[idvusers] http based .nc retrieval issue in IDV 2.4

[Stuart Maclean]

Hi Jeff, yes that solved it, thank you.

I should have pointed out that my older config was using standalone  
Tomcat.  Our web server changed to Apache with Tomcat behind it (using  
mod_jk for comms).  I added this

<Location "/uwme/netcdf/*">
   Header set Accept-Ranges bytes
</Location>

to my jk.conf file and bounced Apache and IDV loaded the nc file over  
http just great.

I actually was a bit puzzled that, even though I 'forward' all  
requests matching a certain url pattern, in my case '/uwme/*" over to  
Tomcat, I still needed the Apache tweak above.  Perhaps Tomcat was  
generating the header but then Apache was dropping it?

Thanks again

Stuart


On Mar 17, 2008, at 3:33 PM, Jeff McWhirter wrote:

>
> Hi Stuart,
>
>> In the past I have used IDV to load and view data from a netcdf  
>> file  (CF-compliant) accessed over http (I use Tomcat as the web  
>> server, not  that that should matter).  this is NOT an opendap  
>> server in any way.
>>
>> Now, in IDV 2.4, this is failing.  I get this error:
>>
>> java.io.IOException: Server does not support byte Ranges
>> 	
> This is probably a http server configuration. To access netcdf files  
> via http you need to have byte ranges turned on on your server:
>
> http://www.unidata.ucar.edu/software/netcdf-java/reference/HTTPservice.html