Bug 1368942
| Summary: | Cpu hotplug is failing on a vm with 3.6 cluster compatibility version after cluster upgrade to 4.0 | ||||||
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| Product: | [oVirt] ovirt-engine | Reporter: | sefi litmanovich <slitmano> | ||||
| Component: | BLL.Virt | Assignee: | Michal Skrivanek <michal.skrivanek> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | meital avital <mavital> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 4.0.2.7 | CC: | bugs | ||||
| Target Milestone: | --- | Flags: | rule-engine:
planning_ack?
rule-engine: devel_ack? rule-engine: testing_ack? |
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| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2016-08-22 10:50:55 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | Virt | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Made a mistake, did not realize that by default on rhevm-4.0 cpu hot plug is turned off for 3.6 compatibility with x86_64. After setting it to true via engine-config and re starting the vm with 3.6 cluster compatibility version, cpu hot plug worked. |
Created attachment 1192813 [details] engine log Description of problem: Setup: rhevm-4.0.2.7-0.1.el7ev.noarch DC-Cluster 3.6 with 2 hosts with: vdsm-4.17.33-1. Created a rhel-7.2 vm set to custom cluster compatibility 3.6, vm has 1 cpu. Upgraded the hosts to 4.0: vdsm-4.18.11-1.el7ev.x86_64 , one by one (migrating the vm between them). Finally upgraded the cluster and dc to 4.0 successfully. After upgrade vm is marked to reboot and still has custom cluster compatibility 3.6. Trying to hotplug another cpu (setting sockets to 2) fails with an error: "Failed to hot set number of CPUS to VM test-vm-clone-2. Underlying error message: Hot plugging a CPU is not supported for cluster version 3.6 and architecture x86_64" From engine.log 2016-08-21 18:14:17,988 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-11) [72e82ba8] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: Failed to hot set number of CPUS to VM test-vm-clone-2. Underlying error message: Hot plugging a CPU is not supported for cluster version 3.6 and architecture x86_64. 2016-08-21 18:14:18,020 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-11) [72e82ba8] Correlation ID: 299904bb, Job ID: 39186ef5-a619-422e-94dd-b74981887871, Call Stack: null, Custom Event ID: -1, Message: VM test-vm-clone-2 configuration was updated by admin@internal-authz. 2016-08-21 18:14:18,025 INFO [org.ovirt.engine.core.bll.UpdateVmCommand] (default task-11) [72e82ba8] Lock freed to object 'EngineLock:{exclusiveLocks='[test-vm-clone-2=<VM_NAME, ACTION_TYPE_FAILED_VM_IS_BEING_UPDATED>]', sharedLocks='[fc68f70c-792b-4006-9d64-8887fd716036=<VM, ACTION_TYPE_FAILED_VM_IS_BEING_UPDATED>]'}' Version-Release number of selected component (if applicable): rhevm-4.0.2.7-0.1.el7ev.noarch How reproducible: re produced with several vms. Steps to Reproduce: as mentioned above. Actual results: Fails to add cpu to vm. Expected results: cpu is added to vm instantly. Additional info: