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From "shweta agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-83) hitting exception when trying to take two consecutive snapshot on same volume
Date Wed, 12 Sep 2012 11:45:07 GMT
shweta agarwal created CLOUDSTACK-83:
----------------------------------------

             Summary: hitting exception when trying to take two consecutive snapshot on same
volume
                 Key: CLOUDSTACK-83
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-83
             Project: CloudStack
          Issue Type: Bug
          Components: Snapshot
    Affects Versions: pre-4.0.0
         Environment: Git Revision: 03df2fa9dd45c938f72cd1866044b09d1b0cc978
Git URL: https://git-wip-us.apache.org/repos/asf/incubator-cloudstack.git

            Reporter: shweta agarwal
            Priority: Blocker
             Fix For: 4.0.0


create a VM
Create a snapshot of its root volume
Once the snapshot is backedup try to take one more snapshot of same volume

Actual result:
Gets message Failed to back up snapshot on secondary storage
MS log shows :
2012-09-12 15:16:47,338 DEBUG [cloud.async.AsyncJobManagerImpl] (catalina-exec-18:null) submit
async job-129, details: AsyncJobVO {id:129, userId: 2, accountId: 2, sessionKey: null, instanceType:
Snapshot, instanceId: 20, cmd: com.cloud.api.commands.CreateSnapshotCmd, cmdOriginator: null,
cmdInfo: {"id":"20","response":"json","sessionkey":"h4CS2hXNWB/Djj6oc7EqZua14sg\u003d","ctxUserId":"2","_":"1347443206549","volumeid":"8d62449d-b03c-4f27-8c14-9f2e1f2c1cea","ctxAccountId":"2","ctxStartEventId":"446"},
cmdVersion: 0, callbackType: 0, callbackAddress: null, status: 0, processStatus: 0, resultCode:
0, result: null, initMsid: 59793358248320, completeMsid: null, lastUpdated: null, lastPolled:
null, created: null}
2012-09-12 15:16:47,339 DEBUG [cloud.async.AsyncJobManagerImpl] (Job-Executor-32:job-129)
Executing com.cloud.api.commands.CreateSnapshotCmd for job-129
2012-09-12 15:16:47,382 DEBUG [agent.transport.Request] (Job-Executor-32:job-129) Seq 2-1053884821:
Sending  { Cmd , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 100011, [{"ManageSnapshotCommand":{"_commandSwitch":"-c","_volumePath":"5728f1d8-e898-4c27-a698-c3108fafc580","_pool":{"id":200,"uuid":"6ce86454-a33f-3551-a1df-bf9cf191dded","host":"10.147.28.7","path":"/export/home/shweta/asfprimary","port":2049,"type":"NetworkFilesystem"},"_snapshotPath":"8522d3f9-353a-422e-8f4c-b9e9772c47f8","_snapshotName":"cent-snap_ROOT-16_20120912094647","_snapshotId":20,"_vmName":"i-2-16-VM","wait":0}}]
}
2012-09-12 15:16:47,383 DEBUG [agent.transport.Request] (Job-Executor-32:job-129) Seq 2-1053884821:
Executing:  { Cmd , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 100011, [{"ManageSnapshotCommand":{"_commandSwitch":"-c","_volumePath":"5728f1d8-e898-4c27-a698-c3108fafc580","_pool":{"id":200,"uuid":"6ce86454-a33f-3551-a1df-bf9cf191dded","host":"10.147.28.7","path":"/export/home/shweta/asfprimary","port":2049,"type":"NetworkFilesystem"},"_snapshotPath":"8522d3f9-353a-422e-8f4c-b9e9772c47f8","_snapshotName":"cent-snap_ROOT-16_20120912094647","_snapshotId":20,"_vmName":"i-2-16-VM","wait":0}}]
}
2012-09-12 15:16:47,383 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-284:null) Seq
2-1053884821: Executing request
2012-09-12 15:16:49,425 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-284:null) Seq
2-1053884821: Response Received:
2012-09-12 15:16:49,426 DEBUG [agent.transport.Request] (DirectAgent-284:null) Seq 2-1053884821:
Processing:  { Ans: , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 10, [{"ManageSnapshotAnswer":{"_snapshotPath":"60da197d-3de9-4eb6-8a4c-9032003c45a6","result":true,"wait":0}}]
}
2012-09-12 15:16:49,426 DEBUG [agent.transport.Request] (Job-Executor-32:job-129) Seq 2-1053884821:
Received:  { Ans: , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 10, { ManageSnapshotAnswer
} }
2012-09-12 15:16:49,469 DEBUG [agent.transport.Request] (Job-Executor-32:job-129) Seq 2-1053884822:
Sending  { Cmd , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 100011, [{"BackupSnapshotCommand":{"prevSnapshotUuid":"8522d3f9-353a-422e-8f4c-b9e9772c47f8","prevBackupUuid":"a030a6af-9663-461c-b746-8a7a814d9694","isVolumeInactive":false,"vmName":"i-2-16-VM","snapshotId":20,"pool":{"id":200,"uuid":"6ce86454-a33f-3551-a1df-bf9cf191dded","host":"10.147.28.7","path":"/export/home/shweta/asfprimary","port":2049,"type":"NetworkFilesystem"},"primaryStoragePoolNameLabel":"6ce86454-a33f-3551-a1df-bf9cf191dded","snapshotUuid":"60da197d-3de9-4eb6-8a4c-9032003c45a6","snapshotName":"cent-snap_ROOT-16_20120912094647","secondaryStorageUrl":"nfs://10.147.28.7/export/home/shweta/asfsecondary","dcId":1,"accountId":2,"volumeId":26,"volumePath":"5728f1d8-e898-4c27-a698-c3108fafc580","wait":21600}}]
}
2012-09-12 15:16:49,470 DEBUG [agent.transport.Request] (Job-Executor-32:job-129) Seq 2-1053884822:
Executing:  { Cmd , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 100011, [{"BackupSnapshotCommand":{"prevSnapshotUuid":"8522d3f9-353a-422e-8f4c-b9e9772c47f8","prevBackupUuid":"a030a6af-9663-461c-b746-8a7a814d9694","isVolumeInactive":false,"vmName":"i-2-16-VM","snapshotId":20,"pool":{"id":200,"uuid":"6ce86454-a33f-3551-a1df-bf9cf191dded","host":"10.147.28.7","path":"/export/home/shweta/asfprimary","port":2049,"type":"NetworkFilesystem"},"primaryStoragePoolNameLabel":"6ce86454-a33f-3551-a1df-bf9cf191dded","snapshotUuid":"60da197d-3de9-4eb6-8a4c-9032003c45a6","snapshotName":"cent-snap_ROOT-16_20120912094647","secondaryStorageUrl":"nfs://10.147.28.7/export/home/shweta/asfsecondary","dcId":1,"accountId":2,"volumeId":26,"volumePath":"5728f1d8-e898-4c27-a698-c3108fafc580","wait":21600}}]
}
2012-09-12 15:16:49,470 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-79:null) Seq
2-1053884822: Executing request
2012-09-12 15:16:50,893 DEBUG [cloud.server.StatsCollector] (StatsCollector-3:null) VmStatsCollector
is running...
2012-09-12 15:16:50,912 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-211:null) Seq
2-1053884823: Executing request
2012-09-12 15:16:51,130 DEBUG [xen.resource.CitrixResourceBase] (DirectAgent-211:null) Vm
cpu utilization 0.16
2012-09-12 15:16:51,130 DEBUG [xen.resource.CitrixResourceBase] (DirectAgent-211:null) Vm
cpu utilization 0.83
2012-09-12 15:16:51,130 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-211:null) Seq
2-1053884823: Response Received:
2012-09-12 15:16:51,130 DEBUG [agent.transport.Request] (StatsCollector-3:null) Seq 2-1053884823:
Received:  { Ans: , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 10, { GetVmStatsAnswer
} }
2012-09-12 15:16:53,079 WARN  [xen.resource.CitrixResourceBase] (DirectAgent-79:null) Task
failed! Task record:                 uuid: ef4ca152-46a8-cba7-9c45-e1f0038cf51a
           nameLabel: Async.host.call_plugin
     nameDescription:
   allowedOperations: []
   currentOperations: {}
             created: Wed Sep 12 15:16:50 IST 2012
            finished: Wed Sep 12 15:16:52 IST 2012
              status: FAILURE
          residentOn: com.xensource.xenapi.Host@63abd2e5
            progress: 1.0
                type: <none/>
              result:
           errorInfo: [XENAPI_PLUGIN_FAILURE, backupSnapshot, SROSError, Error reporting error,
unknown key Unexpected error while trying to set parent of /var/run/cloud_mount/1/snapshots/2/26/ca5d6199-1541-4443-b48f-de88f5ca8a15.vhd
to /var/run/cloud_mount/1/snapshots/2/26/a030a6af-9663-461c-b746-8a7a814d9694.vhd]
         otherConfig: {}
           subtaskOf: com.xensource.xenapi.Task@aaf13f6f
            subtasks: []

2012-09-12 15:16:53,088 WARN  [xen.resource.CitrixResourceBase] (DirectAgent-79:null) callHostPlugin
failed for cmd: backupSnapshot with args dcId: 1, secondaryStorageMountPath: 10.147.28.7:/export/home/shweta/asfsecondary,
accountId: 2, volumeId: 26, backupUuid: ca5d6199-1541-4443-b48f-de88f5ca8a15, prevBackupUuid:
a030a6af-9663-461c-b746-8a7a814d9694, snapshotUuid: 60da197d-3de9-4eb6-8a4c-9032003c45a6,
isISCSI: false, primaryStorageSRUuid: f7ab128c-9c49-cce6-1a5b-c53feccba16f,  due to Task failed!
Task record:                 uuid: ef4ca152-46a8-cba7-9c45-e1f0038cf51a
           nameLabel: Async.host.call_plugin
     nameDescription:
   allowedOperations: []
   currentOperations: {}
             created: Wed Sep 12 15:16:50 IST 2012
            finished: Wed Sep 12 15:16:52 IST 2012
              status: FAILURE
          residentOn: com.xensource.xenapi.Host@63abd2e5
            progress: 1.0
                type: <none/>
              result:
           errorInfo: [XENAPI_PLUGIN_FAILURE, backupSnapshot, SROSError, Error reporting error,
unknown key Unexpected error while trying to set parent of /var/run/cloud_mount/1/snapshots/2/26/ca5d6199-1541-4443-b48f-de88f5ca8a15.vhd
to /var/run/cloud_mount/1/snapshots/2/26/a030a6af-9663-461c-b746-8a7a814d9694.vhd]
         otherConfig: {}
           subtaskOf: com.xensource.xenapi.Task@aaf13f6f
            subtasks: []

Task failed! Task record:                 uuid: ef4ca152-46a8-cba7-9c45-e1f0038cf51a
 nameLabel: Async.host.call_plugin
     nameDescription:
   allowedOperations: []
   currentOperations: {}
             created: Wed Sep 12 15:16:50 IST 2012
            finished: Wed Sep 12 15:16:52 IST 2012
              status: FAILURE
          residentOn: com.xensource.xenapi.Host@63abd2e5
            progress: 1.0
                type: <none/>
              result:
           errorInfo: [XENAPI_PLUGIN_FAILURE, backupSnapshot, SROSError, Error reporting error,
unknown key Unexpected error while trying to set parent of /var/run/cloud_mount/1/snapshots/2/26/ca5d6199-1541-4443-b48f-de88f5ca8a15.vhd
to /var/run/cloud_mount/1/snapshots/2/26/a030a6af-9663-461c-b746-8a7a814d9694.vhd]
         otherConfig: {}
           subtaskOf: com.xensource.xenapi.Task@aaf13f6f
            subtasks: []

        at com.cloud.hypervisor.xen.resource.CitrixResourceBase.checkForSuccess(CitrixResourceBase.java:3146)
        at com.cloud.hypervisor.xen.resource.CitrixResourceBase.callHostPluginAsync(CitrixResourceBase.java:3459)
        at com.cloud.hypervisor.xen.resource.CitrixResourceBase.backupSnapshot(CitrixResourceBase.java:3410)
        at com.cloud.hypervisor.xen.resource.CitrixResourceBase.execute(CitrixResourceBase.java:6532)
        at com.cloud.hypervisor.xen.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:469)
        at com.cloud.hypervisor.xen.resource.XenServer56Resource.executeRequest(XenServer56Resource.java:73)
        at com.cloud.agent.manager.DirectAgentAttache$Task.run(DirectAgentAttache.java:191)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:165)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:679)
2012-09-12 15:16:54,137 WARN  [xen.resource.CitrixResourceBase] (DirectAgent-79:null) Could
not copy backupUuid: null of volumeId: 26 from primary storage f7ab128c-9c49-cce6-1a5b-c53feccba16f
to secondary storage 10.147.28.7:/export/home/shweta/asfsecondary due to null
2012-09-12 15:16:54,149 DEBUG [xen.resource.CitrixResourceBase] (DirectAgent-79:null) Successfully
destroyed snapshot on volume: 5728f1d8-e898-4c27-a698-c3108fafc580 execept this current snapshot
60da197d-3de9-4eb6-8a4c-9032003c45a6
2012-09-12 15:16:54,149 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-79:null) Seq
2-1053884822: Response Received:
2012-09-12 15:16:54,150 DEBUG [agent.transport.Request] (DirectAgent-79:null) Seq 2-1053884822:
Processing:  { Ans: , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 10, [{"BackupSnapshotAnswer":{"full":false,"result":false,"wait":0}}]
}
2012-09-12 15:16:54,150 DEBUG [agent.transport.Request] (Job-Executor-32:job-129) Seq 2-1053884822:
Received:  { Ans: , MgmtId: 59793358248320, via: 2, Ver: v1, Flags: 10, { BackupSnapshotAnswer
} }
@             
2012-09-12 15:18:54,153 WARN  [storage.snapshot.SnapshotManagerImpl] (Job-Executor-32:job-129)
Storage unavailable
com.cloud.exception.StorageUnavailableException: Resource [StoragePool:200] is unreachable:
Unable to send command to the pool 200 due to there is no enabled hosts up in this cluster
        at com.cloud.storage.StorageManagerImpl.sendToPool(StorageManagerImpl.java:2190)
        at com.cloud.storage.StorageManagerImpl.sendToPool(StorageManagerImpl.java:2215)
        at com.cloud.storage.snapshot.SnapshotManagerImpl.sendToPool(SnapshotManagerImpl.java:256)
        at com.cloud.storage.snapshot.SnapshotManagerImpl.backupSnapshotToSecondaryStorage(SnapshotManagerImpl.java:654)
        at com.cloud.utils.db.DatabaseCallback.intercept(DatabaseCallback.java:34)
        at com.cloud.storage.snapshot.SnapshotManagerImpl.createSnapshot(SnapshotManagerImpl.java:463)
        at com.cloud.utils.component.ComponentLocator$InterceptorDispatcher.intercept(ComponentLocator.java:1231)
        at com.cloud.storage.snapshot.SnapshotManagerImpl.createSnapshot(SnapshotManagerImpl.java:130)
        at com.cloud.api.commands.CreateSnapshotCmd.execute(CreateSnapshotCmd.java:155)
        at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:138)
        at com.cloud.async.AsyncJobManagerImpl$1.run(AsyncJobManagerImpl.java:449)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:679)
2012-09-12 15:18:54,154 WARN  [storage.snapshot.SnapshotManagerImpl] (Job-Executor-32:job-129)
Failed to back up snapshot on secondary storage, deleting the record from the DB
2012-09-12 15:18:54,182 ERROR [cloud.api.ApiDispatcher] (Job-Executor-32:job-129) Exception
while executing CreateSnapshotCmd:
com.cloud.utils.exception.CloudRuntimeException: Created snapshot: com.cloud.storage.SnapshotVO$$EnhancerByCGLIB$$7b65b9ee@10fc2cb
on primary but failed to backup on secondary
        at com.cloud.storage.snapshot.SnapshotManagerImpl.createSnapshot(SnapshotManagerImpl.java:475)
        at com.cloud.utils.component.ComponentLocator$InterceptorDispatcher.intercept(ComponentLocator.java:1231)
        at com.cloud.storage.snapshot.SnapshotManagerImpl.createSnapshot(SnapshotManagerImpl.java:130)
        at com.cloud.api.commands.CreateSnapshotCmd.execute(CreateSnapshotCmd.java:155)
        at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:138)
        at com.cloud.async.AsyncJobManagerImpl$1.run(AsyncJobManagerImpl.java:449)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:679)
2012-09-12 15:18:54,183 DEBUG [cloud.async.AsyncJobManagerImpl] (Job-Executor-32:job-129)
Complete async job-129, jobStatus: 2, resultCode: 530, result: Error Code: 530 Error text:
Created snapshot: com.cloud.storage.SnapshotVO$$EnhancerByCGLIB$$7b65b9ee@10fc2cb on primary
but failed to backup on secondary
2012-09-12 15:18:57,804 DEBUG [cloud.async.AsyncJobManagerImpl] (catalina-exec-16:null) Async
job-129 completed
                                                                                         
                                                                                         
                      

Expected result:
Snapshot creation should be successful

Additional information .

I have checked on secondary storage that the   particular snapshot id exists in follwing location
which xen host complains of not finding "snapshots/2/26/a030a6af-9663-461c-b746-8a7a814d9694.vhd
   " 



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