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https://issues.apache.org/jira/browse/CLOUDSTACK-9607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15878360#comment-15878360
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ASF GitHub Bot commented on CLOUDSTACK-9607:
--------------------------------------------
Github user priyankparihar commented on the issue:
https://github.com/apache/cloudstack/pull/1773
@borisroman and @serg38 Sure.
> Preventing template deletion when template is in use.
> -----------------------------------------------------
>
> Key: CLOUDSTACK-9607
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9607
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Reporter: Priyank Parihar
> Assignee: Priyank Parihar
>
> Consider this scenario:
> 1. User launches a VM from Template and keep it running
> 2. Admin logins and deleted that template [CloudPlatform does not check
> existing / running VM etc. while the deletion is done]
> 3. User resets the VM
> 4. CloudPlatform fails to star the VM as it cannot find the corresponding
> template.
> It throws error as
> java.lang.RuntimeException: Job failed due to exception Resource [Host:11] is
> unreachable: Host 11: Unable to start instance due to can't find ready
> template: 209 for data center 1
> at
> com.cloud.vm.VmWorkJobDispatcher.runJob(VmWorkJobDispatcher.java:113)
> at
> org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:495)
> Client is requesting better handing of this scenario. We need to check
> existing / running VM's when the template is deleted and warn admin about the
> possible issue that may occur.
> REPRO STEPS
> ==================
> 1. Launches a VM from Template and keep it running
> 2. Now delete that template
> 3. Reset the VM
> 4. CloudPlatform fails to star the VM as it cannot find the corresponding
> template.
> EXPECTED BEHAVIOR
> ==================
> Cloud platform should throw some warning message while the template is
> deleted if that template is being used by existing / running VM's
> ACTUAL BEHAVIOR
> ==================
> Cloud platform does not throw as waring etc.
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