Hi Rik,

On 5/14/19 2:21 PM, Rik Theys wrote:

Hi,

It seems VM pools are completely broken since our upgrade to 4.3. Is anybody else also experiencing this issue?

I've tried to reproduce this issue. And I can use pool VMs as expected, no problem. I've tested clean install and also upgrade from 4.2.8.7. Version: ovirt-engine-4.3.3.7-0.1.el7.noarch with ovirt-web-ui-1.5.2-1.el7ev.noarch

Only a single instance from a pool can be used. Afterwards the pool becomes unusable due to a lock not being released. Once ovirt-engine is restarted, another (single) VM from a pool can be used.

What users are running the VMs? What are the permissions?
Each VM is running by other user? Were already some VMs running before the upgrade?
Please provide exact steps.

I've added my findings to bug 1462236, but I'm no longer sure the issue is the same as the one initially reported.

When the first VM of a pool is started:

2019-05-14 13:26:46,058+02 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] START, 
IsVmDuringInitiatingVDSCommand( 
IsVmDuringInitiatingVDSCommandParameters:{vmId='d8a99676-d520-425e-9974-1b1efe6da8a5'}),
 log id: 2fb4f7f5
2019-05-14 13:26:46,058+02 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] FINISH, 
IsVmDuringInitiatingVDSCommand, return: false, log id: 2fb4f7f5
2019-05-14 13:26:46,208+02 INFO  [org.ovirt.engine.core.bll.VmPoolHandler] 
(default task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Lock Acquired to object 
'EngineLock:{exclusiveLocks='[d8a99676-d520-425e-9974-1b1efe6da8a5=VM]', 
sharedLocks=''}'

-> it has acquired a lock (lock1)

2019-05-14 13:26:46,247+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Lock Acquired to object 
'EngineLock:{exclusiveLocks='[a5bed59c-d2fe-4fe4-bff7-52efe089ebd6=USER_VM_POOL]',
 sharedLocks=''}'

-> it has acquired another lock (lock2)

2019-05-14 13:26:46,352+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Running command: 
AttachUserToVmFromPoolAndRunCommand internal: false. Entities affected :  ID: 
4c622213-e5f4-4032-8639-643174b698cc Type: VmPoolAction group 
VM_POOL_BASIC_OPERATIONS with role type USER
2019-05-14 13:26:46,393+02 INFO  
[org.ovirt.engine.core.bll.AddPermissionCommand] (default task-6) 
[e3c5745c-e593-4aed-ba67-b173808140e8] Running command: AddPermissionCommand 
internal: true. Entities affected :  ID: d8a99676-d520-425e-9974-1b1efe6da8a5 
Type: VMAction group MANIPULATE_PERMISSIONS with role type USER
2019-05-14 13:26:46,433+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Succeeded giving user 
'a5bed59c-d2fe-4fe4-bff7-52efe089ebd6' permission to Vm 
'd8a99676-d520-425e-9974-1b1efe6da8a5'
2019-05-14 13:26:46,608+02 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] START, 
IsVmDuringInitiatingVDSCommand( 
IsVmDuringInitiatingVDSCommandParameters:{vmId='d8a99676-d520-425e-9974-1b1efe6da8a5'}),
 log id: 67acc561
2019-05-14 13:26:46,608+02 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] FINISH, 
IsVmDuringInitiatingVDSCommand, return: false, log id: 67acc561
2019-05-14 13:26:46,719+02 INFO  [org.ovirt.engine.core.bll.RunVmCommand] 
(default task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Running 
command:RunVmCommand internal: true. Entities affected :  ID: 
d8a99676-d520-425e-9974-1b1efe6da8a5 Type: VMAction group RUN_VM with role type 
USER
2019-05-14 13:26:46,791+02 INFO  
[org.ovirt.engine.core.vdsbroker.UpdateVmDynamicDataVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] START, 
UpdateVmDynamicDataVDSCommand( 
UpdateVmDynamicDataVDSCommandParameters:{hostId='null', 
vmId='d8a99676-d520-425e-9974-1b1efe6da8a5', 
vmDynamic='org.ovirt.engine.core.common.businessentities.VmDynamic@6db8c94d'}), 
log id: 2c110e4
2019-05-14 13:26:46,795+02 INFO  
[org.ovirt.engine.core.vdsbroker.UpdateVmDynamicDataVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] FINISH, 
UpdateVmDynamicDataVDSCommand, return: , log id: 2c110e4
2019-05-14 13:26:46,804+02 INFO  
[org.ovirt.engine.core.vdsbroker.CreateVDSCommand] (default task-6) 
[e3c5745c-e593-4aed-ba67-b173808140e8] START,CreateVDSCommand( 
CreateVDSCommandParameters:{hostId='eec7ec2b-cae1-4bb9-b933-4dff47a70bdb', 
vmId='d8a99676-d520-425e-9974-1b1efe6da8a5', vm='VM [stud-c7-1]'}), log id: 
71d599f2
2019-05-14 13:26:46,809+02 INFO  
[org.ovirt.engine.core.vdsbroker.vdsbroker.CreateBrokerVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] START, 
CreateBrokerVDSCommand(HostName = studvirt1, 
CreateVDSCommandParameters:{hostId='eec7ec2b-cae1-4bb9-b933-4dff47a70bdb', 
vmId='d8a99676-d520-425e-9974-1b1efe6da8a5', vm='VM [stud-c7-1]'}), log id: 
3aa6b5ff
2019-05-14 13:26:46,836+02 INFO  
[org.ovirt.engine.core.vdsbroker.builder.vminfo.VmInfoBuildUtils] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Kernel FIPS - Guid: 
eec7ec2b-cae1-4bb9-b933-4dff47a70bdb fips: false
2019-05-14 13:26:46,903+02 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateBrokerVDSCommand] (default task-6) 
[e3c5745c-e593-4aed-ba67-b173808140e8] VM <?xml version="1.0" encoding="UTF-8"?><domain type="kvm" 
xmlns:ovirt-tune="http://ovirt.org/vm/tune/1.0"; xmlns:ovirt-vm="http://ovirt.org/vm/1.0";>
[domain xml stripped]
2019-05-14 13:26:46,928+02 INFO  
[org.ovirt.engine.core.vdsbroker.vdsbroker.CreateBrokerVDSCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] FINISH, CreateBrokerVDSCommand, 
return: , log id: 3aa6b5ff
2019-05-14 13:26:46,932+02 INFO  
[org.ovirt.engine.core.vdsbroker.CreateVDSCommand] (default task-6) 
[e3c5745c-e593-4aed-ba67-b173808140e8] FINISH, CreateVDSCommand, return: 
WaitForLaunch, log id: 71d599f2
2019-05-14 13:26:46,932+02 INFO  [org.ovirt.engine.core.bll.RunVmCommand] 
(default task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Lock freed to object 
'EngineLock:{exclusiveLocks='[a5bed59c-d2fe-4fe4-bff7-52efe089ebd6=USER_VM_POOL]',
 sharedLocks=''}'

-> it has released lock2

2019-05-14 13:26:47,004+02 INFO  
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] EVENT_ID: 
VDS_INITIATED_RUN_VM(506), Trying to restart VM stud-c7-1 on Host studvirt1
2019-05-14 13:26:47,094+02 INFO  
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] EVENT_ID: 
USER_ATTACH_USER_TO_VM_FROM_POOL(316), Attaching User u0045469 to VM stud-c7-1 in VM 
Pool stud-c7-? was initiated [email protected]  
<mailto:[email protected]>.
2019-05-14 13:26:47,098+02 WARN  
[org.ovirt.engine.core.bll.lock.InMemoryLockManager] (default task-6) 
[e3c5745c-e593-4aed-ba67-b173808140e8] Trying to release exclusive lock which 
does not exist, lock key: 'a5bed59c-d2fe-4fe4-bff7-52efe089ebd6USER_VM_POOL'

-> it's trying to release the same lock2 as above and failing

2019-05-14 13:26:47,098+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default 
task-6) [e3c5745c-e593-4aed-ba67-b173808140e8] Lock freed to object 
'EngineLock:{exclusiveLocks='[a5bed59c-d2fe-4fe4-bff7-52efe089ebd6=USER_VM_POOL]',
 sharedLocks=''}'

-> now it's indicating that it released/freed the lock (lock2)

2019-05-14 13:26:48,518+02 INFO  
[org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-3) 
[e3c5745c-e593-4aed-ba67-b173808140e8] Command 'AttachUserToVmFromPoolAndRun' 
id: '0148c91d-b053-4dc9-960c-f10bf0d3f343' child commands 
'[0470802d-09fa-4579-b95b-3d9603feff7b, 47dbfc58-3bae-4229-96eb-d1fc08911237]' 
executions were completed, status 'SUCCEEDED'
2019-05-14 13:26:49,584+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-14) 
[e3c5745c-e593-4aed-ba67-b173808140e8] Ending command 
'org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand' successfully.
2019-05-14 13:26:49,650+02 INFO  
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engineScheduled-Thread-14) 
[e3c5745c-e593-4aed-ba67-b173808140e8] EVENT_ID: 
USER_ATTACH_USER_TO_VM_FROM_POOL_FINISHED_SUCCESS(318), User u0045469 
successfully attached to VM stud-c7-1 in VM Pool stud-c7-?.
2019-05-14 13:26:50,584+02 INFO  
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(ForkJoinPool-1-worker-2) [] EVENT_ID: VM_CONSOLE_DISCONNECTED(168), User 
<UNKNOWN> got disconnected from VM stud-c7-1.
2019-05-14 13:26:50,585+02 INFO  
[org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-2) 
[] VM 'd8a99676-d520-425e-9974-1b1efe6da8a5'(stud-c7-1) moved from 'WaitForLaunch' 
--> 'PoweringUp'


The first lock (on the pool itself) is never released. It seems this lock 
should also be released? Maybe it's this lock that should be released the 
second time (instead of the second lock twice)?



When we start to launch another instance of the pool it fails:

2019-05-14 13:49:32,656+02 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (default 
task-11) [55cc0796-4f53-49cd-8739-3b7e7dd2d95b] START, 
IsVmDuringInitiatingVDSCommand( 
IsVmDuringInitiatingVDSCommandParameters:{vmId='d8a99676-d520-425e-9974-1b1efe6da8a5'}),
 log id: 7db2f4fc
2019-05-14 13:49:32,656+02 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (default 
task-11) [55cc0796-4f53-49cd-8739-3b7e7dd2d95b] FINISH, 
IsVmDuringInitiatingVDSCommand, return: false, log id: 7db2f4fc
2019-05-14 13:49:32,688+02 INFO  [org.ovirt.engine.core.bll.VmPoolHandler] 
(default task-11) [55cc0796-4f53-49cd-8739-3b7e7dd2d95b] Failed to Acquire Lock 
to object 
'EngineLock:{exclusiveLocks='[d8a99676-d520-425e-9974-1b1efe6da8a5=VM]', 
sharedLocks=''}'
2019-05-14 13:49:32,700+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default 
task-11) [55cc0796-4f53-49cd-8739-3b7e7dd2d95b] Lock Acquired to object 
'EngineLock:{exclusiveLocks='[a5bed59c-d2fe-4fe4-bff7-52efe089ebd6=USER_VM_POOL]',
 sharedLocks=''}'
2019-05-14 13:49:32,700+02 WARN  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default task-11) 
[55cc0796-4f53-49cd-8739-3b7e7dd2d95b] Validation of action 
'AttachUserToVmFromPoolAndRun' failed for [email protected]  
<mailto:[email protected]>. Reasons: 
VAR__ACTION__ALLOCATE_AND_RUN,VAR__TYPE__VM_FROM_VM_POOL,ACTION_TYPE_FAILED_NO_AVAILABLE_POOL_VMS
2019-05-14 13:49:32,700+02 INFO  
[org.ovirt.engine.core.bll.AttachUserToVmFromPoolAndRunCommand] (default 
task-11) [55cc0796-4f53-49cd-8739-3b7e7dd2d95b] Lock freed to object 
'EngineLock:{exclusiveLocks='[a5bed59c-d2fe-4fe4-bff7-52efe089ebd6=USER_VM_POOL]',
 sharedLocks=''}'
2019-05-14 13:49:32,706+02 ERROR 
[org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default 
task-11) [] Operation Failed: [Cannot allocate and run VM from VM-Pool. There 
are no available VMs in the VM-Pool.]


Regards,
Rik


--
Rik Theys
System Engineer
KU Leuven - Dept. Elektrotechniek (ESAT)
Kasteelpark Arenberg 10 bus 2440  - B-3001 Leuven-Heverlee
+32(0)16/32.11.07
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Thank you
Lucie

--
Lucie Leistnerova
Quality Engineer, QE Cloud, RHVM
Red Hat EMEA

IRC: lleistne @ #rhev-qe

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