Hi,

I have 2-host oVirt setup with 2 Data Centers, one with local storage domain 
(DC #1) for VMs + Export domain on NFS, another with all NFS shared (DC #2).
Trying to export VMs from DC #1 to DC #2.
VMs are exported to DC #1 export domain (NFS), then domain put into maintenance 
mode and detached from DC #1.

Unfortunately, attaching it to DC #2 failed. Logs attached. Tried to run this 
command twice.
Workaround are possible in order to accomplish this task, yet it would be 
better to do in a way as it was designed.
Thanks.


2018-03-21 10:43:24,024+02 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-128904) 
[570ec5d9-fff5-4656-afbd-90b3207a616e] EVENT_ID: 
USER_ATTACH_STORAGE_DOMAIN_TO_POOL_FAILED(963), Failed to attach Storage Domain 
node10-NFS-EXPORTS to Data Center StrDataCenter11. (User: admin@internal-authz)
2018-03-21 10:46:16,512+02 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-128956) [1435fc81] EVENT_ID: 
VDS_STORAGES_CONNECTION_FAILED(188), Failed to connect Host node11 to the 
Storage Domains node10-NFS-EXPORTS.
2018-03-21 10:46:16,651+02 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-128955) 
[a81ffa4a-5a58-41a0-888a-f0edc321609b] EVENT_ID: 
USER_ATTACH_STORAGE_DOMAIN_TO_POOL_FAILED(963), Failed to attach Storage Domain 
node10-NFS-EXPORTS to Data Center StrDataCenter11. (User: admin@internal-authz)


tail -n 1000 engine.log | grep 570ec5d9-fff5-4656-afbd-90b3207a616e
2018-03-21 10:41:14,643+02 INFO  
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(default task-2) [570ec5d9-fff5-4656-afbd-90b3207a616e] Lock Acquired to object 
'EngineLock:{exclusiveLocks='[1d7208ce-d3a1-4406-9638-fe7051562994=STORAGE]', 
sharedLocks=''}'
2018-03-21 10:41:16,129+02 INFO  
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(EE-ManagedThreadFactory-engine-Thread-128904) 
[570ec5d9-fff5-4656-afbd-90b3207a616e] Running command: 
AttachStorageDomainToPoolCommand internal: false. Entities affected :  ID: 
1d7208ce-d3a1-4406-9638-fe7051562994 Type: StorageAction group 
MANIPULATE_STORAGE_DOMAIN with role type ADMIN,  ID: 
80cc922f-8dea-4fed-b951-1060ba116ad5 Type: StoragePoolAction group 
MANIPULATE_STORAGE_DOMAIN with role type ADMIN
2018-03-21 10:43:23,564+02 ERROR 
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(EE-ManagedThreadFactory-engine-Thread-128904) 
[570ec5d9-fff5-4656-afbd-90b3207a616e] Cannot connect storage connection 
server, aborting attach storage domain operation.
2018-03-21 10:43:23,567+02 INFO  [org.ovirt.engine.core.bll.CommandCompensator] 
(EE-ManagedThreadFactory-engine-Thread-128904) 
[570ec5d9-fff5-4656-afbd-90b3207a616e] Command 
[id=921ca7cd-4f93-46aa-8de2-91b13b8f96cb]: Compensating NEW_ENTITY_ID of 
org.ovirt.engine.core.common.businessentities.StoragePoolIsoMap; snapshot: 
StoragePoolIsoMapId:{storagePoolId='80cc922f-8dea-4fed-b951-1060ba116ad5', 
storageId='1d7208ce-d3a1-4406-9638-fe7051562994'}.
2018-03-21 10:43:24,024+02 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-128904) 
[570ec5d9-fff5-4656-afbd-90b3207a616e] EVENT_ID: 
USER_ATTACH_STORAGE_DOMAIN_TO_POOL_FAILED(963), Failed to attach Storage Domain 
node10-NFS-EXPORTS to Data Center StrDataCenter11. (User: admin@internal-authz)
2018-03-21 10:43:24,114+02 INFO  
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(EE-ManagedThreadFactory-engine-Thread-128904) 
[570ec5d9-fff5-4656-afbd-90b3207a616e] Lock freed to object 
'EngineLock:{exclusiveLocks='[1d7208ce-d3a1-4406-9638-fe7051562994=STORAGE]', 
sharedLocks=''}'



[root@node00 ovirt-engine]# tail -n 1000 engine.log | grep 
a81ffa4a-5a58-41a0-888a-f0edc321609b
2018-03-21 10:44:11,025+02 INFO  
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(default task-16) [a81ffa4a-5a58-41a0-888a-f0edc321609b] Lock Acquired to 
object 
'EngineLock:{exclusiveLocks='[1d7208ce-d3a1-4406-9638-fe7051562994=STORAGE]', 
sharedLocks=''}'
2018-03-21 10:44:11,236+02 INFO  
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(EE-ManagedThreadFactory-engine-Thread-128955) 
[a81ffa4a-5a58-41a0-888a-f0edc321609b] Running command: 
AttachStorageDomainToPoolCommand internal: false. Entities affected :  ID: 
1d7208ce-d3a1-4406-9638-fe7051562994 Type: StorageAction group 
MANIPULATE_STORAGE_DOMAIN with role type ADMIN,  ID: 
80cc922f-8dea-4fed-b951-1060ba116ad5 Type: StoragePoolAction group 
MANIPULATE_STORAGE_DOMAIN with role type ADMIN
2018-03-21 10:46:16,567+02 ERROR 
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(EE-ManagedThreadFactory-engine-Thread-128955) 
[a81ffa4a-5a58-41a0-888a-f0edc321609b] Cannot connect storage connection 
server, aborting attach storage domain operation.
2018-03-21 10:46:16,568+02 INFO  [org.ovirt.engine.core.bll.CommandCompensator] 
(EE-ManagedThreadFactory-engine-Thread-128955) 
[a81ffa4a-5a58-41a0-888a-f0edc321609b] Command 
[id=b5c25100-1a8a-4db0-9509-99cfa60995b1]: Compensating NEW_ENTITY_ID of 
org.ovirt.engine.core.common.businessentities.StoragePoolIsoMap; snapshot: 
StoragePoolIsoMapId:{storagePoolId='80cc922f-8dea-4fed-b951-1060ba116ad5', 
storageId='1d7208ce-d3a1-4406-9638-fe7051562994'}.
2018-03-21 10:46:16,651+02 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-128955) 
[a81ffa4a-5a58-41a0-888a-f0edc321609b] EVENT_ID: 
USER_ATTACH_STORAGE_DOMAIN_TO_POOL_FAILED(963), Failed to attach Storage Domain 
node10-NFS-EXPORTS to Data Center StrDataCenter11. (User: admin@internal-authz)
2018-03-21 10:46:16,681+02 INFO  
[org.ovirt.engine.core.bll.storage.domain.AttachStorageDomainToPoolCommand] 
(EE-ManagedThreadFactory-engine-Thread-128955) 
[a81ffa4a-5a58-41a0-888a-f0edc321609b] Lock freed to object 
'EngineLock:{exclusiveLocks='[1d7208ce-d3a1-4406-9638-fe7051562994=STORAGE]', 
sharedLocks='’}'

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