Jan Provaznik created DTACLOUD-224:
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Summary: Error abstraction/categorization
Key: DTACLOUD-224
URL: https://issues.apache.org/jira/browse/DTACLOUD-224
Project: DeltaCloud
Issue Type: Improvement
Reporter: Jan Provaznik
It would be nice to get categorized errors from Deltacloud if something goes
wrong instead of just forwarding a provider specific error directly to client.
For example if an instance create failed because something was wrong with hw
profile, Deltacloud would return HWProfileError exception. The original
provider specific exception would be included in some description.
For the beginning most errors would be in some some generic class, only most
common errors would be categorized, especially these which are related to
params passed in API calls, for instance creation it would be errors related to
image id, realms, hwp...
Use case for Aeolus is this: if instance create action fails for some reason,
we need to decide if the instance should be launched on same provider with
different configuration (different realm/hwp...) or if it's better to try
launch the instance on another provider account or even provider.
Deltacloud is the best place where the error abstraction should be done because:
- Deltacloud is the abstraction layer which should abstract provider-specific
behavior
- each Deltacloud client would have to implement it's own error abstraction
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