Salvatore Sciacco created CLOUDSTACK-6460: ---------------------------------------------
Summary: Migration of CLVM volumes to another primary storage fail Key: CLOUDSTACK-6460 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6460 Project: CloudStack Issue Type: Bug Security Level: Public (Anyone can view this level - this is the default.) Components: KVM, Volumes Affects Versions: 4.2.0 Environment: KVM clusters with fiber channel SAN storage, CLVM volumes Reporter: Salvatore Sciacco ACS version: 4.2.1 Hypervisors: KVM Storage pool type: CLVM Since we upgraded from 4.1 to 4.2.1 moving volumes to a different primary storage pool fail. I've enabled debug on the agents side and I think there is a problem with the format type conversion Volume on database had format QCOW2 these are the parameters for the first step (CLVM -> NFS): {quote} "srcTO":{"org.apache.cloudstack.storage.to.VolumeObjectTO": "uuid":"cda46430-52d7-4bf0-b0c2-adfc78dd011c","volumeType":"ROOT","dataStore":{"org.apache.cloudstack.storage.to.PrimaryDataStoreTO":"uuid":"655d6965-b3f3-4118-a970-d50cf6afc365","id":211,"poolType":"CLVM","host":"localhost","path":"/FC10KY1","port":0,"name":"ROOT-4450","size":5368709120,"path":"39a25daf-23a1-4b65-99ac-fb98469ac197","volumeId":5937,"vmName":"i-402-4450-VM","accountId":402,"format":"QCOW2","id":5937,"hypervisorType":"KVM"} "destTO":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"cda46430-52d7-4bf0-b0c2-adfc78dd011c","volumeType":"ROOT","dataStore":{"com.cloud.agent.api.to.NfsTO": "_url":"nfs://192.168.11.6/home/a1iwstack","_role":"Image"},"name":"ROOT-4450","size":5368709120,"path":"volumes/402/5937","volumeId":5937,"vmName":"i-402-4450-VM","accountId":402,"format":"QCOW2","id":5937,"hypervisorType":"KVM"} {quote} Those commads are translated into the agent: {quote} DEBUG [utils.script.Script] (agentRequest-Handler-1:null) Executing: qemu-img info /dev/FC10KY1/39a25daf-23a1-4b65-99ac-fb98469ac197 DEBUG [utils.script.Script] (agentRequest-Handler-1:null) Execution is successful. DEBUG [utils.script.Script] (agentRequest-Handler-1:null) Executing: /bin/bash -c cp -f /dev/FC10KY1/39a25daf-23a1-4b65-99ac-fb98469ac197 /mnt/b8311c72-fe75-3832-98fc-975445028a12/5c713376-c418-478c-8a31-89c4181cb48e.qcow2 {quote} With the result that the output file isn't a qcow2 file but a raw partition, which in turn make the next step fail. (NFS -> CLVM) {quote} DEBUG [utils.script.Script] (agentRequest-Handler-2:) Executing: qemu-img info /mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2 DEBUG [utils.script.Script] (agentRequest-Handler-2:) Execution is successful. DEBUG [utils.script.Script] (agentRequest-Handler-2:) Executing: qemu-img convert -f qcow2 -O raw /mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2 /dev/FCSTORAGE/da162325-467b-4e78-af07-4bad85470d66 DEBUG [utils.script.Script] (agentRequest-Handler-2:) Exit value is 1 DEBUG [utils.script.Script] (agentRequest-Handler-2:) qemu-img: Could not open '/mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2'qemu-img: Could not open '/mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2' ERROR [kvm.storage.LibvirtStorageAdaptor] (agentRequest-Handler-2:) Failed to convert /mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2 to /dev/FCSTORAGE/da162325-467b-4e78-af07-4bad85470d66 the error was: qemu-img: Could not open '/mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2'qemu-img: Could not open '/mnt/b8311c72-fe75-3832-98fc-975445028a12/b9303d8d-cd51-4b6c-a244-43c405df4238.qcow2' {quote} If I change on the database the format of the volume to RAW the effect is even worse as data is lost in the process! These are the parameter for the first step (CLVM => NFS) {quote} "srcTO":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"cda46430-52d7-4bf0-b0c2-adfc78dd011c","volumeType":"ROOT","dataStore":{"org.apache.cloudstack.storage.to.PrimaryDataStoreTO":{"uuid":"655d6965-b3f3-4118-a970d50cf6afc365","id":211,"poolType":"CLVM","host":"localhost","path":"/FC10KY1","port":0,"name":"ROOT-4450" ,"size":5368709120,"path":"39a25daf-23a1-4b65-99ac-fb98469ac197","volumeId":5937,"vmName":"i-4024450VM","accountId":402,"format":"RAW","id":5937,"hypervisorType":"KVM" "destTO":{"org.apache.cloudstack.storage.to.VolumeObjectTO":"uuid":"cda46430-52d7-4bf0-b0c2-adfc78dd011c","volumeType":"ROOT","dataStore":{"com.cloud.agent.api.to.NfsTO": "_url":"nfs://192.168.11.6/home/a1iwstack","_role":"Image"}},"name":"ROOT4450","size":5368709120,"path":"volumes/402/5937","volumeId":5937,"vmName":"i-402-4450-VM","accountId":402,"format":"RAW","id":5937,"hypervisorType":"KVM"} {quote} this time the output is converted to qcow2! {quote} DEBUG [utils.script.Script] (agentRequest-Handler-3:null) Executing: qemu-img info /dev/FC10KY1/39a25daf-23a1-4b65-99ac-fb98469ac197 DEBUG [utils.script.Script] (agentRequest-Handler-3:null) Execution is successful. DEBUG [utils.script.Script] (agentRequest-Handler-3:null) Executing: qemu-img convert -f raw -O qcow2 /dev/FC10KY1/39a25daf-23a1-4b65-99ac-fb98469ac197 /mnt/b8311c72-fe75-3832-98fc-975445028a12/01ab129f-aaf6-4b1a-8e2a-093bee0b811c.raw {quote} and data is lost in the next step (NFS -> CLVM): {quote} "srcTO":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"cda46430-52d7-4bf0-b0c2-adfc78dd011c","volumeType":"ROOT","dataStore":{"com.cl oud.agent.api.to.NfsTO":{"_url":"nfs://192.168.11.6/home/a1iwstack","_role":"Image"}},"name":"ROOT4450","size":5368709120,"path":"volumes/402/5937/01ab129f-aaf6-4b1a-8e2a-093bee0b811c.raw","volumeId":5937,"vmName":"i-402-4450-VM","accountId":402,"format":"RAW","id":5937,"hypervisorType":"KVM" "destTO":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"2d684689-efbc-4ce3-95ad-b38e80a1afcf","volumeType":"ROOT","dataStore":{"org.apache.cloudstack.storage.to.PrimaryDataStoreTO":{"uuid":"4d59fde3-4c93-4aa5-8041-fab797b90899","id":214,"poolType": "CLVM","host":"localhost","path":"/STOREY1","port":0}},"name":"ROOT-4450","size":5368709120,"path":"39a25daf-23a1-4b65-99ac-fb98469ac197","volumeId":5967,"vmName":"i-402-4450-VM","accountId":402,"format":"RAW","id":5967,"hypervisorType":"KVM" DEBUG [utils.script.Script] (agentRequest-Handler-4:null) Executing: qemu-img info /mnt/b8311c72-fe75-3832-98fc-975445028a12/01ab129f-aaf6-4b1a-8e2a-093bee0b811c.raw DEBUG [utils.script.Script] (agentRequest-Handler-4:null) Execution is successful. DEBUG [utils.script.Script] (agentRequest-Handler-4:null) Executing: /bin/bash -c cp -f /mnt/b8311c72-fe75-3832-98fc-975445028a12/01ab129f-aaf6-4b1a-8e2a-093bee0b811c.raw /dev/STOREY1/1e1ae58c-ca3f-4d4a-b0fd-92d18d07fb7c {quote} Since the original format was actually QCOW2 (from the previous step) this lead to data loss once the volume is expunged from the previous pool and from the nfs storage! Migration worked before we migrated to 4.2.1. -- This message was sent by Atlassian JIRA (v6.2#6252)