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https://issues.apache.org/jira/browse/CLOUDSTACK-5370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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edison su resolved CLOUDSTACK-5370.
-----------------------------------
Resolution: Fixed
when error happened during snapshot, we need to delete the snapshot on primary
storage and also in db.
> Xenserver - Snapshots - vhd entries get accumulated on the primary store when
> snapshot creation fails becasue of not being able to reach the secondary
> store.
> -------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-5370
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-5370
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.3.0
> Environment: Build from 4.3
> Reporter: Sangeetha Hariharan
> Assignee: edison su
> Priority: Critical
> Fix For: 4.3.0
>
>
> Set up:
> Advanced Zone with 2 Xenserver 6.2 hosts:
> 1. Deploy 5 Vms in each of the hosts with 10 GB ROOT volume size , so we
> start with 10 Vms.
> 2. Start concurrent snapshots for ROOT volumes of all the Vms.
> 3. Shutdown the Secondary storage server when the snapshots are in the
> progress. ( In my case i stopped the nfs server)
> 4. Bring the Secondary storage server up after 12 hours. ( In my case started
> the nfs server).
> When secondary server was down (NFS server down) for about 12 hours , I see
> that hourly snapshots get attempted every hour and fail with
> “CreatedOnPrimary" state . I see many entries being created on the primary
> store ( I see 120 entries , but I have only 14 vms).
> We accumulate 2 vhd files on the primary store for every snapshot that is
> attempted.
> When secondary store is brought up , and when another snapshot is attempted
> and it succeeds, we see the vhd files are all being cleared out.
> This is a problem that we accumulate so many vhd files ( In case of vmware
> and kvm where there are no delta snapshots this size would be significantly
> higher) on primary store.
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