[Go-essp-tech] Data node authorization

Rick Brownrigg brownrig at ucar.edu
Fri Jul 1 15:14:54 MDT 2011


On Jul 1, 2011, at 1:35 PM, Gavin M. Bell wrote:

> 
> If you look at more recent node installations (version 0.5.1+) you will see that there is a registration.xml document that is served under esgf-node-manager.  It is an active document that is     automatically updated by the node manager's registry service to always reflect the current state of the federation.


Can someone point out a site running the newer software?  I would like to take a look at a real  
instance of a registration.xml doc.

Thanks
Rick




> This is a feature of the new ESGF Node.  Gateways are not running node managers so they are not present in the registration.xml document.  However, you can find out about gateways indirectly by looking at the ESGF Node's registration entry and looking at the attribute "adminPeer" this indicates that node's target IDP service, which in older ESG parlance indicates a "gateway".  The new ESGF Nodes are built based on a modular component architecture such that sets of components embody functionality, these are what we call ESGF Node "types".  There are 4 node types. The node type that is currently being installed is the well known "data" type a.k.a the "data node", the other types are not mutually exclusive and extend the ESGF Nodes functionality to include familiar features such as:
> - User credential management and single sign on support
> - Attribute management
> - Enhanced Federation-wide searching (with new search front-end)
> 
> As well as recent features since v0.5.1 and pending features coming on line such as:
> - Automatic fail-over and fault tolerance
> - New administrative front ends
> - Computation / Visualization tools
> - and more...
> 
> I would suggest upgrading :-).
> 
> The installation/upgrading process has been streamlined to make things more straight forward - and the team and I are always glad to help if needed.  There are further enhancements in the queue that will further streamline the process to make installation/upgrading as turn-key as possible.  There are also enhancements to the federation protocol and new features as well, that will soon be available in an upcoming v0.5.3 release that is currently in test.
> 
> FYI:
> The current installer installs the ESGF Node at v0.5.1.
> In staging is v0.5.2
> In test is v0.5.3.
> 
> Note: The list above are versions of the node manager component.  As it is a component of the ESGF Node, the node itself has a version currently ESG Node v1.0.4+ (Stuyvesant release).
> 
> The new ESGF Node augments the data node and is a complete solution in and of itself while being compatible with the current Gateway.  It should be considered a useful tool to help the climate community and adding to the ESG ecosystem of utilities :-).
> 
> Whew... (that was a long email)
> I hope this was somewhat useful information in the context of your tangent. :-)
> 
> 
> On 7/1/11 6:49 AM, Kettleborough, Jamie wrote:
>> 
>> I created this table by: looking at each gateway, figuring out which
>> modelling institutes contributed to the CMIP5 project, selecting a
>> sample data-set, creating a wget script, and then inspecting the url in
>> the script.  (I couldn't get to any NCC data as I didn't have access).
>> I only sampled one dataset.
>> 
>> This feels a bit long winded - what is the expected way to do this?
>> Although today I was just gathering information on what data nodes are
>> out there I can imagine this as a part of a real life use case (a very
>> common use case).  If I want to gather a diagnostic, such as monthly
>> mean surface temperature from as many models as I can, I think I'd have
>> to do this sort of trawling.  OK I maybe only have to do the initial
>> mapping of institute to data node once, but I think there is still a
>> trawl needed between gateways to get the data.  I may be missing
>> something - and I took some unnecessary steps. Please let me know if
>> this is the case.  Estani, Martin, Sebastien - sounds like you have
>> already started to do this sort of thing?
>> 
>> I also note that not all gateways know about all institutes - I think
>> this is a known problem.  For instance PCMDI doesn't know about IPSL,
>> and only NCI seems to know about CSIRO. Any ideas when this might be
>> resolved?
>> 
> 
> -- 
> Gavin M. Bell
> Lawrence Livermore National Labs
> --
> 
>  "Never mistake a clear view for a short distance."
>        	       -Paul Saffo
> 
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