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From "Priyank Parihar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-9607) Preventing template deletion when template is in use.
Date Wed, 23 Nov 2016 08:59:58 GMT
Priyank Parihar created CLOUDSTACK-9607:
-------------------------------------------

             Summary: 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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