vladimirpetrov opened a new issue, #6419:
URL: https://github.com/apache/cloudstack/issues/6419
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##### ISSUE TYPE
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* Bug Report
##### COMPONENT NAME
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API
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##### CLOUDSTACK VERSION
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branch.
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4.17 RC3
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##### CONFIGURATION
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advanced networking, etc. N/A otherwise
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N/A
##### OS / ENVIRONMENT
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KVM hypervisor
##### SUMMARY
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Create snapshot from VM snapshot is not working for KVM hypervisor.
##### STEPS TO REPRODUCE
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test-case. Use Screenshots if accurate.
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Go to VM snapshots and try to create a snapshot from a VM snapshot.
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##### EXPECTED RESULTS
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If the global variable **kvm.snapshot.enabled** is set to false and the VM
is running, there must be a warning message. If the VM is stopped, a snapshot
must be created successfully.
~~~
##### ACTUAL RESULTS
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Regardless of the VM state, the operation fails with the following errors:
-----
Failed to create Snapshot from VM Snapshot.
Failed to create snapshot due to an internal error creating snapshot from vm
snapshot 1
022-05-27 13:29:11,427 DEBUG [o.a.c.s.s.SnapshotServiceImpl]
(API-Job-Executor-42:ctx-ac02cb67 job-62 ctx-69a00fc8) (logid:8fd7fd84) Failed
to copy snapshot
java.lang.RuntimeException: InvocationTargetException when invoking RPC
callback for command: copySnapshotAsyncCallback
at
org.apache.cloudstack.framework.async.AsyncCallbackDispatcher.dispatch(AsyncCallbackDispatcher.java:154)
at
org.apache.cloudstack.framework.async.InplaceAsyncCallbackDriver.performCompletionCallback(InplaceAsyncCallbackDriver.java:25)
at
org.apache.cloudstack.framework.async.AsyncCallbackDispatcher.complete(AsyncCallbackDispatcher.java:126)
at
org.apache.cloudstack.storage.motion.AncientDataMotionStrategy.copyAsync(AncientDataMotionStrategy.java:534)
at
org.apache.cloudstack.storage.motion.DataMotionServiceImpl.copyAsync(DataMotionServiceImpl.java:84)
at
org.apache.cloudstack.storage.motion.DataMotionServiceImpl.copyAsync(DataMotionServiceImpl.java:106)
at
org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl.backupSnapshot(SnapshotServiceImpl.java:280)
at
org.apache.cloudstack.storage.snapshot.DefaultSnapshotStrategy.backupSnapshot(DefaultSnapshotStrategy.java:177)
at
com.cloud.storage.snapshot.SnapshotManagerImpl.backupSnapshotFromVmSnapshot(SnapshotManagerImpl.java:498)
...
2022-05-27 13:29:11,433 DEBUG [c.c.s.s.SnapshotManagerImpl]
(API-Job-Executor-42:ctx-ac02cb67 job-62 ctx-69a00fc8) (logid:8fd7fd84) Failed
to backup snapshot from vm snapshot
com.cloud.utils.exception.CloudRuntimeException: Failed to copy
snapshot:java.lang.RuntimeException: InvocationTargetException when invoking
RPC callback for command: copySnapshotAsyncCallback
at
org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl.backupSnapshot(SnapshotServiceImpl.java:301)
...
2022-05-27 13:29:11,440 DEBUG
[o.a.c.a.c.u.s.CreateSnapshotFromVMSnapshotCmd]
(API-Job-Executor-42:ctx-ac02cb67 job-62 ctx-69a00fc8) (logid:8fd7fd84) Failed
to create snapshot
com.cloud.utils.exception.CloudRuntimeException: Failed to backup snapshot
from vm snapshot
------
Further analysis shows that the failure actually comes from the host:
2022-05-30 11:41:49,506 DEBUG [c.c.a.t.Request]
(AgentManager-Handler-6:null) (logid:) Seq 2-491455309336806422: Processing: {
Ans: , MgmtId: 32989492806219, via: 2, Ver: v1, Flags: 10,
[{"org.apache.cloudstack.storage.command.CopyCmdAnswer":{"result":"false","details":"***Failed
to backup snapshot i-2-5-VM_VS_20220530114135, undefined type
i-2-5-VM_VS_20220530114135","wait":"0","bypassHostMaintenance":"false"}}]
***Failed to backup snapshot i-2-5-VM_VS_20220530114135, undefined type
i-2-5-VM_VS_20220530114135
and the reason seems to be the **managesnapshot.sh** script:
2022-05-30 11:55:19,152 DEBUG [kvm.storage.KVMStorageProcessor]
(agentRequest-Handler-2:null) (logid:565d35b1) Executing:
/usr/share/cloudstack-common/scripts/storage/qcow2/managesnapshot.sh -b
i-2-5-VM_VS_20220530114135 -n i-2-5-VM_VS_20220530114135 -p
/mnt/3ac1f06a-3f50-3e03-b53e-92faead36a85/snapshots/2/5 -t
248e458e-f2c5-48c3-86bc-5201104a5832
2022-05-30 11:55:19,155 DEBUG [kvm.storage.KVMStorageProcessor]
(agentRequest-Handler-2:null) (logid:565d35b1) Executing while with timeout :
21600000
2022-05-30 11:55:19,167 DEBUG [kvm.storage.KVMStorageProcessor]
(agentRequest-Handler-2:null) (logid:565d35b1) Exit value is 3
2022-05-30 11:55:19,168 DEBUG [kvm.storage.KVMStorageProcessor]
(agentRequest-Handler-2:null) (logid:565d35b1) ***Failed to backup snapshot
i-2-5-VM_VS_20220530114135, undefined type i-2-5-VM_VS_20220530114135
2022-05-30 11:55:19,168 DEBUG [kvm.storage.KVMStorageProcessor]
(agentRequest-Handler-2:null) (logid:565d35b1) Failed to backup snaptshot:
***Failed to backup snapshot i-2-5-VM_VS_20220530114135, undefined type
i-2-5-VM_VS_20220530114135
~~~
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