Bug 2001786
| Summary: | Migration fails during "Stage Backup" step because volume path on host not found | ||
|---|---|---|---|
| Product: | Migration Toolkit for Containers | Reporter: | Prasad Joshi <prajoshi> |
| Component: | Controller | Assignee: | Pranav Gaikwad <pgaikwad> |
| Status: | CLOSED ERRATA | QA Contact: | Xin jiang <xjiang> |
| Severity: | urgent | Docs Contact: | Avital Pinnick <apinnick> |
| Priority: | urgent | ||
| Version: | 1.6.0 | CC: | ernelson, prajoshi, rjohnson, sregidor, ssingla, xjiang |
| Target Milestone: | --- | ||
| Target Release: | 1.6.0 | ||
| 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: | 2021-09-29 14:35:53 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: | |||
It failed in IDVM, IDIM Indirect migration often failed due to this bug. verified with mtc 1.6.0 registry.redhat.io/rhmtc/openshift-migration-controller-rhel8@sha256:3b5efa9c8197fe0313a2ab7eb184d135ba9749c9a4f0d15a6abb11c0d18b9194 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: Migration Toolkit for Containers (MTC) 1.6.0 security & bugfix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2021:3694 |
Description of problem: When we execute migration it is failing at the StageBackup step. PodVolumeBackup is failed due to 'error getting volume path on host: expected one matching path, got 0' Version-Release number of selected component (if applicable): SOURCE CLUSTER: Azure OCP 4.6 (MTC 1.6.0) TARGET CLUSTER: Azure OCP 4.9 (MTC 1.6.0) REPLICATION REPOSITORY: Azure Blob Storage How reproducible: Always Steps to Reproduce: 1. In source cluster create django application $ oc new-project ocp-40299-cancelrollback $ oc new-app django-psql-persistent 2. Go to the MTC UI and create a migration plan for this namespace. 3. Execute stage migration 4. Execute Cutover migration Actual results: Migration is completed with warning. Backup is partiallyFailed and PodVolumeBackup failed due to 'error getting volume path on host: expected one matching path, got 0' Expected results: StageBackup step should be completed without any failure. Additional info: oc get backup migration-614c4-stage-z2shw -n openshift-migration -o yaml status: completionTimestamp: "2021-09-06T10:45:38Z" errors: 1 expiration: "2021-10-06T10:45:23Z" formatVersion: 1.1.0 phase: PartiallyFailed progress: itemsBackedUp: 6 totalItems: 6 startTimestamp: "2021-09-06T10:45:23Z" version: 1 oc get podvolumebackup migration-614c4-stage-z2shw-qstbx -n openshift-migration -o yaml status: completionTimestamp: "2021-09-06T10:45:37Z" message: 'error getting volume path on host: expected one matching path, got 0' phase: Failed progress: {} startTimestamp: "2021-09-06T10:45:37Z" oc get migmigration migration-614c4 -n openshift-migration -o yaml status: conditions: - category: Warn durable: true lastTransitionTime: "2021-09-06T10:45:39Z" message: 'Stage Backup openshift-migration/migration-614c4-stage-z2shw: partially failed on source cluster' status: "True" type: VeleroStageBackupPartiallyFailed - category: Advisory durable: true lastTransitionTime: "2021-09-06T10:46:36Z" message: The migration has completed with warnings, please look at `Warn` conditions. reason: Completed status: "True" type: SucceededWithWarnings itinerary: Final observedDigest: b6379d5e70f2e9f71791cd922a3b0e6e305a78498919ce72207017d20e61278b phase: Completed pipeline: - completed: "2021-09-06T10:44:42Z" message: Completed name: Prepare started: "2021-09-06T10:44:15Z" - completed: "2021-09-06T10:45:05Z" message: Completed name: Backup progress: - 'Backup openshift-migration/migration-614c4-initial-ddsvp: 44 out of estimated total of 44 objects backed up (20s)' started: "2021-09-06T10:44:42Z" - completed: "2021-09-06T10:45:46Z" message: Completed name: StageBackup progress: - 'Backup openshift-migration/migration-614c4-stage-z2shw: partially failed. 6 out of estimated total of 6 objects backed up (15s)' - 'PodVolumeBackup openshift-migration/migration-614c4-stage-z2shw-qstbx: Failed. 0 bytes out of 0 bytes backed up (0s)' started: "2021-09-06T10:45:05Z" - completed: "2021-09-06T10:46:24Z" message: Completed name: StageRestore progress: - 'Restore openshift-migration/migration-614c4-stage-6h5dn: 4 out of estimated total of 4 objects restored (2s)' - stage-postgresql-fd4km is missing. Migration might fail started: "2021-09-06T10:45:46Z"