openstack team mailing list archive

[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

On Jan 31, 2013, at 6:37 PM, "Ali, Haneef" <haneef.ali@xxxxxx> wrote:

> Isn’t  signed token an optional feature?  If so validateToken is going to be a high frequency call.  Also  “Service Catalog” is a constant, the services can  cache it.  It doesn’t need to be part of validateToken.

Service catalog is not a constant. That said the only time it is used is when a service needs to proxy a call to another service using the same token. If we had a reasonable way to make requests on behalf of other users we don't really need it as the service could just keep its own catalog and make requests on behalf of the requesting user.

Vish

>  
> Thanks
> Haneef
>  
> From: openstack-bounces+haneef.ali=hp.com@xxxxxxxxxxxxxxxxxxx [mailto:openstack-bounces+haneef.ali=hp.com@xxxxxxxxxxxxxxxxxxx] On Behalf Of Adam Young
> Sent: Thursday, January 31, 2013 6:25 PM
> To: openstack@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Openstack] [keystone] Why are we returing such a big payload in validate token?
>  
> On 01/31/2013 07:44 PM, Ali, Haneef wrote:
> Hi,
>  
> As of now  v3  validateToken response has “tokens, service catalog, users, project , roles and  domains.  (i.e)  Except for groups we are returning everything.  We also discussed about the possibility of 100s of endpoints.  ValidateToken is supposed to be a high frequency call .    This is
> 
> Validate token should not going  be a high frequency call.  The information is encapsulated inside the signed token for just that reason.
> 
> I would agree with the sentiment, however, that we are cramming a lot of info into the token.  TOkens should be scoped much, much more finely: by default one service or endpoint, and one tenant.
> 
> The only thing that should require the full service catalog is the initial request of an unsigned token, and that should merely go back to the client.
> 
> 
> going to be a huge performance impact . What is the use case  for such a big payload  when compared with v2? 
>  
> If a service needs catalog , then the service can always ask for the catalog.
>  
> Thanks
> Haneef
> 
> 
> 
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