[jira] [Resolved] (CLOUDSTACK-3591) No usage recording for VM snapshots

["Mice Xia (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-3591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mice Xia resolved CLOUDSTACK-3591.
----------------------------------

    Resolution: Fixed

[change]
1) add a column `vm_snapshot_chain_size` to `volumes` to save chain size for a volume with snapshot, this enables VM snapshot capacity calculation.
2) get volumes' chain size in resource layer after VMsnapshotCreate/Delete and report the stats to mgmt server in answers
3) publish usage events for vm snapshot after VMsnapshotCreate/Delete
4) generate usage records for vm snapshot, on a volume basis.
                
> No usage recording for VM snapshots
> -----------------------------------
>
>                 Key: CLOUDSTACK-3591
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3591
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Usage
>    Affects Versions: 4.2.0
>         Environment: build:
> CloudPlatform-4.2-216-rhel6.3
>            Reporter: shweta agarwal
>            Assignee: Amogh Vasekar
>            Priority: Critical
>             Fix For: 4.2.0
>
>
> Repro steps;
> Create a VM
> Create VM  snapshot
> Bug:
> Notice no usage events is recorded for VM  snapshot  created in step 2
> Expected result:
> We should have usage events for VM  snapshots creation and deletion

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