THREDDS and OPeNDAP

[James Gallagher]

On May 1, 2007, at 8:45 PM, Roy Mendelssohn wrote:

> The THREDDS people will probably give you a more complete answer,  
> but based on what I know:
>
> 1. TDS does not use Hyrax - it is 100% java and use the nj22 code.
>
> 2.  If you are using the OPeNDAP DRDS to connect to data bases, TDS  
> does not do that.
>
> 3.  We have netcdf files of all kinds - and there has been no  
> problem of serving in the one or the other server.  TDS does  
> provide aggregation and the ability to append metadata through NcML.
>
> 4.  Based on experience from others, GRIB data works just fine also.
>
> 5. On the client side, it should make no difference.

All correct as far as I know. TDS does not handle HDF4, but does a  
good job with most HDF5 files. Hyrax handles HDF4 and will handle  
simple HDF5 files if you're willing to build the HDF5 from source.

James
>
> HTH,
>
> -Roy
>
>
> On May 1, 2007, at 5:45 PM, Pauline Mak wrote:
>
>> Hi all,
>>
>> Has anyone done any extensive testing on the compatibilities  
>> between THREDDS OPeNDAP server and the OPeNDAP servers  
>> themselves?  I'm trying to gauge if it is possible to replace our  
>> OPeNDAP server with THREDDS, and then, maybe bring down the old  
>> OPeNDAP servers.  I'm in the process of going through some of the  
>> clients listed on the opendap site.  Lastly, does the THREDDS  
>> OPeNDAP server uses Hyrax (Server 4)?
>>
>> Thanks,
>>
>> -Pauline.
>>
>> -- 
>> Pauline Mak
>> Software Developer, Insight4
>> Suite 2 / Level 1, 114 Murray St.
>> Hobart, Australia 7000
>> p:  (03) 6234 5203
>> f:  (03) 6234 5603
>> pauline at insight4.com
>
> **********************
> "The contents of this message do not reflect any position of the  
> U.S. Government or NOAA."
> **********************
> Roy Mendelssohn
> Supervisory Operations Research Analyst
> NOAA/NMFS
> Environmental Research Division	
> Southwest Fisheries Science Center
> 1352 Lighthouse Avenue
> Pacific Grove, CA 93950-2097
>
> e-mail: Roy.Mendelssohn at noaa.gov (Note new e-mail address)
> voice: (831)-648-9029
> fax: (831)-648-8440
> www: http://www.pfeg.noaa.gov/
>
> "Old age and treachery will overcome youth and skill."
>
>
>
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--
James Gallagher                jgallagher at opendap.org
OPeNDAP, Inc                   406.723.8663



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