[CLOUDSTACK-6945] Null pointer exception when starting a VM that had its template deleted

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 4.3.0
• Fix Version/s: 4.5.0, 4.4.3, 4.3.2
• Component/s: Management Server
• Security Level: Public (Anyone can view this level - this is the default.)
• Environment: Hosts are Debian 7.4.0 with Xen hypervisor e Xen Cloud Platform packages installed and properly configured.
• Assignee: Rohit Yadav
• Reporter: Rafael Weingärtner
• Created: 19/Jun/14 15:12
• Updated: 01/Dec/14 17:25
• Resolved: 01/Dec/14 17:25

Description

It seems that you have a bug in CS 4.3.0(and probably previous versions?) when starting a machine that was created from a template that has been deleted.

There will happen a null pointer exception in "com.cloud.vm.VirtualMachineManagerImpl.orchestrateStart":
“858 - if (volTemplateId != null && volTemplateId.longValue() != template.getId())”

The object, “template” is going to be null, because in:

“811 - VirtualMachineTemplate template = _entityMgr.findById(VirtualMachineTemplate.class, vm.getTemplateId());”

The findById, will add a where clause, looking for template that have the column removed that is null, therefore It will return a null object.

Issue Links

• is duplicated by: CLOUDSTACK-7404 Failed to start an instance when originating template has been deleted