 08:12:57,691::agent::89::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Agent shutting down MainThread::INFO::2021-05-03 08:13:08,005::agent::67::ovirt_hosted_engine_ha.agent.agent.Agent::(run) ovirt-hosted-engine-ha agent 2.3.6 started MainThread::INFO::2021-05-03 08:13:08,061::hosted_engine::234::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_get_hostname) Found certificate common name: ovirt-sj-02.ictv.com MainThread::INFO::2021-05-03 08:13:08,187::hosted_engine::543::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker) Initializing ha-broker connection MainThread::INFO::2021-05-03 08:13:08,189::brokerlink::80::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor) Starting monitor network, options {'tcp_t_address': None, 'network_test': None, 'tcp_t_port': None, 'addr': None} MainThread::ERROR::2021-05-03 08:13:08,190::hosted_engine::559::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_broker) Failed to start necessary monitors MainThread::ERROR::2021-05-03 08:13:08,190::agent::144::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 131, in _run_agent return action(he) File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/agent.py", line 55, in action_proper return he.start_monitoring() File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 432, in start_monitoring self._initialize_broker() File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/agent/hosted_engine.py", line 556, in _initialize_broker m.get('options', {})) File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 89, in start_monitor ).format(t=type, o=options, e=e) RequestError: brokerlink - failed to start monitor via ovirt-ha-broker: [Errno 2] No such file or directory, [monitor: 'network', options: {'tcp_t_address': None, 'network_test': None, 'tcp_t_port': None, 'addr': None}] MainThread::ERROR::2021-05-03 08:13:08,191::agent::145::ovirt_hosted_engine_ha.agent.agent.Agent::(_run_agent) Trying to restart agent MainThread::INFO::2021-05-03 08:13:08,191::agent::89::ovirt_hosted_engine_ha.agent.agent.Agent::(run) Agent shutting down And the Hosted-Engine.conf file looks like this: [root@ovirt-sj-02 ~]# cat /etc/ovirt-hosted-engine/hosted-engine.conf ca_cert=/etc/pki/vdsm/libvirt-spice/ca-cert.pem host_id=2 Ovirt hosted_engine network path is mounted. What could be the reason hosted-engine.conf is missing all other entries? Do I copy the hosted-engine.conf from host1 or host3, making sure host_id is unique (host_id=2) on Host2, and try to re-deploy? How does the hosted-engine.conf gets loaded or from where? Am I missing a mount point? Is the deployment failing because hosted-engine.conf is empty or it’s the other way around? ----- kind regards/met vriendelijke groeten Marko Vrgotic Sr. System Engineer @ System Administration ActiveVideo o: +31 (35) 6774131 m: +31 (65) 5734174 e: m.vrgotic@activevideo.com<mailto:m.vrgotic@activevideo.com> w: www.activevideo.com<http://www.activevideo.com> ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ Hilversum, The Netherlands. The information contained in this message may be legally privileged and confidential. It is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or destroy any copy of this message. From: Yedidyah Bar David <didi@redhat.com> Date: Sunday, 2 May 2021 at 08:44 To: Strahil Nikolov <hunter86_bg@yahoo.com> Cc: Marko Vrgotic <M.Vrgotic@activevideo.com>, users@ovirt.org <users@ovirt.org> Subject: Re: [ovirt-users] Re: Unable to migrate Engine to another HE Host ***CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender!!!*** On Sat, May 1, 2021 at 6:46 PM Strahil Nikolov via Users <users@ovirt.org> wrote:
As we have tested off the list, it seems that the symbolic link in /var/lib/vdsm that ovirt-ha-agent/broker create was missing. Yet migration succeeds, but the donor host looses score as the vm 'died unexpectedly'.
Try to cleanup the host2's metadata and try to provision it , so you can proceed with the fix of host1 & host3.
I have no clue if engine-cleanup will affect the shared syorage, but it's possible - so use as last resort.
'engine-cleanup' is a utility you run on the engine machine, which does basically the opposite of 'engine-setup', and in any case cleans up the _engine_, not any particular host. If you run it, your engine is gone, likely forever (unless you kept backups). What you might were looking for is 'ovirt-hosted-engine-cleanup'. This one cleans up a host from a hosted-engine deployment. It's generally intended to be used after a failed deployment attempt. I think it can work well also in your case, but would first try to fix using other means.
If you fail to add host2 , you can always reinstall it as host4 and try to add it fresh.
Best Regards, Strahil Nikolov
On Fri, Apr 30, 2021 at 16:27, Marko Vrgotic <M.Vrgotic@activevideo.com> wrote:
Dear oVirt,
I have already reached out twice regarding the issues that occurred, due to power outage, but noticed only when upgrading engine to latest 4.3. version.
I am unable to redeploy engine on Host2, the hosted-engine file stays empty and VDSM on Hosts1 and 3 is reporting, even though I cleared the metadata for the Host2, on Host 1 and Host3:
2021-04-30 05:57:58,454-0700 ERROR (jsonrpc/7) [ovirt_hosted_engine_ha.client.client.HAClient] Malformed metadata for host 2: received 0 of 512 expected bytes (client:137)
Today I tried to migrate HE from Host 3 to Host 1 and it fails each time with following message:
On Engine:
2021-04-30 12:57:56,961Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-1233892) [] EVENT_ID: VM_MIGRATION_TO_SERVER_FAILED(120), Migration failed (VM: HostedEngine, Source: ovirt-sj-03.ictv.com, Destination: ovirt-sj-01.ictv.com).
On source Host:
2021-04-30 05:57:56,705-0700 ERROR (migsrc/66b6d489) [virt.vm] (vmId='66b6d489-ceb8-486a-951a-355e21f13627') Failed to migrate (migration:450)
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 431, in _regular_run
time.time(), migrationParams, machineParams
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 505, in _startUnderlyingMigration
self._perform_with_conv_schedule(duri, muri)
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 591, in _perform_with_conv_schedule
self._perform_migration(duri, muri)
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 525, in _perform_migration
self._migration_flags)
File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 100, in f
ret = attr(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper
ret = f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 94, in wrapper
return func(inst, *args, **kwargs)
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1781, in migrateToURI3
if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed', dom=self)
libvirtError: operation aborted: migration out job: canceled by client
I know that this version is end of life – but I would very much appreciate if someone could help me asses if this means corruption in DB or the overall damage, simply to know how to plan further actions.
My impression was that I still had to functional HE Hosts in the pool, but after seeing migration failure, it’s pretty much down to single host.
This is production system, so I cannot just move on to upgrading/deploying to 4.4.
Additionally – :
Is the effect of the engine-cleanup on HE Host local or it affects all HE Hosts? Could that help bringing the Host back to state so that HE can be re-deployed? What is the effect or reinitialize-lockspace?
Kindly awaiting your reply. Happy to provide any additional information needed.
-----
kind regards/met vriendelijke groeten
Marko Vrgotic Sr. System Engineer @ System Administration
ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: m.vrgotic@activevideo.com w: www.activevideo.com<http://www.activevideo.com>
ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ Hilversum, The Netherlands. The information contained in this message may be legally privileged and confidential. It is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or destroy any copy of this message.
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-- Didi
participants (3)
-
Marko Vrgotic
-
Strahil Nikolov
-
Yedidyah Bar David