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https://issues.apache.org/jira/browse/CLOUDSTACK-6472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13977939#comment-13977939
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Pierre-Yves Ritschard commented on CLOUDSTACK-6472:
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Ce patch is up on review board: https://reviews.apache.org/r/20557/
> GenerateUsageRecords generates NPEs for expunging instances
> -----------------------------------------------------------
>
> Key: CLOUDSTACK-6472
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6472
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server, Usage
> Affects Versions: 4.3.0
> Environment: linux
> Reporter: Pierre-Yves Ritschard
> Attachments: 0001-handle-removed-entities.patch
>
>
> The GenerateUsageRecords 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.
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