Bug 1482474
| Summary: | [Memory hot unplug] LookupError: Device instance for device identified by alias dimm6 and type memory not found | ||||||||
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| Product: | [oVirt] ovirt-engine | Reporter: | Israel Pinto <ipinto> | ||||||
| Component: | BLL.Virt | Assignee: | jniederm | ||||||
| Status: | CLOSED WORKSFORME | QA Contact: | Israel Pinto <ipinto> | ||||||
| Severity: | medium | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 4.2.0 | CC: | bugs, ipinto, michal.skrivanek | ||||||
| Target Milestone: | ovirt-4.2.0 | Flags: | michal.skrivanek:
ovirt-4.2?
rule-engine: planning_ack+ ipinto: devel_ack? ipinto: 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: | 2017-09-20 13:59:15 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: | |||||||||
| Bug Depends On: | |||||||||
| Bug Blocks: | 1228543 | ||||||||
| Attachments: |
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Hi Israel, the error was caused by asking for hot unplug of particular dimm two times withing 10 seconds. Both engine and vdsm logs show: * request for unplug of dimm6 at 2017-08-17 10:44:44 * completion of this request at 2017-08-17 10:44:48 * another request for unplug of dimm6 at 2017-08-17 10:44:54, just 10 seconds after the previous one However UI is not supposed to allow that and I struggle replicate that. The Hot Unplug button is supposed to remain disabled for 15 seconds after being pressed. Can you replicate that? I recheck it It not possible to do unplug twice to the same device, see attached screenshot. The device is block after you unplug it. Created attachment 1319885 [details]
VM devices - unplug memory
Hi, can you reproduce this bug according to Steps to reproduce? I haven't managed to reproduce this problem. Hi, I recheck it with version [1] and it not possible to unplug the same device twice, while unplug the memory device the device is blocked from the GUI. So it not reproduced. see attached screenshot. [1] Software version:4.2.0-0.0.master.20170911195522.git5ddba50.el7.centos |
Created attachment 1314642 [details] logs Description of problem: Failed to hot unplug memory device. with error: LookupError: Device instance for device identified by alias dimm6 and type memory not found Version-Release number of selected component (if applicable): Software version:4.2.0-0.0.master.20170813134654.gitaee967b.el7.centos Steps to Reproduce: 1. Create VM with OS with 4GB, Run VM 2. Hotplug about 6GB of memory (With different sizes) have at least 10 memory devices 3. Run on VM 2 load process with 4.5 GB each 4. Start Hot unplug memory. Actual results: After unplug of 5 GB tone of the process on VM stopped, Continue to remove memory and in the last one got the error. Happened once. Additional info: VDSM log: 2017-08-17 10:44:54,902+0300 INFO (jsonrpc/6) [vdsm.api] START hotunplugMemory(params={'vmId': 'b9cad82e-2708-4b14-9392-7ea66959d38f', 'memory': {'node': 0, 'specParams': {'node': '0', 'size': '131072'}, 'alias': 'dimm6', 'deviceId': '65d028d7-d507-4002-881f-8636ed9bf6c4', 'address': {'slot': '6', 'base': '0x230000000', 'type': 'dimm'}, 'device': 'memory', 'type': 'memory', 'size': 131072}}) from=::ffff:10.35.161.243,50070, flow_id=737c87a4-0f99-481a-b5a8-766610376961 (api:46) 2017-08-17 10:44:54,903+0300 INFO (jsonrpc/6) [vdsm.api] FINISH hotunplugMemory error=Device instance for device identified by alias dimm6 and type memory not found from=::ffff:10.35.161.243,50070, flow_id=737c87a4-0f99-481a-b5a8-766610376961 (api:50) 2017-08-17 10:44:54,904+0300 ERROR (jsonrpc/6) [api] FINISH hotunplugMemory error=Device instance for device identified by alias dimm6 and type memory not found (api:127) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 117, in method ret = func(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/API.py", line 404, in hotunplugMemory return self.vm.hotunplugMemory(params) File "<string>", line 2, in hotunplugMemory File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 48, in method ret = func(*args, **kwargs) File "<string>", line 2, in hotunplugMemory File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 94, in method return func(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 3069, in hotunplugMemory self._devices, hwclass.MEMORY, params['memory']['alias']) File "/usr/lib/python2.7/site-packages/vdsm/virt/vmdevices/common.py", line 104, in lookup_device_by_alias 'and type %s not found' % (alias, dev_type,)) LookupError: Device instance for device identified by alias dimm6 and type memory not found 2017-08-17 10:44:54,914+0300 INFO (jsonrpc/6) [jsonrpc.JsonRpcServer] RPC call VM.hotunplugMemory failed (error 100) in 0.01 seconds (__init__:604) Engine log: 2017-08-17 10:44:54,895+03 INFO [org.ovirt.engine.core.vdsbroker.HotUnplugMemoryVDSCommand] (default task-10) [737c87a4-0f99-481a-b5a8-766610376961] START, HotUnplugMemoryVDSCommand(HostName = host_mixed_1, Params:{hostId='a582cc45-5d8c-40ab-8600-5e12476d1c52'}), log id: 1e0eedbb 2017-08-17 10:44:54,918+03 ERROR [org.ovirt.engine.core.vdsbroker.HotUnplugMemoryVDSCommand] (default task-10) [737c87a4-0f99-481a-b5a8-766610376961] Failed in 'HotUnplugMemoryVDS' method 2017-08-17 10:44:54,926+03 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-10) [737c87a4-0f99-481a-b5a8-766610376961] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM host_mixed_1 command HotUnplugMemoryVDS failed: General Exception: ('Device instance for device identified by alias dimm6 and type memory not found',) 2017-08-17 10:44:54,926+03 ERROR [org.ovirt.engine.core.vdsbroker.HotUnplugMemoryVDSCommand] (default task-10) [737c87a4-0f99-481a-b5a8-766610376961] Command 'HotUnplugMemoryVDSCommand(HostName = host_mixed_1, Params:{hostId='a582cc45-5d8c-40ab-8600-5e12476d1c52'})' execution failed: VDSGenericException: VDSErrorException: Failed to HotUnplugMemoryVDS, error = General Exception: ('Device instance for device identified by alias dimm6 and type memory not found',), code = 100 2017-08-17 10:44:54,927+03 INFO [org.ovirt.engine.core.vdsbroker.HotUnplugMemoryVDSCommand] (default task-10) [737c87a4-0f99-481a-b5a8-766610376961] FINISH, HotUnplugMemoryVDSCommand, log id: 1e0eedbb 2017-08-17 10:44:54,959+03 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-10) [737c87a4-0f99-481a-b5a8-766610376961] EVENT_ID: MEMORY_HOT_UNPLUG_FAILED(2,047), Failed to hot unplug memory device (65d028d7-d507-4002-881f-8636ed9bf6c4) of size 131072 out of VM 'test_memory_hotplug': General Exception: ('Device instance for device identified by alias dimm6 and type memory not found',)