[CLOUDSTACK-6472] listUsageRecords generates NPEs for expunging instances

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.3.0
• Fix Version/s: 4.4.0, 4.3.1
• Component/s: Management Server, Usage
• Security Level: Public (Anyone can view this level - this is the default.)
• Environment: linux
• Assignee: Unassigned
• Reporter: Pierre-Yves Ritschard
• Created: 22/Apr/14 12:53
• Updated: 10/Jun/14 10:27
• Resolved: 06/May/14 13:19

Description

The listUsageRecords API command, pulls down the list of usage records in the cloud_usage database and augments records with information pulled from the cloud database.

When dealing with instance records, only instances which are do not have a value for the removed field are considered. Unfortunately, since the output of _entityMgr.findById is not checked this means that Null Pointer Exceptions are generated when trying to access the output for expunged VMs.

The attached patch fixes the issue and applies a similar fix for other similar cases.

Issue Links

• duplicates: CLOUDSTACK-6651 Include resource UUId in usage events