Bug 831340
| Summary: | [RHEV] Exception "Cannot find master domain: 'spUUID=<UID>, msdUUID=None'" during export domain attach | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Raul Cheleguini <rcheleguini> |
| Component: | vdsm | Assignee: | Ayal Baron <abaron> |
| Status: | CLOSED DUPLICATE | QA Contact: | Haim <hateya> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.2 | CC: | abaron, bazulay, iheim, jmunilla, yeylon, ykaul |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | storage | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-06-13 06:33:31 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** This bug has been marked as a duplicate of bug 820557 *** |
Description of problem: RHEV-Manager will return the exception "Cannot find master domain (Error code: 304)" on the following situations: * NFS share when the export domain was added has been removed or moved. * The directory created by RHEV (Example: /exports/e2ccb5ec-9d37-424a-90ef-f0f0403798e3) has been renamed, deleted or moved. SPM will look for the export domain on block storage domains and it will ignore file based storage domains. Exception on SPM/vdsmd log: Thread-128053::DEBUG::2012-06-08 14:21:54,314::lvm::374::Storage.Misc.excCmd::(cmd) SUCCESS: <err> = ''; <rc> = 0 Thread-128053::DEBUG::2012-06-08 14:21:54,317::lvm::466::OperationMutex::(_reloadvgs) Operation 'lvm reload operation' released the operation mutex Thread-128053::ERROR::2012-06-08 14:21:54,323::task::868::TaskManager.Task::(_setError) Unexpected error Traceback (most recent call last): File "/usr/share/vdsm/storage/task.py", line 876, in _run File "/usr/share/vdsm/storage/spm.py", line 115, in run File "/usr/share/vdsm/storage/spm.py", line 1078, in public_attachStorageDomain File "/usr/share/vdsm/storage/sp.py", line 912, in refresh File "/usr/share/vdsm/storage/sp.py", line 842, in __rebuild File "/usr/share/vdsm/storage/sp.py", line 1150, in getMasterDomain StoragePoolMasterNotFound: Cannot find master domain: 'spUUID=e2ccb5ec-9d37-424a-90ef-f0f0403798e3, msdUUID=None' Version-Release number of selected component (if applicable): vdsm-4.9-112.6.el6_2.x86_64 rhevm-3.0.2_0001-2.el6.x86_64 How reproducible/Steps to Reproduce. 1) Add an NFS share as an export domain which will attach it to the DC automatically. 2) Detach the export domain. 3) Remove or rename the directory structure completely from the backend NFS server, example: rhev3m ~]# tree /export-domain/ /export-domain/ └── cb23b081-8e96-4196-8b39-df967075081c ├── dom_md │ ├── ids │ ├── inbox │ ├── leases │ ├── metadata │ └── outbox ├── images └── master ├── tasks └── vms rhev3m export-domain]# mv cb23b081-8e96-4196-8b39-df967075081c test rhev3m export-domain]# tree . . └── test ├── dom_md │ ├── ids │ ├── inbox │ ├── leases │ ├── metadata │ └── outbox ├── images └── master ├── tasks └── vms Directory names seems to be essential to vdsmd, and after rename the directory which has the export domain UID as name, vdsmd ignored the metadata file and returns the unexpected exception: 4) Try to attach the NFS share to the DC again. Actual results: The attach operation will be canceled and the exception "Cannot find master domain (Error code: 304)" will be returned. This can be confused/misunderstood since the issue occurs even with an active Master Domain on Data Center. Expected results: RHEV returning a more coherent exception, something like "Cannot find export domain...", or use "dom_md/metadata" as a second reference.