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https://issues.apache.org/jira/browse/CLOUDSTACK-4136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733315#comment-13733315
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ASF subversion and git services commented on CLOUDSTACK-4136:
-------------------------------------------------------------
Commit 12ba37c8aff6f256694108bf682d83756adb9d2e in branch refs/heads/master
from [~koushikd]
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=12ba37c ]
CLOUDSTACK-4136: [upgraded ENV]Deleting Snapshot which was created before
upgrade is throwing NPE.
Snapshot object is being accessed even when it is null. In case snapshot is not
present in backup store the code should return after cleaning db entry.
Also noticed discrepancy in the upgraded db setup but couldn't fully verify it,
so added logging in the upgrade logic for template/snapshots etc.
> [upgraded ENV]Deleting Snapshot which was created before upgrade is throwing
> NPE.
> ---------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-4136
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4136
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Storage Controller, Upgrade
> Affects Versions: 4.2.0
> Environment: upgraded from 3.0.7 to 4.2
> Reporter: manasaveloori
> Assignee: Koushik Das
> Priority: Critical
> Fix For: 4.2.0
>
> Attachments: management-server.log.2013-08-06.zip,
> management-server.zip, mysqldumpAfterUpnew.dmp, mysqldumpBeforeUp.dmp
>
>
> Steps:
> 1. Have CS with 3.0.7 build with VMware and Xen hypervisor.
> 2. Deploy a VM.
> 3. Create a snapshot of root volume.
> 4. Upgrade the build to 4.2.
> 5. Try to delete the snapshot now.
> Observing NPE while deleting the snapshot for the 1st time
> Tried to delete the same snapshot again deletes it. Verified the state of
> snapshot in DB also.
> 2013-08-07 20:29:19,535 DEBUG [cloud.api.ApiServlet] (catalina-exec-1:null)
> ===END=== 10.252.192.69 -- GET
> command=deleteSnapshot&id=acf6d258-99fa-4832-8499-a81a631627ce&response=json&sessionkey=uKcUJCauPB9Gj8yRMfQdmpPpTAE%3D&_=1375868166341
> 2013-08-07 20:29:19,539 DEBUG [cloud.async.AsyncJobManagerImpl]
> (Job-Executor-43:job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ])
> Executing org.apache.cloudstack.api.command.user.snapshot.DeleteSnapshotCmd
> for job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ]
> 2013-08-07 20:29:19,573 DEBUG [storage.snapshot.XenserverSnapshotStrategy]
> (Job-Executor-43:job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ]) Can't
> find snapshot on backup storage, delete it in db
> 2013-08-07 20:29:19,582 DEBUG [storage.snapshot.SnapshotManagerImpl]
> (Job-Executor-43:job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ]) Failed
> to delete snapshot: 1:java.lang.NullPointerException
> 2013-08-07 20:29:19,596 ERROR [cloud.async.AsyncJobManagerImpl]
> (Job-Executor-43:job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ])
> Unexpected exception while executing
> org.apache.cloudstack.api.command.user.snapshot.DeleteSnapshotCmd
> com.cloud.utils.exception.CloudRuntimeException: Failed to delete
> snapshot:java.lang.NullPointerException
> at
> com.cloud.storage.snapshot.SnapshotManagerImpl.deleteSnapshot(SnapshotManagerImpl.java:508)
> at
> com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
> at
> org.apache.cloudstack.api.command.user.snapshot.DeleteSnapshotCmd.execute(DeleteSnapshotCmd.java:96)
> at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:158)
> at
> com.cloud.async.AsyncJobManagerImpl$1.run(AsyncJobManagerImpl.java:531)
> at
> java.util.concurrent.Executors$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)
> 2013-08-07 20:29:19,600 DEBUG [cloud.async.AsyncJobManagerImpl]
> (Job-Executor-43:job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ]) Complete
> async job-215 = [ 055cd377-272a-4ee6-a9c9-5b57fbbf6536 ], jobStatus: 2,
> resultCode: 530, result: Error Code: 530 Error text: Failed to delete
> snapshot:java.lang.NullPointerException
> 2013-08-07 20:29:20,718 DEBUG [cloud.server.StatsCollector]
> (StatsCollector-2:null) VmStatsCollector is running...
> Attaching the MS logs.
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