Bug 1740201
| Summary: | Migration from gluster to ceph results in empty volume | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Sergio <sregidor> |
| Component: | Migration Tooling | Assignee: | Scott Seago <sseago> |
| Status: | CLOSED ERRATA | QA Contact: | Sergio <sregidor> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4.2.0 | CC: | chezhang, dwhatley, dymurray, jmatthew, jortel, rpattath |
| Target Milestone: | --- | ||
| Target Release: | 4.2.0 | ||
| 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: | 2019-10-16 06:35:39 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: | |||
I suspect this issue was resolved from upstream issues Scott/Dylan worked with Velero 1.1 beta and CSI issues. Will defer to Scott to share more info. I verified that the bug is fixed using
Controller:
image: quay.io/ocpmigrate/mig-controller:stable
imageID: quay.io/ocpmigrate/mig-controller@sha256:7ec48a557240f1d2fa6ee6cd62234b0e75f178eca2a0cc5b95124e01bcd2c114
Velero:
image: quay.io/ocpmigrate/velero:stable
imageID: quay.io/ocpmigrate/velero@sha256:957725dec5f0fb6a46dee78bd49de9ec4ab66903eabb4561b62ad8f4ad9e6f05
image: quay.io/ocpmigrate/migration-plugin:stable
imageID: quay.io/ocpmigrate/migration-plugin@sha256:b4493d826260eb1e3e02ba935aaedfd5310fefefb461ca7dcd9a5d55d4aa8f35
OCP4
NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
version 4.2.0-0.nightly-2019-09-08-232045 True False 123m Cluster version is 4.2.0-0.nightly-2019-09-08-232045
OCP3
oc v3.11.144
kubernetes v1.11.0+d4cacc0
The volumes have now the right content.
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, 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/RHBA-2019:2922 |
Description of problem: Migrating a volume from gluster to ceph does not migrate the content of the volume. The volume is empty. Version-Release number of selected component (if applicable): OCP4 Server Version: version.Info{Major:"1", Minor:"13+", GitVersion:"v1.13.4+838b4fa", GitCommit:"838b4fa", GitTreeState:"clean", BuildDate:"2019-05-19T23:51:04Z", GoVersion:"go1.11.5", Compiler:"gc", Platform:"linux/amd64"} OC3 oc v3.11.126 kubernetes v1.11.0+d4cacc0 features: Basic-Auth GSSAPI Kerberos SPNEGO Server https://XX.XXXX-XXXXXX.X.XXXXXXX.XXXXXXXX.XX:XX openshift v3.11.104 kubernetes v1.11.0+d4cacc0 velero image: quay.io/ocpmigrate/velero:fusor-dev imageID: quay.io/ocpmigrate/velero@sha256:b707ae4f22ba1828ca6f9992b190134eaef145364cb57146d84616ccefdafbb7 image: quay.io/ocpmigrate/migration-plugin:latest imageID: quay.io/ocpmigrate/migration-plugin@sha256:d34af290b3c6d808ad360a1f2d41d91e06bff5aa912f9a5a78fed3ea2f0f8f71 deployment.kubernetes.io/revision: "1" operator image: quay.io/ocpmigrate/mig-operator:latest imageID: quay.io/ocpmigrate/mig-operator@sha256:0da94766a038b835c47a97baea740bca2583a188b9f30ad2c76768562a53d386 How reproducible: Steps to Reproduce: 1. Create this application, for instance https://gist.githubusercontent.com/jwmatthews/b0432300864c5bf71736c8647fec72bb/raw/7c5723bcb06c8a11591b2ccb313322c8f3261623/nginx_with_pv.ym And modify it to use gluster if necessary $ oc get pvc NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE nginx-logs Bound pvc-a27f3547-bcf7-11e9-806b-0ad64299291c 1Gi RWO glusterfs-storage 28m 2. Curl the exposed nginx route $ curl $(oc get route my-nginx -n nginx-example -o jsonpath='{.spec.host}') 3. Verify that the log is writing information in the volume oc -n nginx-example rsh $(oc get pods -n nginx-example -o jsonpath='{.items[0].metadata.name}') cat /var/log/nginx/access.log X.XXX.XX.X - - [12/Aug/2019:11:52:53 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "X.XXX.XX.X" X.XXX.XX.X - - [12/Aug/2019:11:53:03 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "X.XXX.XX.X" 4. Migrate the volume to ceph, with this information in the migration plan persistentVolumes: - capacity: 1Gi name: pvc-a27f3547-bcf7-11e9-806b-0ad64299291c pvc: accessModes: - ReadWriteOnce name: nginx-logs namespace: nginx-example selection: action: copy storageClass: csi-rbd storageClass: glusterfs-storage supported: actions: - copy - move Actual results: 4. After the migration the volume is empty Expected results: 5. The volume should contain the information written before migration in the log files. Additional info: