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https://issues.apache.org/jira/browse/DTACLOUD-423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559925#comment-13559925
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Christian Karnath commented on DTACLOUD-423:
--------------------------------------------
After investigating this issue in detail I found out that the ‘realms’ method
of the eucalyptus driver is inherited by the ec2 driver. Moreover this method
of the ec2 driver was recently extended to support ‘Availability Zones’ and
‘Subnets’ (EC2: list subnets as realms):
https://github.com/apache/deltacloud/commit/ef3de3187959f7f2746ae81d17a79ded11a892a6
The problem is that ‘Subnets’ are not supported by eucalyptus and thus the
operation ‘ec2.describe_subnets’ inside the inherited ‘realms’ method throws an
exception.
> Requesting /api/realms against the eucalyptus driver fails
> ----------------------------------------------------------
>
> Key: DTACLOUD-423
> URL: https://issues.apache.org/jira/browse/DTACLOUD-423
> Project: DeltaCloud
> Issue Type: Bug
> Components: Server
> Reporter: Christian Karnath
>
> Requesting /api/realms against the eucalyptus driver fails in the current
> development version. With deltacloud 1.0.2 everything is still fine.
> <?xml version='1.0' encoding='utf-8' ?>
> <error status='500' url='/api/realms'>
> <kind>backend_error</kind>
> <backend driver='eucalyptus' provider='ec2=x.x.x.x:8773'>
> <code>500</code>
> </backend>
> <message><![CDATA[Internal Server Error]]></message>
> <request>
> <param name='format'>xml</param>
> </request>
> </error>
> D, [2013-01-16T17:37:29.068507 #26548] DEBUG -- : New Aws::Ec2 using
> per_thread-connection mode
> D, [2013-01-16T17:37:29.069477 #26548] DEBUG -- : Opening new HTTP connection
> to x.x.x.x:8773
> W, [2013-01-16T17:37:29.496355 #26548] WARN -- : ##### Aws::Ec2 returned an
> error: 412 Precondition Failed
> <?xml version="1.0"?><Response><Errors><Error><Code>412 Precondition
> Failed</Code><Message>Default binding failed to build a valid message:
> Missing required object</Message></Error></Errors><RequestID>Default binding
> failed to build a valid message: Missing required
> object</RequestID></Response> #####
> W, [2013-01-16T17:37:29.496487 #26548] WARN -- : ##### Aws::Ec2 request:
> ..... ####
> E, [2013-01-16T17:37:29.503619 #26548] ERROR -- 500:
> [Deltacloud::Exceptions::BackendError] Internal Server Error
> 127.0.0.1 - - [16/Jan/2013 17:37:29] "GET /api/realms?format=xml HTTP/1.1"
> 500 336 0.4448
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