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https://issues.apache.org/jira/browse/CLOUDSTACK-9738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Vazquez updated CLOUDSTACK-9738:
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Description:
h2. Description
It was noticed that expunging instances with many vm snapshots took a look of
time, as hypervisor received as many tasks as vm snapshots instance had, apart
from the delete vm task. We propose a way to optimize this process for
instances with vm snapshots by sending only one delete task to hypervisor,
which will delete vm and its snapshots
h2. Use cases
- deleteVMsnapohsot-> no changes to current behavior
- destroyVM with expunge=false -> no actions to VMsnaphsot is performed at the
moment. When VM cleanup thread is executed it will perform the same sequence as
#3. If instance is recovered before expunged by the cleanup thread it will
remain intact with VMSnapshot chain present
3. If deleteVM is called with expunge=true , then
a. Vmsnaphsot is marked with removed timestamp and state = Expunging in
DB
b. VM is deleted in HW
> Optimize vm expunge process for instances with vm snapshots
> -----------------------------------------------------------
>
> Key: CLOUDSTACK-9738
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9738
> Project: CloudStack
> Issue Type: Improvement
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Affects Versions: 4.10.0.0
> Reporter: Nicolas Vazquez
> Assignee: Nicolas Vazquez
> Fix For: 4.10.0.0
>
>
> h2. Description
> It was noticed that expunging instances with many vm snapshots took a look of
> time, as hypervisor received as many tasks as vm snapshots instance had,
> apart from the delete vm task. We propose a way to optimize this process for
> instances with vm snapshots by sending only one delete task to hypervisor,
> which will delete vm and its snapshots
> h2. Use cases
> - deleteVMsnapohsot-> no changes to current behavior
> - destroyVM with expunge=false -> no actions to VMsnaphsot is performed at
> the moment. When VM cleanup thread is executed it will perform the same
> sequence as #3. If instance is recovered before expunged by the cleanup
> thread it will remain intact with VMSnapshot chain present
> 3. If deleteVM is called with expunge=true , then
> a. Vmsnaphsot is marked with removed timestamp and state = Expunging
> in DB
> b. VM is deleted in HW
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