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https://issues.apache.org/jira/browse/CLOUDSTACK-9771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15941511#comment-15941511
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Patrick commented on CLOUDSTACK-9771:
-------------------------------------
Upgraded from 4.5.2 to 4.9.2.0, CentOS, encountered the same issue.
Adding the parameters manually did also fix it.
> usage DB: ERROR c.c.u.d.DriverLoader DB driver type null is not supported
> --------------------------------------------------------------------------
>
> Key: CLOUDSTACK-9771
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9771
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Install and Setup
> Affects Versions: 4.9.2.0
> Reporter: Martin Emrich
>
> After upgrading from 4.7.x to 4.9.2.0, the management server apparently did
> not add the line
> {code}
> db.usage.driver=jdbc:mysql
> {code}
> to {{db.properties}}. Thus upon startup, the server reports the error message
> "DriverLoader DB driver type null is not supported", and does not start fully
> (migration tasks do not start, and the GUI cannot connect).
> The server process has to be terminated hard via SIGKILL.
> After adding the line manually, the server starts fine.
> This is not the same as CLOUDSTACK-9444, the edit for the other two DBs
> (cloud and simulator) went fine.
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